car hesitation around 40 mph
Your previous content has been restored. There are a lot of things that can cause this. necessary and make sure pcv valve is good For a better experience, please enable JavaScript in your browser before proceeding. Car hesitation whi Shop the Scotty. After. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor. I have changed the spark plugs. I tried replacing the MAF and MAP sensors first. Upload or insert images from URL. I always need things like oil, filters, shop rags that I can purchase with the credit. wrong gear for the right speed or vice versa . Does it happen in any gear? There's a wealth of information to be found in what you get from it. Normally under these circumstances Id look into normal causes such as Coils, Wires, O2 sensors, Injectors, Fuel pump/filter, etc. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery, http://forum.ih8mud.com/forums/pa-keystone-cruisers.77/. I have a 2005 Ford Focus Wagon and it does the same thing! Is there any downside to having two gas filters in a fuel system? When the engine is first started cold it is running open loop and the O2 sensors aren't used at all. Car runs great between 0-40 mph and from about 50 mph on up but the car jerks while eccelerating between about 40 - 50 mph. Either there will be too much air or fuel, or too little. Saturn Outlook we are looking at. Can you describe the hesitation problem in as much detail as you can? When I bought it they said VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 2023 CarGurus, Inc., All Rights Reserved. When the engine reaches operating temperature both Hello, thanks for writing in. Usually due to rust clogging the fuel filter because the tank if full of rust particles trying to make their way into your carb to clog that. Based on this information, the engine control unit will know if there is too much or too little oxygen being ignited in the chamber. The The 2012 Mercedes-Benz ML350 BlueTec is a safe vehicle that offers many standard features such as solid wood accents, thick leather on the seats, and memory buttons to save your seating position. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor. By In any case, you will likely find the problem relates to an imbalance in fuel and air mixing in the chamber. All lights, chimes etc stay on but no acceleration. The O2 heater resistance quoted as being required is quite a bit out of range with the actual factory shop/repair manual specification. Battery draining and charging - 2007 Jaguar XK. 2014 Ford Escape with 88k miles. When a engine is hesitating it will cause the car to lunge or surge which will cause a sudden jerk as the car slows down. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. the heater is only used during initial engine start up. I don't think it is a transmission issue as the transmission will shift with no affect on the shudder. Indeed, over time, vibrations, the pot fasteners on the automobile chassis can come off.The most common reason for your Mitsubishi Outlander to have a clunking noise/sound coming from under your car is worn brake pads. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Misfire is due to ignition, or lack thereof. what things should i check first? When it does it, it does it both when I'm accelerating and decelerating. Has the problem gotten worse since the mechanic changed those parts? Any check engine lights? I will be trying some cleaner in the fuel tank to see if it's the injectors, along with some premium gas. I noticed that. this issue started when I had about 97000 miles and has gotten worse. During the week in the Outer Banks, I did notice one time that there was a slight hesitation and sputter during one of our evenings out. I basically have to push pedal 3/4 way down so that it downshifts and accelerates.. Amirkade costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, The statements expressed above are only for informational purposes and should be independently verified. Just the other day it started bucking and sputtering around 40-45 mph while driving on the highway. Only to find out that it was my EGR replace if needed . The Fora platform includes forum software by XenForo. If you do not agree to these terms, then do not enter the giveaway.Things used in this video:1. The hesitation appears around 1700-1800 rpm and last until about 2,200 rpm. Codes don't solve everything. Very common problem on the LS400 specially 1995/1996. Let's Jump In! I second the live data suggestion. It comes on as I get below 40. A bad transmission often will kick violently when trying to change gears. Started March 4, 2021, By We have a 2008 G6 with a V6 engine. Had one of my U joints replaced. V6 Accord's are particularly prone to bad ignition coils. Sounds like it does not like the autozone tps sensor. hesitates when cruising at 40 to 60 mph. Codes won't tell me and the mechanics I've been to At exactly 40 mph. This did not fix the problem, just made it worse when driving. I just noticed when I am driving on the freeway about 65-70mph I can feel a hesitation, I hit the gas a little and it is gone. If so, I can post the diagnostic procedures from the '92 Repair Manual. Currently am thinking of checking the electric work out, but i need advice. He is a graduate of Michigan State University and holds a Bachelor of Arts in advertising. would replace it for $3500 it was simply 2 $1.39 fuses. I noticed that during acceleration onto the freeway or on inclines, the vehicle would start to hestitate or stutter as I referred to it. SOURCE: hesitation at 40mph and 50 mph. The winner will be required to give Scotty their full name and mailing address to receive the prize.12. Fuel pump / pressure , cat is plugged , egr valve : It is a 350 it did over heat but head gasket good no water in oil or over heating . I took my car to the dealer (after they fought me on it) to find out that it was the spark plugs (whicjh BTW arent covered under warranty, so if you dont have a warranty it can de pricey if it's more than one plug.) I suspect you cleaned, as anyone would, the MAF/IAT sensors at the same time, more likely the actual "misfire" cause, as installing the O2 sensor. The car still struggles with acceleration, jerks more than it smoothly drives, shakes if I try to go too fast, brakes get hard sometimes and engine stalls forcing me to pullover and cut it off for a few mins before driving again. My advise is to go with the following sequence: 1- check spark plugs and wires (must be original) 2- Oxygen sensors (and this was my case one of the 2 main oxygen sensors was dead and caused the random misfire) 3- throttle positioning sensor 4- throttle body These are the most common causes of misfire Quote Posted November 27, 2011 Clogged fuel filter. Can you describe the hesitation in a bit more detail? Now it is starting to stall when stopped. Video editing software: http://amzn.to/2jv5Fhf8. If I should need to change out the metal fuel lines, does anyone know the correct size for rubber tubing to connect from the gas tank forward? You might want to drain a little fuel into a glass jar while you're doing it "just for giggles". The car likely would still run fine at lower speeds, but it should be taken to a mechanic immediately. Hard to crank, No check engine light no codes stored. Any ideas or things to look at would be appreciated. An engine that hesitates when accelerating is either sucking too much air, not getting enough fuel, or misfiring. As the car approaches 40 mph, the RPMs will increase in the engine. I replaced the spark plugs last night after reading your first post Marde. My 2007 Ford Edge hesitates/ jumps at 60-70 mph. It may not display this or other websites correctly. I have a 2014 vw tiguan and it seems to be hesitating only when its hot outside (85+ degrees) it will trip a check engine lean code but if I clear it and drive during cooler temperatures it drives perfect. The transmission sometimes can prevent the car from maintaining proper speed. This generally will happen at the same speed with consistency as the transmission continues to corrode. Replaced the rear differential's front mounting cushion to clear up the problem. x2 on the fuel system. You must log in or register to reply here. This will cause hesitation as you accelerate. Michael Davidson started writing screenplays in 2003 and has had a screenplay professionally produced. I had the same problem and it was the gas tank. I tested mass air flow harness and I get 6.1 volts at PCM wire. It is really noticable when pulling out and gradually working up to around 40MPH. Idles a little rough at times as well. Lol old_mopar_guy April 29, 2019, 10:52pm #9 The only thing your 09 Nissan has in common with a 99 Mercury is that they both have 4 wheels. 4 inch lift, Winch, Aussie rear. Step 1 - Check the ignition coils and spark plugs. Good work ehabmarco. After 45 mph it stops and I have no other issues. Starting with cleaning the egr valve. Your vehicle could have dirty fuel injectors, a damaged fuel pump, a blocked catalytic converter, a faulty mass airflow sensor, broken spark plugs, or even an accumulation of moisture. If you have an account, sign in now to post with your account. I have a 2015 fusion 1.5 turbocharged after getting gas, once car is killed and I go to crank it again the car goes to shuddering and losing power. They tried to sell me some other brands but I had them put in AC Delcos. Doesnt using an abbreviation only to then state what the abbreviation stands for really defeat the purpose of aforementioned abbreviation? I have a '96 saturn sl1. Checked it for codes? Hesitation on acceleration. Any ideas? This may cause a hesitation, loss of power or jerking reaction when this sensor is malfunctioning. Let me know and I will post them. just had this problem with a 2002 saturn sl2 turns out it was a fuse under hood labeled TRS My Toyota Corolla Sport 2003 model started hesitating while at speed, I consulted mechanic and they change fuel pump, filter MAF, check the throttle position sensor, its like its not working, I have to start twice unlike before.. what should I do? My car is a "beater" but now the problem has become a challenge. Or show off your own car mod on Wednesdays. It can perform light off-roading tasks while still being able to tow a good amount of weight. Even if you purchased it online, you might be able to get a store credit at a local retailer like Autozone, Advance, Pep boys, O'Reilly's, etc. It appears that if you had "read" the actual code it would indicated an open O2 sensor HEATER, not the sensor itsself. would it benefit to replace the air induction system with an after market intake, or just go with a standard air filter replacement? We have a new video every day! A catalytic converter is responsible for reducing the amount of pollutants that exit out of a car's exhaust. Tugging can be the result of ignition, EFI, fuel pump pressure, and even the secondary "Trac" engine de-throttling servo. brakes were replaced within the past Its new in box and I'm happy to pass it on for less than I paid for it (I paid $65.00). I was then told my throttle body needed to change and so I bought a new one. 2. I took several days before reseting the CEL "took". My car hesitate when you start and start driving it does not move then after a jurk it moves. . Plugs are burning cocoa brown/tan. The engine will continue to rev as the car tries to accelerate above that speed, but the car will not be able to shift into gear for further speed. JavaScript is disabled. Wrench Set: http://amzn.to/2kmBaOU5. I just recently purchased my 00 Focus SE with 96,xxx mi. A clogged fuel filter can cause the engine to get too low fuel pressure or cause a clogged fuel injector. All the other vibrations have gone away. about 6 months ago from a friend of Please see our. Again no improvement when driving. When is the last time the spark plugs have been replaced? My car stalls when Im getting ready to pull of at a light and when I hit the gas I have hit hard for it to go and I have my fuel pump changed I have transmission leaks they were fix it just started doing it a few minutes and my car knocks while sitting a light and rattles when I take off sometimes, Any answers you described my issue to the T, I was wondering why does my car lose power/jerks and hesitates to accelerate when Im close to the E Ill have 60 miles of fuel left and it starts to act weird. For myself I would accept that any heater resistance up to 18 ohms would suffice. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Come join the discussion on performance modifications, accessories, troubleshooting, maintenance and more! Steve. (This after we changed the fuel filter.). Several years ago, having a Olds Intrigue 3.8 L, that smillar jerking effect happened and around this speed, car on top gear. If you give it WOT the stumble will not happen or if you do like a passing a car event, the problem . totally fine. Thanks for all your input. Affiliate. in the engine (youll need a pick set like a They are so much better. Jun 16, 2016. Best bet would be to take it to a local shop to see what they would charge you to replace the plugs. The mass airflow sensor, also known as the MAF sensor, is connected to the air cleaner. When Will try and let Car Hesitates When Accelerating From Stop: 11 Common Reasons In essence, delay or hesitation of the engine during acceleration happens when the engine does not get enough power, and it needs more power to accelerate from a dead stop than when maintaining the speed of a moving vehicle. What could be the cause? The engine then stalled. CODE P0300,P0302,P0303. Continuing attempts to accelerate can result in severe engine damage. You are using an out of date browser. My car used to do the same exact thing, I literally went to 5 Forgot to mention, older cars like yours and mine will often develop vacuum leaks within the intake system. Car has about 47K miles and has had all maintenance performed. This is what it means when the car engine hesitates. Depending on what carb you have, there may be a small screen where the fuel pipe attaches to the carb at the float bowl. http://www.g6performance.com/forum/showthread.php?t=22038. Always check your fluid levels, -then check your car. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Mailing Address:9169 W State Street, Suite 2867Boise, ID 83714. Ever since they replaced the plugs everything works AMAZING and the car drives really smooth. This condition can cause dangerous situations in heavy traffic when drivers behind expect continuous forward movement. To quote a phrase, "If you eliminate the impossible, whatever remains, however improbable, must be the truth! Post Reply . 1) Either transmission chooses wrong gears around 30-40 mph speed or something else, but car jerks sometimes significantly. Entrants that use computers, programs, or any other means of cheating by adding additional comments through more than one account, will be ineligible to win the giveaway.13. Most of the time if the vehicle is running fine it comes on from low brake fluid or a failing wheel speed sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-wheel-speed-sensor). It is usually the result of a problem with the air and fuel mixture within the combustion chamber. its worse when car is warmed up and reaching over 40mph Follow the red battery cable to the inner fender relay and this should be your problem. ), What Oil Should I Use? Valvegoodluck!!!!!! if they carry the part. It makes a shooting sound (pow) many tyms. Hesitation at around 45 to 50 MPH when you go to accelerate Hello, I started getting a hesitation/bucking in my 2001 F150 SCREW 5.4L 96,000 miles. Thanks for the thoughts and suggestions. Had car serviced (Nissan Note 07) because I noticed acceleration issues. Make sure youre putting the correct octane in the vehicle. cant maintain a speed over 50 . Ive been lurking this forum for a while and tried to read every forum post related to this problem Im having. Have you taken it to a local mechanic for an inspection? I have the same thing on mine but hasnt changed with all new coils and plugs. moving you to the technical section, should get more views there. Once Im going faster or slower it stops. Engine starts right up and idles smoothly. It starts as the Rav slows through 40 MPH; sometimes starting around 42-45 MPH and will continue through about 35 MPH. For a better experience, please enable JavaScript in your browser before proceeding. So now comes the task of draining and cleaning the gas tank. About a month or so ago, the car started hesitating, almost a sharp jerking, when it gets to around 40-50 MPH. A healthy transmission is necessary to keep an engine running at optimal performance, and when a transmission starts to fail, there are immediate effects on the car. 94,000. I have a 1996 Saturn SC2. A good scan tool might reveal something but it may require that the car be hooked up to diagnostics while the actual event is occurring, so that data from various sensors and modules can be captured in real time and analyzed by a skilled mechanic. Sorry, I find it a bit hard to accept that a defective MAIN O2 sensor in an engine with TWO sensors, would result in a lean misfire. I have replaced the plugs, coil packs, fuel filter, transmission was serviced - new filter/fluid and it still does it. I had suspected such for quite some time and just recently tested the theory by heating a new sensor on an electric stove element. 1. If your ECM is adjusting the engine to run too rich this could happen. Ethanol vs Non-Ethanol Gas (Which is Better? My 2001 Acura TL is starting to hesitate when accelerating, then starts slowing down. Used to happen to me after wheeling when I would shake all the rust particles from the bottom of the tank. Repair or replace any hoses which are causing the leak. The f-body EGR was designed to work with a low restriction exhaust and thus will typically last longer. These are the f-body part #'s. About $65 for both solenoid and valve from Dal. Just a hunch. No code. When I apply throttle it hesitates and stumbles. Right around 40 in what I believe were the car is shifting into 4th gear or overdrive the car starts to jerk (RPM's do not fluctuate/MPH do) If I give it some gas at this point the jerking stops but may return at higher speeds. The jerking happened in my car also(G6 V6 GT). If you can use a scanner live data check your oxygen sensors especially the upstream sensors can cause all kinds of problems and sometimes won't throw a code ! The b-body EGR was designed to work with a certain amount of back pressure and has a tendency to fail early when used with a cat-back. Hesitation/Stuttering While Driving Between 40-50 MPH vicjrblue Member Posts: 1 January 2016 edited January 2016 I purchased my Torrent October 2014 and it had approx. Changed Fuel filter. What could be the problem? Lexus # 89465-50140 / Denso OEM # 234-4167 / Denso Universal # 234-4209 / Bosch OEM # 15272 / Bosch Universal # 15733, What year is your LS400 are you sure this isnt about that engine ECU problem where at 45 mph it feels like your engine hits something, like a super rough shift boom? Sure hope not but seen it happen on other cars. Ignition, fuel system, vacuum, or torque converter issue would be my guess, but any of the above will set a code! I have not tried changing the fuel pump or filter yet. Misfiring might be occuring. Started February 14, By Have a 1998 manual trans. Could be some debris in the secondary jet. Yes it is an automatic. This will cause your engine to lag, stumble, or hesitate. loved reading your article. Also, you should buy a rebuildable / serviceable fuel filter. By Interestingly, such an act can help improve the lifespan of the engine. The Mechanic Monday Giveaway will begin October 8th at 7 am CST and run for six days, ending on October 14th at 9 am CST.2. EPB, BMS for Specific Vehicles, Software Lifelong Free Update, NOT Support All Cars $199.00 . Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. Must have been his 'beater' car. All 4 are the same sensor its just the cable lengths which are different. It's FREE! If you let your fuel injectors continue to be dirty, then it will impact how much fuel gets injected into the chamber. If after replacing them I still have issues, I'll post back here for more possible solutions. make a purchase, we may earn a small commission. ", Now I need help and I am not sure if I should start a new topic or not, This is related to error code 47 in traction control (When idle switch is ON, sub-throttle position sensor signal is 1.45V or higher), Any ideas if that means that I should replace the sensor or it can just be adjusted, Yes you are right but it seems that by chance the sensor itself was also out of order. you all about my successes and failures. pump. So, when next you notice the car hesitates and jerks when accelerating, it may be due to a dirty air filter. Bluetooth Scan Tool: http://amzn.to/2nfvmaD2. While not optimal from an emissions perspective the cars still ran fine. It will accelerate past 40, but seems to have trouble. If you purchased it locally and do not have the receipt, just take it back and they may have the sale on record. Unfortunately Im still at a loss for answers and I am darn close to rolling her down the quarry lol. The exhaust gas recirculation valve, or EGR valve, may be damaged and causing a leak. Yes, it is safe to attach a battery charger to the trunk power lugs. Clear editor. Half cab. It has started bucking under load, feels like it is losing a cylinder when accelerating and I get a sweet smell like kerosene. Help? 2 people found this helpful. I can barely discern a vibration in the vehicle, but if I have my foot just over the accelerator pedal, I can feel it vibrate in unison with the noise. What causes a car to hesitate when you accelerate? This problem can develop at any speed, depending on which gear of the transmission is going bad. Zeus01 I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.Here's our weekly video schedule:Monday: Tool giveawayTuesday: Auto repair videoWednesday: Viewers car mod show offThursday: Viewer Car Question Video AND Live Car Q\u0026AFriday: Auto repair videoSaturday: Second Live Car Q\u0026ASunday: Viewers car show offSecond Daily Upload Every Afternoon of Live Car Q\u0026A videos as well!Scotty Kilmer is a participant in the Amazon Influencer Program.#savagescotty Car hesitates when accelerating. Then you will experience engine hesitation which is most noticeable at low RPM. It was the plug and wiring for the plug. Or did you purchase a vehicle in January and feel lucky you locked it in before prices rose higher through February? It is real worse on highway when cars get hot. It never stalled and otherwise drove great. Thank you for your fast reply. Good luck, I'll keep It doesn't happen all the time and doesn't matter what kind of incline I'm on. Aug 22, 2018. looked at that yet? Also having this issue, wondering after doing everything except a map sensor could the generic TPS be a thing? but especially when "something" is wrong. if I was guessing & it had no code I would run some Techron through the tank. $29.93. Mike. Camera Tripod: https://amzn.to/2Jwog8S6. Will start on changing out the fuel filters and checking out the fuel pump with disassemble. Nissan sentra 2012 My car hesitate on red light. Check Engine Light with Code P0117. Just for giggles try putting in a water-remover fuel additive to the gas tank and see if there is any difference. The contact stated while driving approximately 40 mph, the vehicle began to shake and decelerated to 10 mph independently. Do I need to get a specific tool, or take it somewhere to get tested? For me the magic speed was 45 to 50mph. Drives fine otherwise. 3) Throttle Position sensor can play havoc with the ECU if there is a dead spot on it such the ECU gets an erroneous reading at certain pedal positions. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! This obviously means we are imagining it, NOT. Well, you gotta first check the basics. my jeep hesitates to accelerate and other times its running great.Took it to get diagnosed and they say nothings wrong. Doesn't appear to be overheating, and temp gauge seems to be working fine. About a month or so ago, the car started hesitating, almost a sharp jerking, when it gets to around 40-50 MPH. My stabilize traction control light came on but went off now check engine light is on and my car hesitates when I step on the gas and go up a hill I got a 2011 Chevy cruze. Still my is not starting smoothly. Also, a loose motor mount, or rear diff'l mount, might result in a tugging feel due to the resulting "in and out" action of the lockup clutch, at those speeds. I have a2016 Nissan Sentra my car flutrate sometimes like it wanna kill ,put it on a machine and no codes come up,Can u tell me whats wrong. Took the car to the dealer to have it . I bought it This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.15. Hey guys, My 2012 LE is hesitating shifting between 2nd and 3rd. My 2008 nissian Altima is hesitant when going up a hill or accelerating Ive changed the fuel pump the air filter and the air intake hose but it is still having the same problem, We found my car was hesitating and stalling when I took off from a stop or went up a hill because after 24 years, the motor mounts were worn and that caused rubbing of the wire harness and some of the wires had the insulation rubbed off, causing shorting. Quick edit: I confirmed the TPS was getting proper power voltage. Prior to EFI there was no feedback loop on fuel trim (remember those things called carburetors?). It's frustrating to say the least! they were not sure how to fix it. could be the crank and/or cam sensor(s). They definitely needed replaced, but that still didn't fix the bucking issues. The frustrating thing about the diff'l mount failure symptom is that there was no CEL at all. Billy from United States 7 years ago BI Comment Same issue here 17 reports Isabella83 This is known to cause engine hesitation problems, so it should be addressed. This could be accompanied by a hesitation in the motor when driving. My Honda Pilot 04 hesitates while picking up after I had slowed down a bit. Im not sure I understand the question. Engine starts right up and idles smoothly. While accelerating vehicle started to shake between 30-40 mph. What can I do with my Toyota Corolla sports,Ive changed so many things like fuel pump, injector, spark plug,fuel filter yet it still hesitate..help the helpless. Well a few more miles down the road it started again. If you can still snap the throttle wide open & the tach responds appropriately, it's not the cats. Car engine hesitation is a noticeable problem that can occur as youre driving. which of the 4 wires to connect? No problems starting and traveling at slower speeds but once again 20 mins into the drive traveling between 40-45 mph the sputtering began. As you go down the road it has a slight jerking action. Vac leaks can cause or contribute to the symptoms you are having. I am going they the same issue with my sons 99 His has none.yet! When the transmission shifts, engine noise usually will quiet down, and the RPMs will drop. Changed Fuel pump 3 times within 2 weeks 2. You'll get info from other sensors, as well, like the MAP. Sometimes simply cleaning the MAF may do the trick, too. Car advice. Hesitation and Stumbling when throttle is applied Ford F-150 2001 105693 miles Accelerator ECU Wiring Jerking/Hesitation Cannot get truck to accelerate smoothly. If yes, what happens at 40 to 45 mph ( with light throttle) is your car is going into 4th gear. Here's an excerpt on the various sensor cross referencing (of part numbers): There are four O2 sensors in the LS430. It is possible for you to mistakenly think your gears are slipping when in fact it is your engine hesitating. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Hey guys, went out and purchased a clear filter like Rudi posted up. I had my throttle body cleaned, spark plugs replaced, wires replaced, had my driveline completely checked because at first it felt like a vibration but it is different. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Started February 16, 2022, By don't seem to think the crank/cam sensors could be the culprit. My car has 33000 miles. Take the fuel line off at the carburetor, put it in a glass bottle and see how much fuel you're getting and how strong a flow. 4 inch lift. Hi Everyone. Still at it. Tighten gas cap / Replacing the TPS is the only solution. Bella Online: What Does a Car Transmission Do? I put on a new fuel pump and still having the same problem. Your vehicle has two cooling fans, one is for the AC, the other is for the radiator. Never any sponsored content, just the truth about everything! My front end shakes when I accelerate at low and high speeds 2003 Pontiac Grand Prixh, A Buyers Guide to the 2012 Mercedes-Benz ML350 BlueTec, A Buyers Guide to the 2011 Mercedes-Benz ML450 Hybrid, How to Replace a Car Battery Temperature Sensor.