Q: My car jerks slightly when I'm at a steady speed or trying to stay at a constant speed only around 40mph to 50 mph. I was then told my throttle body needed to change and so I bought a new one. Sometimes this can be a quick, cheap, easy fix for initial stumbling and hesitation when you step on the gas. Hi all. I bought it 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 looks like you're new here. Fuel filter won't wait until you hit 40mph for it to act up, fuel pump might, are you SURE you routed the vacuum hoses properly? The 2 wires leading to the sensor element will always read open. Oct 30, 2005 I have a 91 RT TT Stealth, about 48,000 miles. my car has loud knocking sound, and shifts real hard, 1998 Saturn S-Series 2 Dr SC2 Coupe For Sale, Do Not Sell or Share My Personal Information. This is how the timing of fuel injections into the chamber is made. It seems more Torque converter lock than loading. wrong gear for the right speed or vice versa . Car hesitating while driving. We took the car to the dealer where we purchased it and they were unable to find anything because there were no codes present. As others have said, lack of fuel. In my case, that was a defective wire (cracked or burned..) A cracked or broken sparkplug would make run the engine very rough right away at any gear. What could be the cause? Camera Tripod: https://amzn.to/2Jwog8S6. Also, you should buy a rebuildable / serviceable fuel filter. Actually you can probably get your purchase price back very easily w/o reselling. An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean. I have a 2005 Ford Focus Wagon and it does the same thing! You should clean your MAF sensor if you haven't lately. Either there will be too much air or fuel, or too little. I feel it if I accelerate quick or cruise, and feel it more when I coast. Misfire is due to ignition, or lack thereof. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor. So, when next you notice the car hesitates and jerks when accelerating, it may be due to a dirty air filter. My 2001 Toyota 4Runner when the engine is either hot or cold and in neutral when trying to rev the engine it has a big hesitation and falls on its face and then revs up every time. The winner will receive a reply to their originally posted comment in the video and will also be announced in a newly posted comment by Scotty around Sunday 9 am CST. How difficult on the 3.5 V6? When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If still having issue after that let me know. Hesitation on acceleration. Jun 16, 2016. problem started the first day of new car purchase. If any of the vacuum hoses around your engine become damaged or worn out, you could experience air leakage from them. wish to see you more in the coming days. I would check all my connections, too. 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. they were not sure how to fix it. 2CarPros: Car Acceleration Questions and Answers. And be aware that exposing a perfectly good, even brand new, O2 sensor to our oxygen rich atmosphere while the sensor element remains heated will/might "spoil" the sensor, cause a CEL, for the first 100-200 miles. Well, you gotta first check the basics. Battery draining and charging - 2007 Jaguar XK. The car does hesitate when at 35-40 mph and above and it response very poor when press accelerator slowly and steadily. This may cause a hesitation, loss of power or jerking reaction when this sensor is malfunctioning. 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. Or show off your own car mod on Wednesdays. Took the car to the dealer to have it . I noticed that during acceleration onto the freeway or on inclines, the vehicle would start to hestitate or stutter as I referred to it. Are there any codes stored? Lexus # 89465-50140 / Denso OEM # 234-4167 / Denso Universal # 234-4209 / Bosch OEM # 15272 / Bosch Universal # 15733, Bank 2 Sensor 1 - Passenger side (right front) on exhaust header. There's a wealth of information to be found in what you get from it. Yes it is an automatic. The car seems to hesitate in 4th gear right around 43 mph. Can you help diagnose? Drives fine otherwise. JavaScript is disabled. Codes won't tell me and the mechanics I've been to Specifically, it will tell you what your TPS values are, then you can compare that to what they should be. There are a lot of things that can cause this. Very rarely it jerks so bad . How bad is it, and does it prevent you from driving the car normally? gas mileage has also tanked. If after replacing them I still have issues, I'll post back here for more possible solutions. Continuing attempts to accelerate can result in severe engine damage. Spark plug health, Air Filter clean, Fuel Filter replacement. It makes a shooting sound (pow) many tyms. This could be accompanied by a hesitation in the motor when driving. 1900-2100 or so) and only when shifting from 2nd to 3rd. When trying to answer why your car hesitates when accelerating, the most common reason might be the mass airflow sensor is clogged or damaged. Im not sure I understand the question. The hissing sound you are hearing is most likely a source of a leak in your cooling system. Hesitation. It only occurs while accelerating between 40-45 mph. Timing could be out. for an ignition miss. Step taken so far. Getting frustrated with money spending on hesitation problem.. mechanic have change injectors, pump, new iridium spark plug, filter and MAF.. plugs are OK. factor. You'll get info from other sensors, as well, like the MAP. Check and change the starter relay on the inner fender near the battery. Join the Lexus Owners Club and be part of the Community. Any offensive, obscene, or lude comments will be ineligible to win the giveaway.8. Car hesitates when accelerating. Well a few more miles down the road it started again. Amirkade A bad transmission often will kick violently when trying to change gears. We're a forum community dedicated to the Pontiac G6. Saturn 4 door stick , 1.9 . necessary and make sure pcv valve is good Follow the red battery cable to the inner fender relay and this should be your problem. You are using an out of date browser. It's driving me crazy to figure out what it could be. I'm thinking it Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. If you do not agree to these terms, then do not enter the giveaway.Things used in this video:1. Saturn Outlook we are looking at. around 40 mph. I put on a new fuel pump and still having the same problem. 3. What is interesting about the problem is that it only occurs as follows: driving at around about 60 miles an hour and slowly accelerating. mechanics. 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. This problem can develop at any speed, depending on which gear of the transmission is going bad. 4 inch lift, Winch, Aussie rear. ), What Oil Should I Use? I'll see how the car runs as the weather gets warmer here in Chicago. I had not tightened a clamp enough around the filter/pump area after replacing my entire fuel system. Any type of miss, or lean condition, like a clogged injector will cause a code to be set. The transmission sometimes can prevent the car from maintaining proper speed. The fan motor itself is also a possible and common failure point. Powered by Invision Community, Lexus LS400 / LS430 / LS460 / LS500h / LS600h Club, Hesitation (Misfire) When Cruising At 40 To 60 Mph. Davidson has written articles for various websites. Still at it. They are so much better. The 2 rear diff'l mounts are still in the freezer awaiting a nicer day. 2. Make sure youre putting the correct octane in the vehicle. Scotty Kilmer, gives you a chance to win a car product, by entering in this weekly giveaway. My mustang hesitates 40mph and gives me hill starts assistant not available ! 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. When I take the car out of gear there is no shutter. loved reading your article. What could be the problem? Saturn SL with 169450 miles.. about 50 miles ago she started stuttering from front to back while in 4th gear going about 35 mph also in 5th gear going 70mph. I replaced spark plugs all but number 3 today didn't change anything, change tps nothin, changed air . When a car starts jerking as you accelerate it, there is undoubted that it's usually a sign of an impending issue. Have a 1998 manual trans. Common issues include: http://www.g6performance.com/forum/showthread.php?t=22038. Based on this information, the engine control unit will know if there is too much or too little oxygen being ignited in the chamber. I'm still thinking it could be the fuel pump or the crank and/or cam sensor. Hi Everyone. Turns out the spark plugs and wires were just worn. Starting with cleaning the egr valve. Hey guys, went out and purchased a clear filter like Rudi posted up. We took the car to the dealer where we purchased it and they were unable to find anything because there were no codes present. ehabmarco Once this started to happen I immediately turned around and went home. Car runs great between 0-40 mph and from about 50 mph on up Pasted as rich text. 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/. Misfires can be related to wrong plugs being used. They definitely needed replaced, but that still didn't fix the bucking issues. Can you narrow down when it hesitates? Thumbnail software: http://amzn.to/2k7tz6CCheck out the tools I use and highly recommend https://goo.gl/rwYt2yScotty Shirts and Merch https://goo.gl/pTAecaSubscribe and hit the notification bell! Fix the admin first, then fixing the website becomes so much easier. Is there an easy way to check for vacuum leaks that you know of? Especially around 45mph. Cleaned that off and the problem went completely away. Several years ago, having a Olds Intrigue 3.8 L, that smillar jerking effect happened and around this speed, car on top gear. I am truly stumped. describing the symptoms (which are extremely Checked it for codes? Depending on what carb you have, there may be a small screen where the fuel pipe attaches to the carb at the float bowl. Only to find out that it was my EGR This may cause a hesitation, loss of power or jerking reaction when this sensor is malfunctioning. Your car hesitating when you accelerate is an issue that can be caused by transmission problems. Thank Heavens for my wonderful mechanic who found and fixed this! You cannot paste images directly. The winners full name and address will only be used to mail the giveaway prize to the winner and nothing else. I have also noticed the same thing driving the car today. guides, Check cars for recalls, common issues & maintenance Paste as plain text instead, Do you think its a sensor issue?
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