We may earn a small commission from affiliate links and paid advertisements. The vehicle has a stumble like a misfire(I think anyways) when driving. Question type: Maintenance & Repair. I noticed that during acceleration onto the freeway or on inclines, the vehicle would start to hestitate or stutter as I referred to it. Yes, it is safe to attach a battery charger to the trunk power lugs. Pasted as rich text. The '90 and one of the '92's are now off the list. Well, you gotta first check the basics. Drives fine otherwise. Currently am thinking of checking the electric work out, but i need advice. This time more frequently and with some stalling. 2023 CarGurus, Inc., All Rights Reserved. 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. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! A catalytic converter is responsible for reducing the amount of pollutants that exit out of a car's exhaust. I think My car was jerking as well. There are a lot of things that can cause this. Im hoping not needing internal work .. wondering if oil on plugs could be cause faulty manual fuel pump 0 2 sensor ,dont hear any vacuum leaks.. just seeing if one those could be the problem before start tearing down to see if o ring or piston rings are causing oil to fouling my plugs .just with not smoking maybe just fuel problem not enough or coil not getting hot enough ? Turns out the spark plugs and wires were just worn. 1) Either transmission chooses wrong gears around 30-40 mph speed or something else, but car jerks sometimes significantly. We changed spark plug, fuel filter, transmission fluid, engine oil, engine filter, and clean throttle body, change air flow sensor. 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/. Can you help diagnose? Depending on what carb you have, there may be a small screen where the fuel pipe attaches to the carb at the float bowl. fuel pump. The fan motor itself is also a possible and common failure point. Clear editor. Id visit a mechanic to get it checked out as soon as possible. Hesitation Problem with 2007 LE I4. I have spoken to That rules out 2, 3, and 4 of your theory. It has been a work in progress, and around April I finally got it running after rebuilding the carb. Are there any codes stored? I cleaned the carb and put some sea foam in it ..noticed have oil on spark plugs on threads and getting down into chamber . $29.93. Help? Can you describe the hesitation problem in as much detail as you can? Oct 30, 2005 I have a 91 RT TT Stealth, about 48,000 miles. Itd be best to bring your car to a shop you trust for a diagnosis. Put the clear filter on and we are up and running past 40-45mph without the sputtering, hesitation and stalling. An engine hesitation is an interruption of continuous power during acceleration. Shudder or Vibration While Driving at Speeds Between 35 and 40 MPH on Acura MDX Problem Description A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. 13 Answers 805 richksiny answered 7 years ago i would say fuel filter , pump as well. Any ideas or things to look at would be appreciated. or Mass Air Flow sensor. ;), Yes before changing the O2 sensor, The MAF/IAT sensors had been cleaned AND even changed without any improvement, One more thing I want to mention is that the O2 sensor was completely dead (no reading for any resistance), I knew that this sensor was faulty (I had a CEL) but I could not imagine that this is the reason of misfire, that's why I left it to be the last option. So now comes the task of draining and cleaning the gas tank. Copyright 2023 Leaf Group Ltd. / Leaf Group Media. I noticed that. Very common problem on the LS400 specially 1995/1996. How to Fix Car Hesitation, DIY with Scotty Kilmer. Could be bad gas or an unrelated issue. You will need to figure out the cause of this problem and get it fixed by an experienced mechanic. This happen with a Pontiac 6000 , 2.8 L. hey guys, same issue here, I have a manual tranny 06 gtp. for an ignition miss. 03-30-2004, 11:11 AM. Codes won't tell me and the mechanics I've been to I have changed the TPS, coil, coil igniter/module, plugs, cap, wires, rotor. 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. Never any sponsored content, just the truth about everything! It is a 350 it did over heat but head gasket good no water in oil or over heating . It doesn't happen all the time and doesn't matter what kind of incline I'm on. Repair or replace any hoses which are causing the leak. I could take my foot off the accelerator and then reapply and my vehicle would work fine then. I have a '96 saturn sl1. Half cab. If press hard it downshift, revs high and pull but it is inacceptable driving style. I have had the car in the shop at least 4 times for this problem, which has improved, but it is not completely resolved. Fuel System. hesitates around 40 to 60 mph. I replaced the spark plugs last night after reading your first post Marde. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Doesnt using an abbreviation only to then state what the abbreviation stands for really defeat the purpose of aforementioned abbreviation? if I was guessing & it had no code I would run some Techron through the tank. Yes it is an automatic. My 2001 Acura TL is starting to hesitate when accelerating, then starts slowing down. Instead of going faster by stepping on the accelerator pedal, the speed will be reduced. When I bought it they said My car is a "beater" but now the problem has become a challenge. Im not sure. Not if its unfamiliar to the audience or needs to be disambiguated. Now it is starting to stall when stopped. this issue started when I had about 97000 miles and has gotten worse. Those cars ran fine as well. Our certified mechanics come to you Backed by 12-month, 12,000-mile guaranteeFair and transparent pricing. that I should have all the fluids flushed and replaced soon. You are using an out of date browser. totally fine. 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. When was the last time the spark plugs were changed? The spark plugs may be dirty or worn. Your car hesitating when you accelerate is an issue that can be caused by transmission problems. Car hesitating while driving. When I apply throttle it hesitates and stumbles. How to fix engine hesitation during acceleration. The radiator fan operates on a fused circuit with high amperage relays to drive them. Youll probably have to take it to a shop to get that diagnosed. We are possibly buying a saturn outlook with replace if needed . I will be trying some cleaner in the fuel tank to see if it's the injectors, along with some premium gas. The 2 wires leading to the sensor element will always read open. Still at it. Doesn't appear to be overheating, and temp gauge seems to be working fine. Additional questions welcomed. I ran Gumout through the gas tank, changed plugs, wires as well installed a brand new EGR. You'll get info from other sensors, as well, like the MAP. Spark plug health, Air Filter clean, Fuel Filter replacement. 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. They have rewired the sparkplugs (after a major tune-up at another place), put in a fuel injector and . Bella Online: What Does a Car Transmission Do? I'm going to try that next. 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. When trying to answer why your car hesitates when accelerating, the most common reason might be the mass airflow sensor is clogged or damaged. Upload or insert images from URL. They definitely needed replaced, but that still didn't fix the bucking issues. If you give it WOT the stumble will not happen or if you do like a passing a car event, the problem . Post Reply . Paste as plain text instead, Made with in Silicon Valley. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. I dont know, youre probably going to have to have a technician take a look at it and see if there are any other problems. YourMechanic All rights reserved. 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. I bought it If you are still having trouble, From what you've described, it sounds like you have a head gasket leaking into the engine cylinder and then out of the exhaust. About a 90 min drive from where I live in Virginia. Good work ehabmarco. The only way I know to test those is to heat the element in our oxygen rich atmosphere and test for the output voltage to be in the proper range. The following problem occurred afterwards. This is what it means when the car engine hesitates. The fuel filter 's job is to filter the fuel going to the fuel injectors and then enter the engine. The frustrating thing about the diff'l mount failure symptom is that there was no CEL at all. My Nissan Macra car hestates when pressing the gas pedal, it acts like losing the power! The contact stated while driving approximately 40 mph, the vehicle began to shake and decelerated to 10 mph independently. Starting with cleaning the egr valve. Any codes? Engine starts right up and idles smoothly. But don't worry because this symptom also has a solution like other car problems. Get a chance to show off your own car on Sundays. I don't understand why it drove perfectly that one time and I can't recreate it now. 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? Ethanol vs Non-Ethanol Gas (Which is Better? The jerking happened in my car also(G6 V6 GT). It is also common to experience issues when switching from park to drive for transmission problems. 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? Car advice. Ive been lurking this forum for a while and tried to read every forum post related to this problem Im having. year amongst other things. What is your rpm at 40 mph on a level road? I' have also changed the EGR but that did not help I unhooked the old filter and I could not believe the junk that came out of it. DS18 PRO-ST 1.9" Replacement Upgrade Bullet Compression Tweeters with Crossovers- Car OEM Tweeter Upgrade Kit for Many Subaru/Toyota Models - Replacement for H631SFJ101 and H631SFJ100 (Pair) $79.95. 1. Either the engine is cool or hot. you all about my successes and failures. How bad is it, and does it prevent you from driving the car normally? By Any ideas what it could be or where to . The problem persist. At this point in time, I'm thinking it could be my Low fuel pressure will cause the engine to run very leanly, and therefore it may cause the engine to sputter. Engine starts right up and idles smoothly. Hi Everyone. For me the magic speed was 45 to 50mph. It will definitely be cheaper to have a proper diagnosis than to fire the parts cannon at the problem. just had this problem with a 2002 saturn sl2 turns out it was a fuse under hood labeled TRS It did great going down there and throughout the week that we stayed. I have changed the spark plugs. I have a 2005 Ford Focus Wagon and it does the same thing! Sounds like it does not like the autozone tps sensor. This made the hesitation MUCH better in low gears and speed but it still hesitated around 40-50MPH almost feels like a fluttering or dead-spot in the pedal. Wheel balance issues tend to manifest in that speed range. If it were my car I might hook up a scanner and check short term and long term fuel trims. This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.15. Actually you can probably get your purchase price back very easily w/o reselling. then fill with ethanol free fuel. 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.