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hesitation

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How to Troubleshoot a Hesitating or Bucking Car
Hesitating cars and bucking cars often have worn out fuel filters, fuel pumps, oxygen sensors, EGR valves, spark plugs, or air filters.
Symptoms of a Bad or Failing Speed Sensor
Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming on.
How Long Does a Cylinder Head Temperature Sensor Last?
The engine’s performance is largely based on temperature measurements performed by the engine control module (ECM), also known as the vehicle’s computer. As the temperature of the engine increases, the...

Related questions

Question
I have a 1995 Isuzu rodeo .
The engine hesitation could be related to the causes of the high idle or could have a separate cause such as faulty oxygen sensors or a faulty throttle position sensor. I suggest you resolve the high idle first because it...
Question
Dangerously pausing when trying to accelerate 2016 Volkswagon Jetta
Hi there - if you test-drove the same model (engine/transmission especially) before purchasing this car, is the performance the same or is this specific car slower? While VW is recovering from the diesel emissions (and performance) scandal, this did not...
Question
Massive hesitation between 1-2 shifting and nearly dies occassionally at stop.
Hi there. It seems that the EGR (Exhaust Gas Recirculation) Valve is stuck and not allowing the engine to run good causing the engine to hesitate, especially when shifting. Take the EGR off and clean it. Then put it back...
Question
Acceleration hesitation under low rpms
Hello, thank you for writing in. You are definitely thinking in the right direction. Keep in mind these sensors are typically monitored by the computer, so if they fail they can illuminate a warning light. You should take a look...
Question
Car tremble a short while sometimes when travelling in low speeds or changing from idle to drive at the traffic light.
Hi there. With the limited vehicle description, all I can mention is that the throttle pedal position sensor needs reprogrammed or replaced or the gas pedal cable is out of adjustment and need adjusted (carburetor cars). The throttle is out...
Question
2006 Solara, 3.3 Engine with 218k miles. It is hestiating at take off only, RPM's jump then come back to normal. catalytic or TBA
The catalytic converter has nothing to do with the symptom you are describing and, in any event, is easy to rule in or out as a "cause" of any malfunction. You simply measure exhaust back pressure with a gauge, compare...
Question
Car hesitated and transmission engaged before acceleration
Some of the CX5s have been having severe transmission problems, which is exactly what it sounds like your's is experiencing. There have been a couple cases of complete failure, even with under 1000 miles on them. It's possible that it...
Question
With the air on or off my car hesitates at take off and going up any size hill and will not go over 40 in my 2002 Pontiac Bonneville
It is possible that you could have an issue with your crankshaft or camshaft position sensor. Fuel issues may also be the cause of your symptom. It is very likely that trouble codes were stored in your vehicle's powertrain control...
Question
My 1991 Chevy Silverado hesitates at times and stumbles at idle when taking off from a start
If your fuel pressure is low or you have sticking clogged injectors you may get the hesitation and stumble on acceleration but run good at cruise. Also if you have some carbon build up on the valves and throttle body...
Question
Car won't go into gear or it will slowly go into gear but hesitates to pull.
Whether you have a manual transmission or an automatic transmission, if the rpm's are going up and the vehicle is not moving, then the clutch on the manual or the clutches in the automatic are slipping causing the vehicle to...
Question
Car sluggish and jerky in only first gear
Among the possibilities are faults in the throttle position sensor, mass airflow sensor, vacuum leaks, a clogged fuel filter, defective EGR valve or control circuit, and worn out spark plugs and wires. A mechanic would simply investigate these possibilities sequentially...
Question
Engine occasionally cuts out while idling at a stoplight and occasionally hesitates and bucks upon acceleration.
There is a issue with the fuel delivery to your engine. It seems as the fuel pump may be failing. Check the fuel pressure on the fuel rail and see if there is at least 30 psi. If the fuel...
Question
Car is hesitating upon acceleration
Hesitation is not generally caused by transmission faults. With regard to the transmission, if the fluid is "old", it's a good idea to change the fluid and the filter. Simply request transmission fluid service and the responding certified mechanic will...
Question
Is there water in my gas tank?
If the car was sitting for a long time, there could be water in the fuel tank. You can use any fuel water treatment solution to remove any water from the fuel. If the fuel system was treated, then check...
Question
Kia Optima hesitates when in gear. Does not while in park. It has slowly became worse over the course of many months. It still dr
If the transmission is not faulty (e.g., clutches slipping) and thus the problem is engine related, among the possible causes of the hesitation are faults in the throttle position sensor, mass airflow sensor, vacuum leaks, a clogged fuel filter, defective...
Question
2012 Jeep Wrangler hesitates at starting up.
The issue could be the throttle position sensor on the throttle body giving a false reading and causing the engine to hesitate when starting. For the hesitation when driving, that also could be the throttle position sensor, but more like...
Question
My 94 jaguar idles rough, stutters then cuts out. This happens when engine is cold or warm.
Check for a vacuum leak on the engine. A vacuum leak will cause the engine to rough rough and stall out when the engine is cold or hot. If there is no vacuum leak, then the Mass Air Flow Sensor...
Question
Firebird runs for about 20 minutes then starts goosing and stalls. when slowing down and turning it stalls. Installed a new module, a new fuel pump, and a new filter.
Hi there. If your engine has a carburetor, check the float and see if its sticking. The float will not move properly and cause the engine to over fuel and flood the engine which will stall it out. I recommend...
Question
I have a 2004 Buick Rendevouz that doesn't want to start. At first, it had a hesitation problem and it died at low rp
The camshaft position sensor will make the engine run but poorly. Check the crankshaft position sensor to see if its damaged or unplugged. A damaged crankshaft position sensor will cause a no spark condition. If you need further assistance with...
Question
98 Nissan quest jerks, skips, and rpm's bounce, when it warms up.
Hi there. The symptoms sound like the fuel pump relay is getting hot and cutting off the fuel pump. Check the fuel pump relay and see if its getting hot. If the relay is getting hot, then the fuel may...

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