What could be wrong if my car is hesitating when accelerating?
What is your question?
Out of nowhere, my car started to hesitate when I began to accelerate. The engine seemed to want to quit instead of increase in power. I added Lucky's fuel injector cleaner with the hope this would help. It didn't. The engine light came on and stayed on but there were no messages. I searched online and found that the problem may be related to the throttle body. I purchased a throttle body cleaner and cleaned it out. Afterwards, the engine light went off, but the car continued to hesitate. I'm not sure what to try next.
If the car has more than 60k on it,and you haven't changed the plugs yet,that would be the easiest place to start.I'd do the fuel filter too.
Beyond that,you need more sophisticated diagnosing.
It has 88,000 miles on it. The fuel filter was changed and system was cleaned in Dec 2010. How can the plugs be the issue if it starts without any problems?
Plugs can function fine on start up and idle,but can act up under the load of acceleration.None of mne have ever lasted the 100k that is indicated-if yours have 88k,it's time.
Does it matter how hard you are trying to accelerate when it starts hesitating. When I say that I mean if you give it more throttle does it still hesitate or can you give it more throttle and get past the hesitation. If so you may have a problem with your throttle position sensor. If there is a glitch in the TPS then it will not set a code but it will give you those problems. The only way to test it is to hook it up to a scope and look at the voltage output. It will have to be a scope that can read in milliseconds for a time scale and its best to test with the car off and slowly giving it throttle till you get to full throttle and slowly back to no throttle and look for a drop off in voltage at a certain point. These cars are notorious for bad TPS sensors.
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It has 88,000 miles on it. The fuel filter was changed and system was cleaned in Dec 2010. How can the plugs be the issue if it starts without any problems?
Plugs can function fine on start up and idle,but can act up under the load of acceleration.None of mne have ever lasted the 100k that is indicated-if yours have 88k,it's time.