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Hesitation Definition: When the throttle peddle is pressed the engine fails to respond, and may stall. For this to be true it is idling correct.
No, a failed, stuck or gummed up IAC will not cause the hesitation.
The gummed up may if it has blocked any of the small passages in the throttle body.
It is much more likely you have a bad plug, plug wire, Oxygen sensor, Temp sensor, Bad MAP sensor or other problem.
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∙ 13y ago
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What causes the car to hesitate when accelerating at speeds below 20mph?
Bad speed sensors can cause the car to hesitate when accelerating at speeds below 20 mph. The blockage of the air filters can also cause the car to hesitate when accelerating at speeds below 20 mph.
What can cause a car to shut off?
it can be different things but u can start checking with IAC or the fuel
What could cause a car to hesitate and shudder on acceleration?
Could be, time for a tune up.
What would cause your car to hesitate before it shifts into gear The car is an automatic Oldsmobile?
low trans fluid level.
Would a IAC sensor make a car stall while driving?
When driving the IAC does not do anything because the car is not at an idle
Would the Idle Air Control sensor cause a car to run lean?
No,the air bypassed through the iac will be measured by mass air flow sensor.
Why the 1989 oldmobil hesitate?
There are several things that can cause your 1989 Oldsmobile to hesitate. Dirty fuel injectors are the most common cause.
Would a bad intake gasket cause your car to hesitate?
Quite possibly, yes. But so could about four dozen other things.
What does a bad IAC cause?
the engine to stall and surge at idle
What does the iac do on a Chevy vortec?
the iac is controlled by the computer and adjusts the air flow needed by the engine, hence idle air control. if the iac is defective and does not seat properly, it will cause a high idle
Will the engine smoke if the iac valve is failing?
It did for my civic when my iac valve was disconnected. Car ran like crap also when put back together car ran better and not more smoke, I would get that checked out check your engine codes it will let you know if the iac is starting to malfunction
How much does an iac valve cost?
The cost for an IAC valve varies based on the car. Generally, it will cost between $30 and $60, depending on where it is bought.
