Topic: Sticking throttle plates?
in Forum: C4 Engines
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My 95 has started having a high idle issue. Sometimes it remains too high upon start up. But, sometimes it starts out just fine, but the idle creeps up and by the end of a drive, it is over 1,000. Typically, shutting off the engine and restarting after it's warmed up good will set it back to normal idle, where it stays until it gets cold again. I am thinking the throttle plates maybe sticking open. What is the best way to test this, and then fix the issue? My husband states he keeps the throttle body clean, but I think there must be more to it. Perhaps a sensor read issue?
Edited to more accurately describe issue.
|UPDATED|4/19/2014 5:38:39 PM (AZT)|/UPDATED|
~Laurie~
1985 and 1995 coupes:

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Vette(s): Black 1979 L-82
Black 1996 LT1
Black 1999 Coupe
throttle body and throttle blades have to be cleaned and then check for ridge inside of throttle body.
MAFS has to be gently cleaned...especially if a reusable air filter is being used (air Raid/ K&N)
All cleaners are specific and bought at parts stores.
Reply back if the easy stuff don't work.
Good luck.
Strats-N-Vettes said:
throttle body and throttle blades have to be cleaned and then check for ridge inside of throttle body.
MAFS has to be gently cleaned...especially if a reusable air filter is being used (air Raid/ K&N)
All cleaners are specific and bought at parts stores.
Reply back if the easy stuff don't work.
Good luck.
Agree with Strat-N-Vettes. If you over oil the reusable filters excess oil can foul out the MAFS.
in Forum: C4 Engines
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