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Topic: Sticking throttle plates?

in Forum: C4 Engines

Sticking throttle plates?

Posted: 4/19/14 5:38pm Message 1 of 3
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Sacramento, CA - USA
Joined: 4/11/2013
Posts: 109
Vette(s): 1995 Coupe, Automatic, Dark Red Metallic, 1G1YY22P6S5100376 1985 Coupe, Automatic, Gold Metallic, 1G1YY0783F5114974
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:
1985 and 1995 coupes
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Re: Sticking throttle plates?

Posted: 4/21/14 10:44pm Message 2 of 3
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Joined: 3/20/2009
Posts: 611
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.



Re: Sticking throttle plates?

Posted: 5/8/14 3:57am Message 3 of 3
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Linden, PA - USA
Joined: 3/20/2009
Posts: 13
Vette(s): 1993 Artic White Coupe
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.



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