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I have and 86 pontiac 6000 and i just changed all the throttle body gasgets and the car is idleing to high

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  • Pontiac Master
  • 2,413 Answers

Hello Mary Roussell,

IF the HIGH IDLE is a new condition (post gasket)

You need to look at all ends of the throttle cable
and make sure the CABLE SHEATH in FULLY
SEATED at the ends... Most likely the end that was
slack where you were working (but ALSO check
inside the firewall (top of the accelerator peddle).

HOWEVER... if the word "STILL"...
As in "STILL... idling to high"... was left out

You are looking at the NOTORIOUS GM
cold IDLE valve** issue... It is famous for making
FI cars with automatic trannys to STALL

Check TECHNICAL SERVICE BULLETINS (39 TSBs)
at BBB Industries website (FREE, registration required).
((contains CRITICAL throttle specifications as well)).

Note:
** cold IDLE valve mimics the CHOKE function.

Free wiring diagrams & TSBs
BBB Industries Premium Alternators Starters Power Steering Products

Carnac the Magnificent

Posted on Apr 16, 2017

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