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Why would a 90 Pontiac Grand Am 2.3 ltr not idle and stall after a tune-up?


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Wiki User
2012-05-27 20:17:40
2012-05-27 20:17:40

IAC valve faulty or needs cleaning. ( Idle air control valve ). fuel filter could be clogged, wet or damaged ignition wires, emissions or engine control system components are faulty.faulty or incorrectly gapped spark plugs also check the plug wires. vacuum leak at intake manifold or plenum or vacuum hoses. good-day !

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does my 1996 pontiac ga stall out in park

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the problem may be that the timing chain or belt has broken

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your intake might be plugged. take out your air filter and see if it plugged. that's the first thing to look at.

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One thing that would cause your 1999 Pontiac Montana to stall at idle is the idle being set too low. You should raise it to see if that fixes the problem.


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