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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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βˆ™ 2012-05-27 20:17:40

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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 !

2012-05-27 20:17:40
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Q: Why would a 90 Pontiac Grand Am 2.3 ltr not idle and stall after a tune-up?
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