Question about 2000 Ford Mustang

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2000 ford mustang base model. When the A/C is put on, the rpms will shoot way up. Car also does not start right up, it cranks for 3-4 seconds and then starts right up. sometimes when at a stop light it will just shudder for no reason

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When my egr valve went bad i would turn my air on and hear a bang like something was being force open or close do to poor vacuum. it would hesitate to start and sputter at stop lights then the idle would jump up then really low. once i changed the egr valve everthing was normal. it seems to rust out then get stuck close. the damn electric air pump is used in the first 10-15 seconds of start up and in wet climates will retain water wich then will rust these delicate parts like the egr valve.55 dollar solution at auto store 30min job

Posted on Feb 13, 2011


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Long cranking before starting

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