1991 buick park avenue car jus shut off wait an hour its cranks up untill it does it again..i took it to a machanic shop fuel pressure reading 40 psi ...what will be the next step

Asked by Melvin1978 Jan 02, 2019 at 04:53 PM about the 1991 Buick Park Avenue FWD

Question type: Maintenance & Repair

1 Answer

27,570

With intermittent issues, do testing when problem is ongoing. Make sure battery has a full charge and connections all good. If it cranks good but won't start, have a helper crank it while visually check for spark at the plugs and fuel injector pulse? Any applicable trouble codes? I have seen intermittent rpm signals, that will drive you nuts. sometimes it works and sometimes it doesn't. That signal comes from crank sensor. I don't know if crank sensor is faulty? Just a thought.

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