Infermittent engine shutoff

plymouth
voyager

#1

Every few months, completely without warning, when city driving, if I remove my foot from gas to turn a corner, for instance, the engine will shut off, oil light comes on, lose power steering. Extremely disconcerting. Have a feeling it’s electrical in nature, but have taken to 5 mechanics who can’t pinpoint the problem. Doesn’t seem related to weather or any other environmental reason. Car runs well otherwise. Any help appreciated. Thanks


#2

At low speed, the idle air control valve (iacv) adds additional air, and the fuel injectors adds additional fuel, as ordered by the engine computer. If the iacv , and the fuel injectors, don’t comply, a mechanic should determine, 1. if they got the orders, 2. if they responded, 3. if their responses were effective. A mechanic is expected to be able to make these determinations.
Some tuneup procedures should be done: spark plugs and wires; check fuel pressure (newish fuel filter); clean MAF (Mass Air Flow) sensor; clean iacv, throttle plate and bore, with Throttle Body Cleaner. Then, start the troubleshooting.
Why do you think it’s electrical? Is electrical power lost to anything?


#3

Thank you so much for your advice. I’ll get those things checked and let you know how it goes.

Deb