Having problems with your 1993 Buick LeSabre ?

My biuck has a mis i hear it from the tail pipe then while idiling the service engine light comes on then when when i drive it the light goes of is that the coil pack i changed the spark plugs.

Posted / edited by AnonymousUser on : 21-09-2020

Answers :

This could be from a faulty fuel injector. What I would do, is when the engine is running, pull off 1 injector connector at a time to see which one is bad. When you pull off the connector, engine rpms will drop a lot. If it doesn't, that would be your bad one.
Repair Help & Product Troubleshooting for 1993 Buick LeSabre

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