Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
The issue you have described here sounds like the common fault of one or more of the injector nozzles allowing to much fuel into the engine at certain engine speeds or the fuel injection pump itself is at fault needing replaced.Both of these are common issues for this model here and for the condition the vehicle has right now.If you have not had the injector nozzles checked/tested as well as the injection pump this needs done to see if a fault can be located and then it can be repaired from there to correct this issue.
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