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Gary, Buick Technician
Category: Buick
Satisfied Customers: 16753
Experience:  15 years master GM tech and mater ASE tech
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Its running very rough with the service engine soon light

Customer Question

Its running very rough with the service engine soon light constantly chiming and flashing. We have recently replaced the coil packs. I found a torched plug wire and commenced to change the front 3 plugs and wires with no change in roughness.
JA: Do you have the trouble code? Do you have a code reader or scan tool?
Customer: unfortunately i do not.
JA: I'll pass this info along to the Buick Mechanic so that he can get you a quick fix. What is the model/year of your Buick?
Customer: 1997 Buick Park Avenue. Not turbo charched.
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: new MSD coil packs and spark plugs and wires.
JA: Anything else you think the mechanic should know?
Customer: it has 103,000 miles on it.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Buick Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Buick
Expert:  Gary replied 1 year ago.

I am sorry for the long wait

at idle if you unplug each fuel injector connector one at a time do ANY you unplug do NOT make a difference in the idle ?

we are looking for any dead cylinders at idle

Expert:  Gary replied 1 year ago.

how are you making out ?

if you have any questions please ask as i do not get credit for my work until you rate me here at Justanswer