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wyattglock · 11-20-2010, 05:03 PM

It could be an ignition coil. I have a similar problem with my 454 tbi. I have replaced the plugs, wires, and ignition module. That seemed to help a lot. I tried swapping my friends coil from his 87 Jimmy onto my truck and that smoothed it out all together. So this week I am going to replace the coil and go from there.

11-20-2010, 05:03 PM	#5
wyattglock Registered User Join Date: Jul 2010 Location: Lafayette, IN Posts: 621	Re: 87 350 TBI guys help!!! It could be an ignition coil. I have a similar problem with my 454 tbi. I have replaced the plugs, wires, and ignition module. That seemed to help a lot. I tried swapping my friends coil from his 87 Jimmy onto my truck and that smoothed it out all together. So this week I am going to replace the coil and go from there.