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Old 05-22-2015, 01:10 PM   #1
775stepside
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Join Date: Mar 2014
Location: Elko, nevada
Posts: 286
89 Silverado 350 misfire

Hey guys I have a weird misfire I'm getting, I recently put new heads, plugs, wires, oil pan gasket, oil filter housing o rings, belt tensioner. I retimed the dizzy after I finished putting in the new heads.

When I was cleaning parts when I removed the heads(keep in mind they were filled with sludge) and the intake had a lot of carbon build up. The wholes going to the egr on the intake were completely plugged so I cleaned it up, I never removed or replaced the egr valve. So I'm thinking this is my problem. Once the truck warms up and I slightly give it gas it misfires. (ONLY WHEN WARMED UP) it also does it at a stop when your trying to go.

HERES A VIDEO OF A BETTER EXPLANATION. http://youtu.be/OU6J-dWvRdI
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