Recent content by Nelson
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350 TBI Runs Rough When EGR Valve Opens
Finally fixed it. After all this, it just needed a new EGR valve. I changed the EGR valve several times before, but always with used valves. I noticed that there was some difference between valves in how the truck ran, so I finally purchased a new valve. Now it runs perfectly! I did change one...- Nelson
- Post #7
- Forum: Engine & Performance
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350 TBI Runs Rough When EGR Valve Opens
I put the truck away for the winter, but did find a vacuum line that is getting a little brittle. When I get the truck out next Spring, I'll change the line and report back. I previously installed a new gasket, cleaned mating surfaces, and cleaned the EGR port as best as I could. Will let you...- Nelson
- Post #6
- Forum: Engine & Performance
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350 TBI Runs Rough When EGR Valve Opens
Thanks! Guess I'll just unhook it. I'm not too worried about not having an EGR, I was mainly curious what might have changed (what broke or wore out) since it used to run quite well.- Nelson
- Post #4
- Forum: Engine & Performance
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350 TBI Runs Rough When EGR Valve Opens
Hello, I'm new to the forum. I have a stock 1989 Chevy Suburban 350 TBI with an annoying problem. At low speeds, when the EGR valve opens, the truck runs rough and will almost stall. Its most noticeable if I'm pulling out of a parking lot where I'm driving at low speed with gentle acceleration...- Nelson
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- Replies: 11
- Forum: Engine & Performance
