Re: 91 Burb w/ 7.4L

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Posted by 92sub ( on 06:55:33 07/26/07

In Reply to: Re: 91 Burb w/ 7.4L posted by PeterW

How did you clean the TBI MAP sensor port?
Normally these gunk up all the passages at the TBI base plate so if you didn't remove your TBI assembly and clean it that way you might want to.
I'd at least pull off the PCV hose connection and check that for buildup as well. If it's also plugged, I'd pull the TBI off the manifold and clean it that way.

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