Run's good when cold, after warm up starts to load up and miss, punch the gas and it goes, this problem comes and goes

Asked by Mar 03, 2014 at 08:17 PM about the 1990 Chevrolet Blazer 4WD

Question type: Maintenance & Repair

Replaced temp sender that controls rich/ lean, no help. Will map sensor cause this problem? Also this is a repuilt motor, 35000

1 Answer

11,205

Check the EGR valve. Clean or replace if necessary.

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