2001 Chevrolet Blazer Q&A
2001 Chevrolet Blazer Question: this vehicle runs good when cold. when it gets up to 180 it starts to run bad.
Need scan test, fuel pressure test with engine running and eng. off to check system for leak down. When all the sensors were changed was the temp. SENSOR changed as well? - pushrod
what size motor? if 4.3L the fuel injection spider and regulator comes to mind. gm had issue with them going bad and causing runability isssue and flooding - globalhelper