My 1999 chevy blazer runs fine when cold but 20 miles or so the rpm gauge starts turning off and on... i can feel power lessening when its turning off after a while it turns off compleetly but car still runs just not as well
Cars & Trucks - Chevrolet - Blazer - 1999 Chevrolet Blazer
Answers & Comments
Hook up a fuel pressure gauge an see if you are not loosing fuel pressure causing this running problem. Hook it up to the fuel rail with a long enough hose to locate the gauge where you can watch it while you are driving. If you are loosing pressure then check for fuel resistance in the line, fuel pressure regulator or fuel pump going bad.