CHEVY FUEL DELIVERY/HARD START

2001 Chevrolet Blazer

Tiny

jchavez2007

October, 7, 2010 AT 6:43 PM

Engine Mechanical problem
2001 Chevy Blazer 6 cyl Two Wheel Drive Automatic 147000 miles

THE PROBLEM I'M HAVING IS LONG CRANKING/HARD STARTING WHEN VEHICLE HAS BEEN SITTING FOR AT LEAST 30 MINUTES. LESS THAN 30 MINUTES IT STARTS EVERYTIME. CHECKED SPARK AND OK. I CHECKED FUEL PRESSURE WITH GAUGE AND NOTICED WHILE CRANKING THE ENGINE AFTER IT SITS FOR A WHILE, FUEL PRESSURE IS BETWEEN 40-45 PSI. AND ALL OF A SUDDEN CRANKING RPM'S RISE AND FUEL PRESSURE JUMPS TO 60 PSI. AND ENGINE STARTS. WHAT DO THINK IT MIGHT BE? THANKS!

FOUND 3594 RELATED QUESTIONS

1991 Hard To Start

41 ANSWERS
4 IMAGES

Engine Does Not Stay Running

33 ANSWERS
8 IMAGES

1 Answer

Tiny

BMRFIXIT

October, 7, 2010 AT 8:38 PM

Need a new fuel pump
fuel pressure is low
any reading under 52 is low and engine will not start or will cause a hard start

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