2001 Chevy Blazer FUEL DELIVERY/HARD START

2001 CHEVROLET BLAZER
147,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JCHAVEZ2007
  • MEMBER
  • 1 POST
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!!!
Oct 7, 2010 at 6:43 PM
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BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
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
Oct 7, 2010 at 8:38 PM
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