1994 GMC Jimmy

Tiny
RLLOYD03
  • MEMBER
  • 1994 GMC JIMMY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
(50,000 REPLACED ENGINE) 2-CARPROS, ABOUT A YEAR, 15 MONTHS AGO I PEPLACED MY FUEL PUMP. ABOUT 3 WEEKS AGO I WOULD HAVE TROUBLE STARTING IN THE MORNING. AFTER REPEATED TRY'S IT WOULD FINALLY START. THEN 2 WEEKS AGO WOULDN'T START. AFTER 3 OR 4 DAYS NOT ATTEMPTING TO START IT FIRED RIGHT UP. NOW IT WILL START BUT WILL NOT RE-START IMMEDIATELY AFTER ENGING SHUT OFF. WILL START THE NEXT DAY IMMEDIATELY AND RUN AS LONG AS IT'S NOT SHUT OFF. REMOVED PLUG WIRE TO CHECK FOR FIRE, CHECKED OK. CAN YOU HELP ME?
Thursday, January 1st, 2009 AT 3:29 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Can you check for codes? What is the fuel pressure? You need a pressure gage to check pressure. What is your vin, your vehicle came with either, cpi or tbi, The fuel pressure specs are different depending. The cpi system, key on engine off spec--55 to 61, idling-- 36 to 43. The TBI system pressure around 10.
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Friday, January 2nd, 2009 AT 12:58 PM

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