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1994 GMC Safari

Tiny
BUD61261
  • MEMBER
  • 1994 GMC SAFARI
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
MY VAN WILL START AND RUN FINE. I DRIVE IT 5 MILES, SHUT IT OFF AND WON'T START. USUALLY IF I WAIT 15 OR 20 MIN. IT WILL START. HAD THE FUEL PUMP REPLACED YESTERDAY AND THE PICK UP MODULE TODAY. LET IT IDLE FOR A WHILE AND KEPT STARTING IT AND SEEMED FINE. WHEN I WENT TO LEAVE IT WOULDN'T START. WAITED A WHILE AND IT STARTED SEVERAL TIMES IN A ROW. DROVE IT HOME AND CUT OUT WHILE DRIVING. WAITED AND IT STARTED RIGHT UP. THERE ARE NO ENGINE LIGHTS ON. CAN YOU PLEASE HELP?
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Saturday, May 23rd, 2009 AT 11:45 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
When it wont start test for spark and gas we need to know whats not working!
Start with the basics, and work your way up, Last tune up was? Wires plugs ALL filters? If all that is ok, check for a stuck EGR, then test fuel pump pressure, If it won't restart, determine what's missing, the engine needs three things to run, Spark at all plugs, gas to all cylinders, and compression in all cylinders, tho an engine may run lacking one in one cylinder, it won't run very well!
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
and this one!
https://www.2carpros.com/dia/index.htm
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Sunday, May 24th, 2009 AT 9:21 AM
Tiny
BUD61261
  • MEMBER
  • 2 POSTS
WHEN VEHICLE HAS BEEN RUNNING FOR A WHILE AND I SHUT IT OFF IT WILL RESTART RIGHT AWAY. BUT IF I WAIT 5 OR 10 MIN IT IS NOT SENDING SPARK TO THE COIL. AFTER IT COOLS DOWN IT WILL. REPLACED THE MODULE AND THE COIL. WHAT NEXT?
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Sunday, May 24th, 2009 AT 3:13 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
http://www.youtube.com/watch?v=eGpVXCJBMGM
Have a look at Jakes video, might help you!
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Monday, May 25th, 2009 AT 7:14 AM

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