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1997 GMC Yukon wont start

Tiny
TDENNY
  • MEMBER
  • 1997 GMC YUKON
Engine Mechanical problem
1997 GMC Yukon V8 Four Wheel Drive Automatic

i started my truck this morning it ran for about 3-4 min. And then died then I tried to restart and it started for a breif second and died. It has a new fuel pump replaced about 5 months ago. It wont start at all now. Please help I am a single mom who needs my truck for work. Thank you very much
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Thursday, December 4th, 2008 AT 4:05 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do below to determine if its fuel or spark problem and then come back

Get a starting fluid or ether and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, cam and crank sensors- Note: If it doesn't apply disregard it
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Thursday, December 4th, 2008 AT 4:16 PM
Tiny
TDENNY
  • MEMBER
  • 2 POSTS
I am sorry I dont have a way to make a donation I am a single mother and I dont have a credit card if you send me an adress maybe I can send a money order. But I appreciate the input. Its late where I am so I am going to check the things you said and I will get back to you tomorrow. So much appreciated. Thank you again TRACY
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Thursday, December 4th, 2008 AT 6:48 PM

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