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1999 Chevy Suburban stalling out

Tiny
KJSBRITTANYS
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
I had the fuel pump replaced but it has the same issue it had prior. The check gauge lights will flicker and all my guages will bounce around and the vehicle will stall. In the past it would restart after 10-15 minutes, now it will not resart at all.
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Sunday, May 16th, 2010 AT 12:09 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Now it will not resart at all.

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-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, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Monday, May 17th, 2010 AT 1:10 AM
Tiny
KJSBRITTANYS
  • MEMBER
  • 2 POSTS
It runs fine cool, but if its hot out I can drive for about 20 minutes and it dies and won't restart for hours. Everything suggested was checked out.
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Tuesday, May 25th, 2010 AT 5:45 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Everything suggested was checked out. Last place to test is the ignition switch could be failing
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Tuesday, May 25th, 2010 AT 5:48 PM

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