1999 Chevy Suburban Crank/ no start

Tiny
BONANNO
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 125,000 MILES
99 suburban will crank but wont start. Had this problem before and went crazy trying to fix it. Replaced fuel pump 3 time over the 3 yrs. I owned it. Finally replaced crank sensor and had no problem, for a year. Now car will start and go for a bout 10 miles and shut down. Then wont start. Wait 15 minutes then starts and dies. Any ideas? Could it be crank sensor again?
Saturday, October 30th, 2010 AT 9:43 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
When the problem occurs, if it cranks good but won't start, have a helper crank it while you visually check for spark at the plugs. You can carry a known good spark plug or spark tester, then just pull a plug wire, place tester in the boot, ground metal part of tester to metal part of engine, watch for spark.

If you have spark everywhere, use a gage and check fuel pressure. Key on engine off, 60--66 psi for spider fuel system. Sometimes the fuel poppets need cleaning. Any applicable trouble codes?
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Friday, October 4th, 2019 AT 3:46 PM

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