1994 Chevy Van wont start or stay running

Tiny
CHUCK FOSTER
  • MEMBER
  • 1994 CHEVROLET VAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
Problem started without warning. Must floor accelerator to start, but dies quickly. Little power. Backfires and smells of gas. Almost like its flooded. Plugs & wires are fairly new. All fluids normal. Battery disconnect to reset computer made no difference.
Sunday, June 29th, 2008 AT 3:30 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light On prior to this problem?

If the engine's condition is in tip top shape-do below to determine if its fuel or spark problem that's if its cranking over and refuses to start

Get a carb cleaner 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 problem, check the fuel pressure to rule out the 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, distributor pick-up coil, ignition control module, cam and crank sensors-

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
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Sunday, June 29th, 2008 AT 4:11 PM

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