1988 Dodge Caravan engine doesnt idle right

280,000 MILES • 6 CYL • AWD • AUTOMATIC
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FLEAANDSUGAR
  • MEMBER
  • 2 POSTS
engine revs up and then it idles down and dies. i already did a tune up. when it idles down if i push the gas pedal down it doesnt die. it has even died when we were driving down the highway.
May 23, 2008 at 7:27 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
engine revs up and then it idles down and dies. Duplicate the problem when it does-immediately do below

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.

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
May 23, 2008 at 7:46 AM
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