Question about 1994 GMC Jimmy
Have you checked for spark when it does not want to restart ?
Posted on Jun 18, 2015
Could be a bad coil, or ignition module right by the coil. Both will cause this. If you loose fuel pressure, it would be the pump. But pumps will usually start chugging before the engine dies. Most times it is the coil.
Posted on Jun 17, 2015
SOURCE: cold start valve problem
if you have an electric cold start valve make sure to unplug it and if keeps apling fuel with electrical conector unpluged that means the valve is not good, but if not then you have an electronic problem, possible a bad cold start sensor or cold start module or cicuit problem, and might be a time to take it to an electrical shop
Posted on Jun 17, 2008
did you do a fuel pressure test? if you havent do it its cheep an at least you can elimanate that. if thats not an issue, then there is only two other things crank sensor, and if there is one cam sensor.
Posted on Feb 02, 2009
i think if you checked the sparking plugs and map sensors then check your distributer its maybe not delivering the current nedded to perform the spark to some of the cylinders
Posted on May 30, 2009
Did you ever get to the bottom of this problem? My car has the same codes- dealer says it might be the fuel pump relay. Wondering what you found out?
Posted on Jul 28, 2010
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