Question about Miscellaneous
Sounds like fuel flow is a probable cause of the problem.
Try draining the carb just in case there's some contaminates in it. Also try the fuel tank. Turn the fuel valve off.... disconnect the fuel line and point it into a glass jar, then turn the valve on and allow 1/2 cup or so to drain. Have a look at the fuel for grit, rust, water, etc. If there is a fuel filter make sure it is clean.
Hook it all back up and give 'er a go! Cheers it it does!
Posted on Apr 09, 2015
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Posted on Jan 02, 2017
Sounds like you're on the right track. A bad TPS and ISC motor sensor
will cause the problems you're experiencing. Your ECM relies on the
readings it gets from the TPS to be sure there is enough air getting to
the engine. If the ECM gets a bad reading and thinks not enough air is
getting to the engine, it will cut the fuel supply, hence causing your
engine to die. Your ISC relies on the reading from the TPS as well.
It detects from the ECM if the throttle plate is closed or not. If
it thinks the throttle plate is fully closed, it will start allowing
air to enter the engine and bypass the throttle plate. If your ECM
starts seeing some unmeasured air coming from ISC and detects the
throttle plate is open (which it may not be due to a bad TPS reading),
the ECM will again cut the fuel supply to avoid the risk of detonation.
So, replace your TPS first and see if that cures your problem. Also, check the resistence readings of your ISC to be sure that is within spec. If your problem still occurs, check your Intake Air Temperature (IAT) sensor in your air filter housing. Be sure your spark plugs, plug wires, and distributor are all in good shape as well. Replace your fuel filter if you haven't done so in the past 2-3 years.
Posted on Jun 23, 2008
you might have a regular key instead of a microchip key. the micro chip key sends the signal to the computer. If you have a regular key it will start and a couple of seconds it will shut off and do it over and over again.
Posted on Oct 12, 2008
I'd suggest the ignition control module, however I'd have a certified mechanic check it out just in case...
Posted on Feb 01, 2009
i and my buddy had the same problem. After findin i had bad ignition wires and spending over 1000 we found a guy that told us that the distrbutor goes bad on these cars. and he replaced at least a 100 of those things. GM is aware of problem and made and improved OPTI SPARK distrbutor. IT will probably cost u a good 600 easily but never had the problem again.
Posted on Sep 17, 2009
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