1993 GMC Vandura 2500 Q&A
1993 GMC Vandura 2500 Question: starting problem
Van stopped running suddenly. can not start it. Previously two weeks before i also had a starting problem but discovered the distributor cap and rotor were very bad. Replaced them and it started up first time. However i may have crossed a couple of plug wires as it was running bad i.e.missing for a couple of weeks until it stopped running again. Now i replaced all the plug wires and am not sure if the wires are in the right order. My Chilton book is not explicit in where to start the firing order on the top of the distributor cap so now i am all messed up and uncertain where to start. The second part of this problem may or may not be associated with the correct placement of the wires as when i turn the ignition on it turns over, does not fire though gas is flowing and when i turn the key in the ignition off the engine keeps on turning over until i disconnect the battery. When it stopped running i checked the spark on one of the plugs and there was no spark. I have had the alternator checked ,it is OK. I replaced the ignition switch and had the distributor module checked and that is OK. Can not see a crossed wire any where and still have to check the starter solenoid. Any advice or recomendations would be appreciated. - stras
There is some free service information available from AutoZone - www.autozone.com. They may be able to help with the location of #1 cylinder on the distributor cap. If they are of no help you can try the following: With the #1 cylinder on top dead center on the compression stroke the distributor rotor should be pointing to #1 cylinder. Remove the distributor cap and see which tower the rotor is pointing to and that should be #1. You can then set your wires from there. For the engine to continue to turn over after you release the ignition switch something must be continuing to power the starter. In order to check the circuit you will need to disconnect the smaller purple wire from the starter. With the purple wire disconnected, you should have power on that wire only with the ignition in the "crank" position. If you have power at any other time you will need to check the rest of the circuit to find out why. If the tests on the purple wire are OK then the fault may be with the starter. - Russ
If I push gas just little it will run slowly for wile and Quit. All started when I Started with gas pedal down little last time. Thanks, Larry
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