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Old 05-07-2012, 08:44 AM   #11
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You can find info on testing relays here: http://www.backinblackgp.com/
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Old 05-09-2012, 08:05 AM   #12
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I swapped out the relay yesterday and still having starting problems. It started this morning. Had to shut van off for about 5 minutes and then it wouldn't start again. It started up about 5 minutes later. Puzzled!
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Old 05-09-2012, 04:32 PM   #13
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check out the relay socket try to pry on the pins carefully so the relay pins fit tighter and inspect for corrosion
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Old 05-14-2012, 10:56 AM   #14
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I'd look at the fuel pump and the fuel pump ground. Had a similar problem on my Son'* S10. Ended up being a frayed fuel pump ground wire. It was barely making a connection, let the truck sit a while longer and it would start. Took my six weeks to find the problem.

You could also have a fuel pump problem. You need to do a pressure test when it is failing. The tool is around $30 if my memory serves me this morning.
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