HELP....PLEASE!!!!!!!!!!!!!!!! Cranks...won't start. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-18-2003, 04:38 PM   #1
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Default HELP....PLEASE!!!!!!!!!!!!!!!! Cranks...won't start.

I'm the fool who cleaned his evap core and then the car would crank but not start. Had to have the car towed to my friends shop. He is a good mechanic. Here are the symptoms. Car cranks, runs for about 5 secs...then dies. Car has spark but loses injector pulse. He tried a new computer and ignition module....checked all grounds and power...all is good. He wanted me to post to you Bonnie gurus to ask if anything lies between the computer and injector(*). We really need some help guys...thanks.
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Old 07-18-2003, 04:53 PM   #2
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Check the fuel pressure at the rail. There'* a fitting for that purpose. Get a scantool on that car! It'll tell you everything you need to know. Beg, borrow or steal one.
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Old 07-19-2003, 03:52 PM   #3
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Fuel pressure is good...he checked that already.
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Old 07-19-2003, 04:55 PM   #4
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Anything other than a scantool would be a waste of time at this point.
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Old 07-19-2003, 10:53 PM   #5
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When you cleaned your Evap Core, did you make sure ALL the relays were position properly again? A loose relay connection can cause these symptoms too! Check your connectors too for any that may have been loosened by your actions during either the dismantling stage or re-assembly stage.
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Old 07-20-2003, 12:08 AM   #6
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He has a snap-on scanner and it'* not telling him much. I was very careful when I put the relay center back on and that was one of the first things he checked since the prob seemed to have occured after I removed it and put it back on. He did mention the crank sensor but said he did not think it was that though he said he may change it anyway. He is going to look into it further this week....I'll keep you guys posted and thanks for the suggestions...keep em coming...we need all we can get.
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Old 07-20-2003, 12:27 AM   #7
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As soon as you can get those codes, it will be so much easier to direct you towards a solution. This may just be some incentive to get a decent code reader. They pay for themselves once you need it.

It would be a step backwards to advise you at this point. Any mis-diagnosis may complicate things. Good luck, we'll wait patiently and see what you are throwing
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Old 07-21-2003, 09:05 AM   #8
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Yes...it is getting spark at the coils. He is trying the scan tool again this morning to check for stored codes...the crank sensor is his next item..I'll keep you posted. Thanks guys.
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Old 07-23-2003, 09:05 AM   #9
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He changed the crank sensor...still no good. No stored codes on computer to help him either. HELP!!!!. Day 10 with no car.
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Old 07-23-2003, 09:13 AM   #10
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If you pulled the fuse/relay box, did you make sure everything was reconneted right?

Just a thought
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