HELP....PLEASE!!!!!!!!!!!!!!!! Cranks...won't start. - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-28-2003, 05:15 PM   #31
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Every fuse in the car was checked...all good..camshaft sensor was changed today...still no go.
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Old 07-28-2003, 05:29 PM   #32
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I'm totally out of answers on this one.

Time for General Motors to see it, I think we've covered most of the bases in regards to what you have described. Time to bite the bullet
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Old 07-28-2003, 05:43 PM   #33
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What I don't get is how cleaning an evap core could have gone so horribly wrong?
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Old 07-28-2003, 05:53 PM   #34
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That would be more common in belt situations. (ie stretching etc) but in a timing chain situation, its hard to believe he is getting nothing out of his car.

Tonyg, repeat for us, is the car turning over? cranking? starting then dying? if so how long is it on for?

Take it GM and let them hook it up to their computers and diagnostic equipment. Its at the point now where we are taking shots in the dark.
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Old 07-28-2003, 06:57 PM   #35
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Yes, the car cranks, turns over...on a good day it may run for 3 secs then shuts off. My mechanic has enlisted the help of a GM car electronics specialist who will hopefully be able to diagnose something tomorrow. My mechanic believes he has eliminated everything mechanical from the equation. I'll keep you guys posted...keep throwing suggestions out to us...we will try anything!!!!
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Old 07-29-2003, 11:38 AM   #36
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Quote:
Originally Posted by jr's3800
But in a pushrod engine with a timming chain the chain can jump a notch and throw the timming enough for the computer to not be able to start and or keep running... The engine would get fire and fuel all at the wrong time and just turn over constantly with no nothing.... Lifeless... But we are all lost on the matter for sure... It time for the GM specialists t step in and have a good look... The car needs to be put on life support to see whats going on...
Agree with all the above...

Question: When the engine is first cranked, am I right in thinking that it fires all its injectors once since it doesn't know (yet) exactly where the crankshaft is? Could our friend be getting his three seconds of running from that initial charge, which should be (but isn't) followed by actual controlled injections after that?
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Old 07-29-2003, 03:11 PM   #37
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CAR IS RUNNING!!!! It was the VATS system!!! The guy my mechanic enlisted to help him with the problem worked for GM for 30 years and figured it out. I will post details later. I am ecstatic!!!!
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Old 07-29-2003, 03:15 PM   #38
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Quote:
Originally Posted by tonyg
CAR IS RUNNING!!!! It was the VATS system!!! The guy my mechanic enlisted to help him with the problem worked for GM for 30 years and figured it out. I will post details later. I am ecstatic!!!!
Huh... well, it does control the starter enable relay and the fuel pump, so apparently you were getting the starter but not the fuel. The VATS relays live in the rack mount directly above where you were squirting; you _sure_ you didn't knock one of them out? You didn't get a solid "Security" light on the dash at all?

Eagerly awaiting details...
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Old 07-29-2003, 03:29 PM   #39
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So..nothing was really broken then. Vehicle Anti Theft System works like a charm.

Nice to hear its back up and running for you once again
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