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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 10-13-2007, 12:41 AM   #1
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Default This car is gonna kill me....

Hey all I got a little challenge for ya.

My bonny is haven a starting issue sort of. It happened back in may 07 when my mom used this car for work she would go to leave and her car wouldn't start just sit there and crank. So she called me and id show up 10 or 15 minutes later and start it up just fine. This happened several times. No trouble codes found and no check engine light. So we looked at spark plugs they 3 were gummy and one plug was not even tight.

So we replaced plugs and wires. Didn't change the problem. So we lookin at the fuel pressure and pump which had been replaced a year or 2 ago. They were all in spec even when the car wouldn't start. Then we got a code for a bad o2 sensor, replaced that. Still no effect. We looked at the IAC and busted it in the process replaced that.

Took it to the auto shop and the tech said to change the cam position sensor. Changed it no effect. He said replace the ignition module replaced it and it sounded better then the water pump blew and then it died.

So now we replace the pump and finally listen to my dad and replace the PCM which was just replaced a year or 2 ago. Replace it and no effect. So now my friend looks at it and say the chip in the key looks bad replaced it and NO EFFECT. So now my dad says it looks like igniton switch or the pass key module. so far haven't replaced those.

So last weekend got to lookin at the battery and it had a ton on corrsion on the ground cable. I cleaned it all up started it up and the engine sounded wonderful. Drove 20 miles stoping and shutting off the engine and it started every time so it got rid of the stalling problem and what I thought the starting problem. Later that day mom took it out to town did a few errends and went to start it same deal. Waited 20 mins and it started up. But now it had a check engine light on. Got it home scaned it and it said I had low voltage to the O2 sensor ???? I test it and it has 14.7 ohms it passed, but when I test the continunity back to the PCM there is no continunity . So im lookin at that right now tryin to find a short to ground Between the O2 and PCM. So lol any suggestions? O and BTW if ur thinkin Crank sensor we replaced that a year ago but I was talkin to the dealer about my problems and he gave me one to put in there so what the hell I will put it in there too.

Sorry this is sooooo long but this all happend in a period of may 07 to Oct 07.
Thanks for takin the time to read this.
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Old 10-13-2007, 01:07 AM   #2
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Sounds like a bad crank sensor.

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