90 3.8 SSE intermitant stalling - PLEASE HELP ME - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-13-2007, 11:52 AM   #1
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Default 90 3.8 SSE intermitant stalling - PLEASE HELP ME

this car has been to 2 shops and none can fix it. the car only has 75,000 on it. it has had a new cam and crank sensor, new coil, plugs/wires, ign module, mass air cleaned, TP sensor checked. The car runs great and smooth but once in a while it just shuts off like someone turned off the key. It will start right back up, but sometimes it pops and misses while trying to start it back up after it shuts off on its own, other times it starts back up just fine. The shops said they cannot figure it out and actually gave the money back and said to keep the new parts they put on it with the condition that I tell them what was wrong with it when I find out, so they could learn something new. Also, I had a fuel pressure guage on it in the driveway while it was running, then it just shut off on its own. The guage still read 41psi while it shut off. I double checked the crank sensor and it is not touching any of the tabs, anywhere.
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Old 11-13-2007, 12:45 PM   #2
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who installed the crank sensor? When I installed mine it ran fine for awhile and then started the same thing. I found out it was just barely hitting the tabs on the balancer and eventually it rubbed into the sensor.

Also check the fuel pressure regulator. It is on the fuel rail with a vacuum line going to it. They are pretty cheap. Just remove the bolt and it pulls right out (with a little tugging).
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Old 11-14-2007, 11:55 AM   #3
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First thing we find is the battery cables and grounds need a good cleaning on most stalling problems. Second I would check the ICM connector. Clean it, tighten up on the sockets, and clean the grounds attached to the underside of it.
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