Drove it yesterday, doesn't start today? 97 se sc - Page 2 - 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 06-05-2006, 08:48 PM   #11
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thanks ill havr to do later I have to fix dinner now... james
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Old 06-05-2006, 08:59 PM   #12
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I believe you'll also want to check for corrosion underneath the coils. We are quickly getting to the point where we are going to need someone else to jump in & guide you in the right direction.
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Old 06-06-2006, 12:22 AM   #13
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How do the coils come up?
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Old 06-06-2006, 12:34 AM   #14
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the coils should have two screws on them that hold them in place, just take it slow and do one at a time so theres no confusion, and make you sure you keep the wires that are plugged onto the coils straight.

to check your fuel pressure you need to first locate the fuel rail, which is usually somewhat gold colored and runs around the top of the engine...somewhere on that fuel rail is the Schrader valve which looks very similar to a tire valve, it even has a little plastic screw on cap.

The best way to check it is to buy a pressure checking tool, available at most local auto parts stores, and follow the instructions on that.

The other way to just make sure that you HAVE pressure is to turn your key to the ON position, dont start it, and then press on that valve like you would if you were letting air out of a tire...now be careful, have a rag positioned to catch the fuel that hopefully will come out of there under a lot of pressure, you might even want to put on some safety glasses just to be on the safe side.
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Old 06-06-2006, 12:44 AM   #15
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Wonderful. I have a go at it tommorow. Sounds reasonable. heck anything after changing that darn blower moter should be easy. That was hard!!

I did notice that my number three had some corrosion on the connection to the spark plug wire and the coil. Ill check it all out tommorow.

Once I get the coil off if I see corosion do I just clean it off an hope it fires? Something bigger might be wrong since I got no spark form the front three spark plugs...........Hmmm
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Old 06-06-2006, 01:16 AM   #16
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It would be unlikely that all 3 coils have gone bad. It'* still a good idea to clean things up however, especially as you have found corrosion. The most likely culprits for a no spark condition would be the ignition control module (ICM) or the crankshaft position sensor. Places like Autozone will test the ICM, but the results are questionable at best. About the only thing you could be fairly sure of is if they tell you it is bad. Best way to test is to swap it out with a good one. Know anyone you can swap one with?

The CPS is a PITA to get at as you have to pull the harmonic balancer. Often failures of the CPS start with intermittent starting problems.
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Old 06-06-2006, 09:44 AM   #17
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Nope, I don't know anyone to swap with. Ive been trying to get people to join this club here in Texas, but I think the smog or something must be getting to their heads.

Ok, going to clean things and change spark plug wires later today. If that doesnt work Ill have to take another step.

Where is the ignition control moduale at? As far as the crank shaft sensor. I had it replaced about a year ago.

Hey. I just remembered this. About 3 days ago I had a car wash. And the car wash did some undercarridge spray. And I swore I heard water in my ac blower motor but wasnt sure. Could water play into this anyhow? Forgot all about that.... It didnt run abnormal or anything that whole day. I then parked it and tried to start it three days later. That'* when this all happened.
Interesting.....
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Old 06-06-2006, 09:50 AM   #18
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Whoa.....lol

Sorry I'm coming in late here. Please..let'* not ever hold a spark plug wire when the car is running or cranking. You can get ZAPPED bad.

The bolts for the coils hold the coils to the ICM. The ICM is the thin black part under the coils with the wiring going to it. The bolts on the coils are 5.5mm
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Old 06-06-2006, 09:55 AM   #19
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Yeah I got shocked once before and it smarted real good. I can hold it by the rubber and watch for a spark can't I ?

So let me get this right. I can take off this ICM and the auto shop can check it out for me?
Can I get one off a salvage yard car if they are to expensive new?

I should probobly leave the spark plug wires connected when I check this to shouldnt I ? I can see how they could get all messed up.

I think Ill go to the salvage yard today or tommorow. ( after I check the ICM) At the parts store.
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Old 06-06-2006, 09:56 AM   #20
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Bill, I always see you on here. What do you do? Ae you retired. I mean I appriciate the help greatly. Im just wowed by your availability......
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