Car no go any more :( After a noise it stalled........ - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-27-2005, 12:39 AM   #1
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Default Car no go any more :( After a noise it stalled........

Hey, Its been a while but I'm back and in need of some major experiance. So I trade my Toro for the Financies' Honda and she was leaving her Parents house and said it made a clunk or pop ora "something setting in place" noise and then she noticedit was stalled... Well upon further inspection she noticed that the serpintine belt was shreded and that was that. after putting some gas in it thinking it ran out prolly like 20 mins later it almost started but that was it.. it sputtered and then nothing.. now its home and I have tried my hand at it and as far as I can tell the fuel pump I put in it 2 years ago is still working but I removed the number 1 plug wire and stuck a large gauge wire in it to see if it would spark aginst the plug tip and nothing..

I checked the onboard diagnostics and did not see any codes set except for a no r12 code andthe gear select problem that happens all the time if your in between gears when choosinf for to long...


So re-cap....
appears to be no spark, fuel pump sounds great(2yrs old) plugs newer(winter) original wires, original coil paks, new harmonic balencer, all filters newer Cranks great but no attempt to start, No codes set.
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Old 08-27-2005, 12:42 AM   #2
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Check your coil packs and ICM connections.
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Old 08-27-2005, 12:47 AM   #3
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whoda whada??? The ICM connections are where ish? and how does one check the coil packs.. I have a dmm and what not If all else take my weddin money and upgrade to an L67
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Old 08-27-2005, 12:48 AM   #4
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Quote:
Originally Posted by delta88
whoda whada??? The ICM connections are where ish? and how does one check the coil packs.. I have a dmm and what not If all else take my weddin money and upgrade to an L67
there'* a way to end up on the wrong side of the little lady
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Old 08-27-2005, 03:10 AM   #5
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First of all, the ICM connection, and the location of stuff: The coil is what all of the plug wires attach to. That might be bad. The coil sits on the Ignition Control Module (ICM). That might be bad. The only really good way to test either of those is to swap in a known good unit and see if it runs. The problem could be the wire harness connection to the ICM. This connector bolts to the ICM in the middle. Try removing and reinstalling it once or twice. Sometimes they lose contact, apparently. If that doesn't do it, start looking for a new coil unit or ICM to test.

If you do have to look for the coil/ICM, you might also consider upgrading to the Type II (Delco) type ignition system (assuming that you don't have it yet). It'* a better system, and can be found on any newer 3800 engine in the junkyard. There'* a few threads on that swap here somewhere if you search.
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Old 08-27-2005, 03:33 AM   #6
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So if I understand you correctly I need to unbolt the coil packs and checkmy connectors.. if I mess with that stuff and it still won't start swap in a differant coil pack and or the stuff underneath it(icm) and go from there... what kind of prices do these things bring?

That being said it sounds like this is a common issue when these engines do not sparkand don't throw a code? caseu I think I read somewhere about no spark if the cranksensor isn't reading.. but that might throw a code?

thanks again

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Old 08-27-2005, 01:42 PM   #7
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I wondered about the crank sensor too... Not sure if those throw a code, or if they will shut you down while the engine is running..?

I don't know about retail, but I found a set of coils and an ICM on ebay for a total of about $40 shipped. Junkyards will be similar.

The connection that you need to check doesn't involve removing the coils or ICM, just the wire harness in the front. Then reinstall it and see what happens.
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Old 08-27-2005, 02:12 PM   #8
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First things first... If the belt was shreded, make sure you look at the Crank Balancer, towards the radiator, you'll see a pigtail connector that plugs into the crank sensor... Some models actually have a cover to avoid the serpentine belt incase of shredding and the like... If you car does not have this cover its possible that the belt has done some damage to the wires for the crank sensor or destroyed the crank sensor...

Like suggest, also check the wires to the ICM...

Good Luck

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Old 08-27-2005, 02:15 PM   #9
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Oops... I forgot all about the shredded belt thing.


Yeah, what he said!
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Old 08-27-2005, 08:47 PM   #10
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So I unplugged the crank sensor plug behind the pully and the harness off the coil block.. all looks good.. cleaned the grease off plugged back in and nothin... :( I guess my next step is to get a coil packand the thing under it? Is this what a shop would do? anyone think I could sneak them from murrays unto the car and if it don't werk return them?




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