chadz34 Posted July 6, 2006 Report Share Posted July 6, 2006 I got my vacuum leak fixed and they looked a little bit into the no start problem I have. They narrowed it down to two things....first, a ''coil pack module''..?????What is that? And a fuel pump. They said it is most likely the module....they say it gets ''heat soaked''. I can order this part for 130 bucks or maybe even from a wrecking yard for cheap. Any insight guys? Quote Link to comment Share on other sites More sharing options...
SigEpCutlass Posted July 6, 2006 Report Share Posted July 6, 2006 Coil packs are what the spark plug wires connect to, with the other end of the wires gong to the spark plugs. There are two spark plug wires per coil pack on a L82, and IIRC that is also true for the LQ1. I'm not sure if having one bad coil pack would prevent the vehicle from starting or not. I know that if it were to turn over, it would probably only be running on 4 of 6 cylinders. In terms of the vehicle not starting, I'd be more inclined to believe that the fuel pump is the culprit. When you turn the key to the last setting before start, do you hear a hum noise from the fuel pump turning on? If you don't hear that noise, then your fuel pump is not working. If you need it, I'll find a post where Shawn (GnatGoSplat) detailed a procedure to determine if the coil packs are good or bad. However, the car needs to be running, so I'm not sure if that'll help you at this point. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted July 6, 2006 Author Report Share Posted July 6, 2006 I do hear the hum every single time. So, I know the fuel pump is working. Any more insight guys? I am really close to fixing the problem I just need your help guys! Quote Link to comment Share on other sites More sharing options...
SigEpCutlass Posted July 6, 2006 Report Share Posted July 6, 2006 Alright. What about the fuel filter? The pump cam hum all it wants, but it's not going to do anything if you have a clogged fuel filter. Do you know which coil pack is "bad", if infact that is the case? Or do you need help figuring that out? Btw, can you tell us what has been done so far? Quote Link to comment Share on other sites More sharing options...
1990lumina Posted July 6, 2006 Report Share Posted July 6, 2006 When I changed the coilpacks on a 93 Park Avenue I went to the junk yard and bought all 3 and the ICM underneath for $80 IIRC....fixed the problem perfectly (never did know if it was the ICM or one of the packs - didn't have time as the car needed to be running again). Check the fuel presure at the fuel rail with a tester for extra insurance you're getting fuel - and the right pressure too (I forget the spec though) Quote Link to comment Share on other sites More sharing options...
dalejw3 Posted July 6, 2006 Report Share Posted July 6, 2006 I do hear the hum every single time. So, I know the fuel pump is working. Any more insight guys? I am really close to fixing the problem I just need your help guys! The Ignition Control Module could be bad... for $65 shipped I could get you a full set of coils and a ICM if you would like, theres alot of them at my local J/Y... Quote Link to comment Share on other sites More sharing options...
chadz34 Posted July 7, 2006 Author Report Share Posted July 7, 2006 Well, here's what's up, the car starts fine everytime in the morning or when it's cold and hasn't been running, but every so often after the car has reached full operating temperature...now getting more often...the car won't start and it cranks and cranks, and when it does start it smells like rich fuel, probably normal since it was cranking for a while. I bet is the ICM or whatever module is underneath the coil pack....the mechanic said it can get heat soaked. He said I could find one used for 35 bucks which is what he did. It's pissing me off. My 92 Lumina Z34 hasn't so much as given me one fucking problem. But this 96' is a different story. Since I bought it, it has new brakes, plugs, wires, PCV valve, fuel filter, oil, oil filter, vacuum lines re-done and a battery. Quote Link to comment Share on other sites More sharing options...
1990lumina Posted July 7, 2006 Report Share Posted July 7, 2006 Which car do you drive more though??? Whichever one you drive more will most likely need more maintence done....all about owning a car lol...my Lumina needs so many things fixed it's not even funny....I've just given up on it Quote Link to comment Share on other sites More sharing options...
chadz34 Posted July 7, 2006 Author Report Share Posted July 7, 2006 Which car do you drive more though??? Whichever one you drive more will most likely need more maintence done....all about owning a car lol...my Lumina needs so many things fixed it's not even funny....I've just given up on it The LS clearly gets driven more than the Z34. I just want to have the fucking thing run right. I'm pissed. Quote Link to comment Share on other sites More sharing options...
RareGMFan Posted July 7, 2006 Report Share Posted July 7, 2006 As dalejw3 mentioned, ICM is a very good possibility. I'm pretty sure that's what they meant by "coil pack module". They go by different names for different makes, but that's close enough to know what he's talking about. And if the ICM is bad, or is going bad, it will most definitely create a no-start situation. One, or even 2 bad ignition coils are generally not going to be enough to cause a no-start or no-run condition, as the hiddeous looking coils I removed from my TGP showed. As bad as they were, the car started, and ran. Granted, it barely did both things, it still got me to and from work everyday. You should be able to get the coils and ICM checked to see what's bad, and what's not. I know AutoZone, Murray's, and places like that around here test them for free. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted July 7, 2006 Author Report Share Posted July 7, 2006 As dalejw3 mentioned, ICM is a very good possibility. I'm pretty sure that's what they meant by "coil pack module". They go by different names for different makes, but that's close enough to know what he's talking about. And if the ICM is bad, or is going bad, it will most definitely create a no-start situation. One, or even 2 bad ignition coils are generally not going to be enough to cause a no-start or no-run condition, as the hiddeous looking coils I removed from my TGP showed. As bad as they were, the car started, and ran. Granted, it barely did both things, it still got me to and from work everyday. You should be able to get the coils and ICM checked to see what's bad, and what's not. I know AutoZone, Murray's, and places like that around here test them for free. You may be right, but if the ICM or coils were going out wouldn't it always not start, it only does it when it's warm. It's probably the ICM though. Quote Link to comment Share on other sites More sharing options...
Monkton Posted July 7, 2006 Report Share Posted July 7, 2006 I've had so many coilpacks go bad on me, I'd be willing to bet that's your problem. And if you're gonna pay $130... that's ridiculous. I could get two for less than that at the Napa down the road. Quote Link to comment Share on other sites More sharing options...
joey b Posted July 7, 2006 Report Share Posted July 7, 2006 The cheapest ICM you will find new is about 100 bucks. I would bet that it is that and NOT the coil packs. I found the cheapest ICM to be at advanced auto. Quote Link to comment Share on other sites More sharing options...
SigEpCutlass Posted July 8, 2006 Report Share Posted July 8, 2006 Chad - Go to your local J/Y and pull a ICM from a newer Lumina ('95+). I believe that the LQ1 cars have the same part# ICM as the 3100 cars, so you probably could pull it from either one I believe. Install the "new" ICM, and then see what happens. If it's an intermittent problem that only occurs with heat, I don't see what else might be wrong from what you described. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted July 8, 2006 Author Report Share Posted July 8, 2006 Chad - Go to your local J/Y and pull a ICM from a newer Lumina ('95+). I believe that the LQ1 cars have the same part# ICM as the 3100 cars, so you probably could pull it from either one I believe. Install the "new" ICM, and then see what happens. If it's an intermittent problem that only occurs with heat, I don't see what else might be wrong from what you described. Will try it Mike thanks! Quote Link to comment Share on other sites More sharing options...
1990lumina Posted July 8, 2006 Report Share Posted July 8, 2006 Chad - Go to your local J/Y and pull a ICM from a newer Lumina ('95+). I believe that the LQ1 cars have the same part# ICM as the 3100 cars, so you probably could pull it from either one I believe. Install the "new" ICM, and then see what happens. If it's an intermittent problem that only occurs with heat, I don't see what else might be wrong from what you described. Will try it Mike thanks! good luck Quote Link to comment Share on other sites More sharing options...
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