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PSA: Fuses

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Old Jul 16, 2025 | 06:58 PM
  #1  
1st-monte-ls's Avatar
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Default PSA: Fuses

https://montecarloforum.com/forum/monte-carlo-repair-help-8/shift-solenoid-codes-63499/

https://montecarloforum.com/forum/monte-carlo-repair-help-8/shift-solenoid-codes-63499/

After two years of researching this problem, and being pointed towards potential fixes by some users here, I finally found the possible cause of my car's issues.



Im not here to call anyone out or point fingers (it took me two years to find this) but no one who offered help seemed to know about this fuse. So, to everyone, remember to check your fuses, and remind people to check theirs! Godspeed all!
 
Old Jul 17, 2025 | 08:38 AM
  #2  
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Originally Posted by 1st-monte-ls
Im not here to call anyone out or point fingers (it took me two years to find this) but no one who offered help seemed to know about this fuse.
I disagree. One of the suggestions stated multiple times was to get out the wiring diagram and a multimeter and confirm the electrical is correct. There's only a bit over a dozen wires in the whole harness, so thats not a huge amount of effort.

With a blown fuse, you would've found a wire that should have power/signal that didnt, which would've led you to dig into that wire upstream to find out why - ultimately leading you to the blown fuse. It's basic electrical troubleshooting 101.

Sure, nobody pinpointed the exact issue right out of the gate, but that's practically impossible to do for any problem when you dont have the car in front of you / are going off just a few sentences of info. Hence why we were trying to walk you through the overall diagnostics steps to isolate the problem.


The other thing to keep in mind is that (save for the very rare manufacturing defect) fuses dont just randomly blow on a properly functioning circuit. There's likely something else that caused this to happen / may occur again. It's very likely more diagnostic is still needed here.
 

Last edited by bumpin96monte; Jul 17, 2025 at 08:46 AM.
Old Jul 17, 2025 | 11:40 AM
  #3  
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Originally Posted by bumpin96monte
I disagree. One of the suggestions stated multiple times was to get out the wiring diagram and a multimeter and confirm the electrical is correct. There's only a bit over a dozen wires in the whole harness, so thats not a huge amount of effort.

With a blown fuse, you would've found a wire that should have power/signal that didnt, which would've led you to dig into that wire upstream to find out why - ultimately leading you to the blown fuse. It's basic electrical troubleshooting 101.

Sure, nobody pinpointed the exact issue right out of the gate, but that's practically impossible to do for any problem when you dont have the car in front of you / are going off just a few sentences of info. Hence why we were trying to walk you through the overall diagnostics steps to isolate the problem.


The other thing to keep in mind is that (save for the very rare manufacturing defect) fuses dont just randomly blow on a properly functioning circuit. There's likely something else that caused this to happen / may occur again. It's very likely more diagnostic is still needed here.

I Didn't expect anyone to pinpoint the issue right away, but a lot of people come to the forums to get advice from the older and wiser, to be told "hey dummy, you're overthinking this, there's a fuse you could check first".
​​Not to be led astray needing to test harnesses. Justifying the response of "break out the multimeter" when there's a fuse that could be checked is ridiculous.

But like I said before, no one is being called out here, I just wanted to save a few headaches by reminding everyone that fuses exist and might solve your problem, so don't overlook them. Hopefully this post saves you a headache one day too bumpin.
 
Old Jul 17, 2025 | 07:41 PM
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I have to ask, which fuse panel and which fuse was it (what did GM label it as)?
 
Old Jul 18, 2025 | 06:54 AM
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Nobody here would just say, "check this fuse" and then just be done. A blown fuse is a sign of something bigger, 99% of the time.

Something is happening to cause that fuse to blow. I would check the line or accessories it came from, very closely. -With a multi-meter...

I would bet it going to blow again in the near future if the car is driven regularly.
 
Old Jul 18, 2025 | 10:18 AM
  #6  
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Originally Posted by The_Maniac
I have to ask, which fuse panel and which fuse was it (what did GM label it as)?
"Trans Sol"
 
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