Posts: 20
I noticed I have only one cooling fan running today, my car has the fan fail bypass rig, both fuses ok, AC on, still only one fan, otterstat bypass same results, I am not getting 12 volts at suspect fan. I haven't tried introducing 12v to the fan but I know I don't have 12v at fan from wires. any ideas.?
Location: Syracuse, NY area
Posts: 1,026
My VIN: 10287
Club(s): (DMA)
It sounds like your fan is toast but just to be thorough, have you checked the fan relay? (the standard relay next to the fan fail) I'd see if any of the wiring to that relay is burned or damaged.
Nick A.
1988 BMW 325is
1982 DeLorean DMC-12
1989 Jaguar XJ6
Posts: 20
I haven't looked at that relay, I need to test the fan with 12v and I'll update. Does this wiring look ok on the fan fail bypass.Screenshot 2024-03-22 at 4.49.22 PM.jpg
Last edited by rustycarr; 03-22-2024 at 06:03 PM.
Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
Those jumpers are not installed in the correct pins.Originally Posted by rustycarr
Posts: 20
interesting, maybe you found my problem. ill search and find the right connection. Thanks!
Location: Syracuse, NY area
Posts: 1,026
My VIN: 10287
Club(s): (DMA)
https://dmctalk.org/showthread.php?4...ing-Schematics
This should help.
It looks like the terminal on the right should be one over to the left.
Last edited by AugustneverEnds; 03-22-2024 at 09:39 PM.
Nick A.
1988 BMW 325is
1982 DeLorean DMC-12
1989 Jaguar XJ6
Posts: 20
I moved the wires in the fail safe rig to the correct location and still nothing at driver fan, passenger fan works fine. Maybe fan relay? Would the relay kill just one fan?
Location: Syracuse, NY area
Posts: 1,026
My VIN: 10287
Club(s): (DMA)
Maybe check the non-functional fan's ground?
Nick A.
1988 BMW 325is
1982 DeLorean DMC-12
1989 Jaguar XJ6
Location: Illinois
Posts: 2,440
My VIN: 11408
Club(s): (DMWC) (TXDMC) (DCUK) (DOI)
You have mentioned it a few times already, you need to check for power at the fan plug.
When diagnosing electrical issues work from one end to another. Replacing and guessing parts will bring more frustration than success.
Supercharged 5.3L LS4 + Porsche 6spd
[email protected]
lsdelorean.com
I am not affiliated with Delorean Midwest in anyway.
Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
Fan relay would not kill one fan. If you tested the voltage at the fan connector and get no voltage when the other fan is running then you need to test that you get voltage (with the one fan running) at the fan fail jumpers. All three jumper should have the same voltage.
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Dave M vin 03572