cooling fans keeps blowing a fuse - 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 04-14-2012, 05:45 PM   #11
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Right if I disconnect the biggest fan it doesn't blow
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Old 04-14-2012, 05:49 PM   #12
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Then something is wrong with that fan, or the wiring to it. More than likely the fan. Leave it disconnected. Find a new one.
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Old 04-14-2012, 05:53 PM   #13
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Cool thanx a lot for the help
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Old 04-14-2012, 06:17 PM   #14
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Your welcome.
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Old 04-14-2012, 08:21 PM   #15
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Hey let me ask you this does the fan engage when you turn the car on or does it have to be at a certain temperature before it does? And second with the ac on does the fan stop spinning if the temp is cool enough and start again if it gets warmer?
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Old 04-14-2012, 08:33 PM   #16
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Not sure with your 94 PCM, but it might be the same with my 97...

Ignition ON-Fans will turn on LOW speed at 212F-If engine temp goes to 226F, then fans will goto HIGH speed.
Ignition ON-A/C on, fans will turn on LOW, as pressure increases inside the A/C system, the fans will goto HIGH.

As I said earlier, BOTH fans will run together.
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Old 07-11-2012, 02:54 AM   #17
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Post cooling fan

I replaced both fans and after your driving for awhile it will start to overheat and blow the a/c fuse.
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Old 07-11-2012, 03:04 AM   #18
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yes and yes
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Old 08-29-2012, 04:02 AM   #19
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Default Cooling fan/transaxle fuse

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Originally Posted by mckcuzzi View Post
I have a 94 se and everytime I put a 40 amp fuse in the cooling fan and it blows as soon as the ac is turned on. Ne ideas!!
1996 Pontiac SSei with L76 II engine, 4T60E-HD tranxaxle (I think).
Blew the mentioned fuse which cause radiator to blow and A/C compress cycling on and off. Replaced radiator, A/C working. Fuse blew again and running a jumper wire to each end of a new fuse (not blown) and the fans are running OK. Now my codes show TCC; Solenoids 1 to 2 & 2 to 3 problems. No cruise or OD. I think it'* running in 2nd gear and have to go 1.2.3 shift to run. Since the cooling fan fuse is also linked to the transaxle, I wonder if that'* the reason my transaxle acting like it does? Last recommendation on this site under "transaxle solenoid" was to check pin E at the transaxle connector, but can't find the connector.
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