1997 Cadillac Deville cooling fan adjustment

SWS111

MEMBER
1997 CADILLAC DEVILLE
4.6L
V8
TURBO
2WD
AUTOMATIC
116,000 MILES

Is there a way to adjust the cooling fans from the control panel on a 97 Cadillac deville so that the engine runs at a perfectly cool 196 degrees?

Sunday, May 24th, 2015 AT 9:13 PM

3 Replies

WRENCHTECH

MECHANIC
20,761 POSTS

No, not at all. The fans are programmed to run at higher temps for very specific reason and that is written right into the operating system. That cannot be changed and would be against Federal law to tamper with the settings anyway due to emissions reasons.

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Monday, May 25th, 2015 AT 5:14 AM

SWS111

MEMBER
7 POSTS

So there is no way to adjust the fans so the engine runs perfectly cool at 196 so it does not heat up and ruin the engine? Is it not possible to access the engine computer to adjust the fans so that they come on at whatever temperature that you decide to adjust it to?

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Monday, May 25th, 2015 AT 7:43 AM

WRENCHTECH

MECHANIC
20,761 POSTS

NO, it is not possible to change the fan controls
NO, it will not damage the engine. I was designed to run at that temp.
NO, 196 is not "perfectly cool". It will not burn the fuel completely at that temp at idle.

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Monday, May 25th, 2015 AT 7:56 AM