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-   -   need help asap 98 deville fans not coming on (https://www.cadillacforum.com/forum/general-tech-7/need-help-asap-98-deville-fans-not-coming-5280/)

32vnorthstar 02-15-2008 02:44 AM

need help asap 98 deville fans not coming on
 
ok , i just bought a 98 deville an the fans dont seam to come on. i havent driven it too much so i dont hurt it its hit 210 . so far
i checked the big fuse an its ok . i think i found the relays under the fans but not sure which one it is out of the 3 ? i turn the a/c on an the fans dont come on.
tell me what else to check an how to check an i will do . i have a good amount of tool so that not a problem . any thought or idea would be gret thanks .

rickyd 02-15-2008 02:54 PM

RE: need help asap 98 deville fans not coming on
 
have you drivin the car enough to warm the engine up? have you ever over heated the car? where is your temp gauge running?
just thinking maybe the fan won't kick on, untill the engine get to a certain temp..... keep the Forum posted

by the way welcome to the Forum!.... check in with member introduction, look around a bit, let the Forum know whats up with your ride, and we'll try and assist. oh, does 210 mean as in miles?
rickyd

slowroll 02-15-2008 07:24 PM

RE: need help asap 98 deville fans not coming on
 
fans come on at 226 degrees or when a/c is on

32vnorthstar 02-15-2008 09:40 PM

RE: need help asap 98 deville fans not coming on
 
Is there any way to jump the relay conector to see if the fans even work ?
where are the relays for the fans on these cars ?
an which is the relay ?
when is starting to get hot temp for these cars
with some answer to these question i think i can get more info to give too the board
thanks

slowroll 02-16-2008 10:07 AM

RE: need help asap 98 deville fans not coming on
 
Cooling fan relays (3) located on core support between fans. PCM controls cooling fans; scanner that has override functions could be used to turn them on. No scanner, they canbe jumped - Dark Green and Dark Blue wires are grounded by PCM to turn on fans. Invest in FSM (3) books canbe found on ebay and through used manual venders.

32vnorthstar 02-16-2008 03:35 PM

RE: need help asap 98 deville fans not coming on
 
just too make sure we are on the same page . jump the drk green wire too the drk blue? as i would hate too short some thing out .
thanks

slowroll 02-16-2008 06:26 PM

RE: need help asap 98 deville fans not coming on
 
No, those wires recieve ground by PCM to turn on fan(s).You dont short them together.

rickyd 02-17-2008 04:58 PM

RE: need help asap 98 deville fans not coming on
 
whats goin on 32vnorthstar???? 210 meant tempeture, not miles, right?

32vnorthstar 02-17-2008 05:05 PM

RE: need help asap 98 deville fans not coming on
 
slowroll i am relay thankful for your info. but i need more info . which wire do jump to which wire? relay 1 wires blk ,red,orng,dkgrn relay 2 blk,lt bu , wht , orng , dk blu relay 3 red , lt blu ,orng , dk blu . which wire do i jump to which ? i cant afford to mess any thing up . i have all my money invested in this car . an i cant drive it very far / please help
thanks

slowroll 02-17-2008 07:02 PM

RE: need help asap 98 deville fans not coming on
 
Are there any codes stored? Does engine heat up over 230?


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