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 .

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

RE: need help asap 98 deville fans not coming on
 

fans come on at 226 degrees or when a/c is on

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

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.

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

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.

RE: need help asap 98 deville fans not coming on
 

whats goin on 32vnorthstar???? 210 meant tempeture, not miles, right?

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

RE: need help asap 98 deville fans not coming on
 

Are there any codes stored? Does engine heat up over 230?

RE: need help asap 98 deville fans not coming on
 

car has not goten past 210 temp. i pulled out the connectors on the relays now i have a code . it has now went away but has came back not sure what code it is..

RE: need help asap 98 deville fans not coming on
 

If car has not gone over 210 why are certain there is a problem? A/C has to work for fans to come on.

RE: need help asap 98 deville fans not coming on
 

yeah either that or hit a higher temp and then they turn on. i was concerned to when i got my first lac but then after asking around all my other buddies that drove cadillac turns out 196 - 224 is a normal running temp for the N*

RE: need help asap 98 deville fans not coming on
 

so what temp does the fan come on ? i just dont want too pop a head gasket . thanks

RE: need help asap 98 deville fans not coming on
 

i just read how to check codes , i will chech them tommarrow thanks

RE: need help asap 98 deville fans not coming on
 

well the manual says 180 to 200 is the temperature, but i know it goes more than that functioning normally. I'm not sure but i think the fans go on somewhere around 216 on low and then go on heavy at around 226 somewhere, this is without the A/C on.

RE: need help asap 98 deville fans not coming on
 

ok , car has hit 220 now but still no fans .i pulled codes an there is 7 codes,
po401 egr flow insufficient,
po420 catalyst system low efficiency
po463 fuel level sencor circuit high
p1660 cooling fan control circuits
b1163 loss of serrial data - no lamp responce
b1327 vehicle system voltage below 9.0 volts
u1096 loss of communication with ipc
pcm ?

every thing seams to work good on the car but the fans an the drivers window .
so u guys tell me ? do i need to start a new tread ? thanks