Re: [DML] cooling fans

["Lynn Metz" <metzlynn@xxxx>]

DMC Joe:
Sorry, I took a few days to respond, I was trying various things. Here is 
what I have found: (1)the temp switch and the switch from the A/C both seem 
to be working fine. (2)The two fuses are both good. (3)I get power to the 
fuses when I jump the temp switch or turn on A/C. (4)The fans work when 12 
Volts are put to them. There is no power to the plug that goes into the 
fan. (5) there is no power prior to the connector that has the built in 
condensor. (6) the wires are b/g that leave the fuse block area (as noted in 
manual).

> From this I guess that there is a break in a wiring somewhere. However, the 
car was just sitting in the garage and the cooling fans worked one day and 
not the next. Also, it appears that each fan has its own power lead. So, 
it seems odd that while just sitting both power wires could "go bad".

QUESTIONS: Do both fans share the same ground? If so, losing the ground 
could kill both fans. If so, where should I look for the problem? How can 
I check to see that voltage is making it out of the blue socket, after the 
fuses but before the fan connector? Is there an area where any of these 
wires commonly get pinched that I should check first? Finally, when the 
fans do come on, which direction should they spin? Do they push air over 
the radiator or do they pull air through the radiator?
All help is appreciated.
Thanks, Brian 16584

> The first item to check is to be sure that you have 12 volts at the cooling
> fan (blue) socket and by-pass fuses. Let me know the result of your test.
>
> "We're here to help you"; See you in Cleveland!
>
> DMC Joe / De Lorean Services / <dmcjoe@xxxx>
> Web Site: <www.deloreanservices.com>


> > Well, I now have one of the normal problems - my cooling fans. It 
> appears that they stopped coming on yesterday. (There were fine 2 days 
> ago.) I just replaced the temp. sensor and I know it is OK. The fans used 
> to come on before the temp guage hit half way. Yesterday, it went over 
> half way up. When I jumpered the switch, I could hear a clicking (assume 
> this is the relay trying to engage) but the fans won't come on. Then, when 
> I plug the wires back onto the switch, I hear the clicking again. So, the 
> switch is fine. My car has the wired modification upgrade with 2 fuses (no 
> fanzilla). The fuses are good. Where should I start? Can I check for 
> voltage at the fans themselves? I don't think both fans went bad at the 
> same time. What else could it be besides a wiring problem? Need to get 
> this fixed before Cleveland.

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