308QV Radiator Fan Log Out | Topics | Search
Moderators | Edit Profile

FerrariChat.com » Technical Q&A Archives » Archive through December 07, 2002 » 308QV Radiator Fan « Previous Next »

Author Message
Odhran McConnell (Kryzian)
New member
Username: Kryzian

Post Number: 8
Registered: 11-2002
Posted on Thursday, November 28, 2002 - 3:46 am:   

Hi Hans,

I've just sent you an email ... I think it's the motor on the fan. Everything else checks out unfortunately.
Hans E. Hansen (4re_gt4)
Member
Username: 4re_gt4

Post Number: 493
Registered: 4-2002
Posted on Saturday, November 16, 2002 - 6:37 pm:   

Odhran: Contact me if it is the motor.
Odhran McConnell (Kryzian)
New member
Username: Kryzian

Post Number: 7
Registered: 11-2002
Posted on Saturday, November 16, 2002 - 3:13 pm:   

Thanks for your advice guys. I had a further look at the situation today, the RH fan doesn't turn on at any time - Air conditioning or warm engine. LH fan turns on fine for warm engine.

I've got my circuit wiring diagrams, and some time tomorrow - let's hope it's only a fuse!
Hans E. Hansen (4re_gt4)
Member
Username: 4re_gt4

Post Number: 480
Registered: 4-2002
Posted on Friday, November 15, 2002 - 3:35 pm:   

Matt: Come to think of it, just before they both crapped out, one was running slowly (dim), and the other would run if you jiggled the wires (flicker).
Matt Lemus (Mlemus)
Member
Username: Mlemus

Post Number: 550
Registered: 8-2002
Posted on Friday, November 15, 2002 - 12:34 pm:   

Hans,

off, flicker, dim ?

M
Hans E. Hansen (4re_gt4)
Member
Username: 4re_gt4

Post Number: 479
Registered: 4-2002
Posted on Friday, November 15, 2002 - 12:34 pm:   

Check the fan motors. I *think* that the QV uses the later motors, but if they are the older Lucas motors, that could be the problem.

Hans. (who had 2 - count 'em - 2 bad Lucas motors)
Steve Magnusson (91tr)
Intermediate Member
Username: 91tr

Post Number: 1185
Registered: 1-2001
Posted on Friday, November 15, 2002 - 11:52 am:   

Odhran -- Matt L. is describing how the 308 coolant radiator fan logic is supposed to work:

Coolant cold, AC off -- both fans off
Coolant cold, AC on -- RH fan runs
Coolant warm, AC off -- both fans run
Coolant warm, AC on -- both fans run

The RH fan is controlled by two separate relays (one turns the RH fan "on" when the coolant is warm and the other turns the RH fan "on" when the AC is on), but they are fed by the same fuse. If you turn on the AC and the RH fan still doesn't run, it's probably a blown fuse (or a dead RH fan motor, or bad wiring/fusebox, etc.). If you turn on the AC and the RH fan does run (but it doesn't run when the coolant is warm) then the RH fan relay activated by the coolant sensor (or its wiring, etc.) is probably bad. Follow JRV's advice -- check the fuses (and if the RH fan motor fuse seems OK, it wouldn't hurt to verify that there's +12V present on both the input and output male terminals of the fusebox itself).

Matt Lemus (Mlemus)
Member
Username: Mlemus

Post Number: 539
Registered: 8-2002
Posted on Friday, November 15, 2002 - 11:11 am:   

If it does not turn on then check the fuses.
Odhran McConnell (Kryzian)
New member
Username: Kryzian

Post Number: 6
Registered: 11-2002
Posted on Friday, November 15, 2002 - 11:09 am:   

The air conditioner?? You serious? I thought it might be something like the thermostat control switch, or the fan motor or something. I'll check this out when I take the car out. Thanks!
JRV (Jrvall)
Junior Member
Username: Jrvall

Post Number: 112
Registered: 11-2002
Posted on Friday, November 15, 2002 - 10:53 am:   

The fuses are a good place to start looking for a problem with an electrical problem.
Matt Lemus (Mlemus)
Member
Username: Mlemus

Post Number: 535
Registered: 8-2002
Posted on Friday, November 15, 2002 - 10:27 am:   

Turn on the air conditioner. That will start the RHS fan
Odhran McConnell (Kryzian)
New member
Username: Kryzian

Post Number: 5
Registered: 11-2002
Posted on Friday, November 15, 2002 - 10:21 am:   

I haven't had a chance to properly look into this - I just noticed it the other day and I was in a hurry. The RHS radiator fan is not spinning. Any ideas to point me in the right direction before I delve into my manual?

Add Your Message Here
Posting is currently disabled in this topic. Contact your discussion moderator for more information.

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration