Question-------------------------
Followup To
Question -
1996 Jetta GL, 2.0L
Had a fender-bender which damaged the radiator. Went to VW dealer and bought a radiator, installed it, and now the fan won't come on. I pulled the wiring connector from the fan switch (in the radiator) and jumped the red terminal to each of the other terminals. One terminal did nothing, the other caused the fan to start. Next I'll replace the switch, but I'm pretty sure the old switch is fine.
Any suggestions?
Thanks.
Answer -
did the fan come on on speed one (fairly quite) or speed two (quite loud)? it is possible a fuse may be blown, or a wire damaged. if the switch is ok, try re-wiring the fan, replace the two wires from the switch to the fan, and the feed wire can be run straight from the battery with no problems. the only side effect is that the fan will continue to run while ever the sensor thinks it should be (even upto 10-15 minutes after the car has been turned off. this is sometimes consider to be annoying, but if it is hot enough to turn the fan on, then by rights it should work whenever it needs to.
Follow-up -
Is the rewiring really that simple? There are three wires at the switch and three at the fan. Correct me if I'm wrong: the current first comes to the switch, then goes out either the wire to the slow speed to the fan or to the fast speed to the fan. Is the third wire at the fan the ground? If so , could I have a wire run directly from the positive terminal of the battery o the switch, and then the gound wire from the fan to either the negative terminal or to the car body?
Thanks.
Answeryes it is really that simple, it is over engineered as standard with 2/3 relays and fuses. but to make it eork when it is needed that is all you need to do. a simple yet effective safety device is to put an inline fuse on the positive wire near the battery, rated at 30 or 40 amps. then should there be a problem it will blow the fuse.
