aux. fan fuse blown (420 SEL) 89
 

my fuse to the aux. fan has blown , could anyone tell me why this fuse would blow & does this fuse power anything else ? Also I hav a high idle, car starts fine. the idle is at 1000 but after it warms up it goes to 1200-1500rpm, when the car is put in gear the rpm goes to 700-900.


thanx for any replies

try running 12 V direct and see if she turns, may be bound, may need lubed, may be toast (use ATF) , not sure about idle, need a bit more info, oes it come back down, is it going up and down?

no the idle does not go up & down it stay up until I put in gear then it goes to 700-800 when for on the brake. when the car is stopped and put in park idle goes back to 1400-1500 .

Natural for idle to lower when in gear. Cold idle will also be higher than warm idle. May be correct, do you have idle specs. Check against those before you adjust. May be something as simple as cold idle adjustment, blocked air filter, or PCV.

The fuse would blow because too much current passed through it. Either there is a short or the motor may have gotten bound up a little and sucked more current perhaps. Replace the fuse and see if it happens again. If it doesn't then leave it alone. If it repeatedly blows the fuse, then you have a problem.

High idle...
 

...probably our most common inquiry:

1) Fuse on top the OVP or the OVP itself
2) Dirty or dead idle control valve
3) dying or dead idle control unit

Above in order of expense to replace. Do a search in the forums for in depth info on location and procedures for your model.

here's hoping its the 10 amp fuse on the OVP :D

Kevin