Engine fan not working
 

Help please. 2001 SC2 is over heating. Fan only kicks on when A/C is on and the A/C has a leak and will not keep a charge. I have replaced the ECTS sensor and that did not help. Is there another sensor? Any suggestions? Thanks :confused:

You changed the ETCS but did you buy it from the dealer, and did you replace the connector that should also be bought from the dealer. As far as the A/C goes we can't find the leak on an internet forum.

Thanks. So both connector and sensor should be changed at the same time?

Yes ....................

is there a second sensor? initially the dash gauge would not go over 1/4 but after replacing the ECTS the gauge goes all the way to the 1/2 way mark but still no engine fan........ There has got to be something else???? Thanks :)

2001 no second sensor. Cooling fan should come on at or around the 3/4 mark or when an operating A/C system is turned on.

Cooling fan is not kicking on at all. The only time it kicked on is when I recharged the leaking A/C but as soon as the compressor stops the fans stops and does not restart. UGH! switched the 2 relays...... nothing. Checked the 30 AMP fuse

If you can get access to a scanner ( I use a snapon) you can toggle the fan on and off .

If the fan runs when you trigger the A/C, that means most of the various parts are in working order. The ECTS may have been a defective part (from the seller - somewhat unlikely), or the Powertrain Control Module (PCM) is not responding properly. It's true that some people run a manual switch on the fan - but I personally don't recommend it

Per Sw2's response, the fan will kick in around the 3/4 tick -- although somewhat unnerving, it is by design. also remember the gauge is not linear.

if it's only at the 1/2 tick, it's running just fine--as in not overheating--assuming there is no corrosion on the ECTS connector that didn't get replaced.

Why do you state it's overheating? Not being a smart ass (right now) --you haven't mentioned it boiling over/spewing coolant....

please do tell