sane 0 Posted June 18, 2005 my vr6 water temps. heats up at standstill, all the way to 105c before high speed fan cuts in, (no low speed fan) but only for a few seconds before stopping for a minute before another short blast. i think this due to faulty thermo switch, and will replace it to see. however i have no run on fan when the engine is shut down, again there might be a faulty sensor involved here. how do you check this ? what does this sensor look like? pumps running, i can hear it ! and top/bottom hoses get hot so tempstat should be ok. appreciate a bit of feedback on this. thanks, sane Quote Share this post Link to post Share on other sites
potatonet 0 Posted June 19, 2005 I have the same problem on my G60, no one apparently knows, I have replace the themoswitch, wiring harness, relays, switches, and fuses, the only thing I have if fan after-run on switch that no one carries yours does sound like the thermoswitch tho being that your fan actually turns on period. mine doesnt. replace the thermoswitch with a low temp one before doing anything else. Quote Share this post Link to post Share on other sites
sane 0 Posted June 19, 2005 sorted the thermoswitch with a 85/93 degree c. now working fine. still need to sort the run on. someone tell me where to locate it on the engine, how to test it and where i can get a replacement, is it gsf/euro or vag? thanks to those who helped diagnose the thermoswitch prob. sane Quote Share this post Link to post Share on other sites
