vg ute

[bowdes]

how you going ive got a problem with my vg ute the themo fan does not cut in even when the temp gauge is upto 3/4 i have tested the fan and it works no worries any ideals as to what the problem is?

cheers.

[Zuicider]

ecu
i had the same problem just changed the ecu and the fan hasnt stopped working sicne

[vnv8driver]

check the coolant temp sensor (theres 2 of them, only one is for the actual ecu configuration)

Also when you say you tested it do you mean you switched the aircon on?

[bowdes]

only tested the fan by hooking it up straight to a battery,i have checked it again with ac on but no go.

[88GreenVN]

I'd go with the ECU or temp sensor (not the gauge sensor)

Is the car using a heap of fuel? - If it is points to the temp sensor thinking the car is cold.

[VN_Luke]

check:

-fan wiring
-fan relay
-fan fuse
-fan wiring from fuse-box trigger on relay back to the ECU pin
-coolant temp sensor (can check resistance with a multimeter and compare reading to values it should be)

if you search around there will be info on which pin on the ECU is the fan trigger, and also what the GM temp sensor should read resistance-wise according to temperature.