07 k1500 cooling fan wiring. We have one year and five year subscriptions available for this chevy truck service repair manual as well. Electric engine cooling fans are used to help remove the excess heat produced by the engine during the combustion process. 2007 silverado lt 48l new body style. Electric radiator fans do not come on when engine is hot nor after turning off will only come on when ac is turned on.
2007 chevrolet silverado. Oldskool funk 738668 views. Diagnosing a non working radiator fantesting fan switch w a soda can water fire honda civic duration. Cooling fans are now controlled by the ecm through the respective module network and using duty cycle control signals.
Fans purchased from amazon dorman 620 652 radiator fan assembly wiring harness provided by nelson performance programming to turn on pcm fan control done. The only hard part looks like a 36 mm bolt. Here youll also be exposed to the current path voltage and sensor signal. We are the industrys leading source of online factory diagnostic and repair information used by 200000 automotive technicians everyday.
Its on ebay comes with dual fans shroud all mounting hardware relays wiring fuses indicators and some kind of automanual controls that fit in the glove box. I have had a lot of people ask me about gm radiator cooling fan diagnosis in the past. Engine runs correct temp while air flows through radiator at highway speed or when ac is turned on thus. Coolfan 3 relay cooling fan left and right low speed.
The first thought that usually come to mind is whether the fan has failed. With alldatas online manuals you get thorough wiring diagram schematics as well as repair info factory part numbers and labor times and much more. It basically runs two fans in series for low speed and then puts each on its own 12v circuit for high speed. Electric cooling fans not working.
Coolfan 2 relay cooling fan left and right high speed. Sometimes these fans will cease to function properly. How to straight wire a cooling fan to an engine by william kinsey.