By Alex Martin
Hey guys, i have a 2005 gmc yukon with electric fans. It is the 5.3 and the electric fans will not turn on. I have replaced the coolant temp sensor and the relays and it is still inop. If i send 12v to the fans they will turn on and constant power is getting too the two 4 prong relays my tools will not fit to test the 5 prong. None of the fueses are blown either and relays have resistance to them. It has a slight hickup on startup but not much of one and sadly no they do not work with the ac on the temp will go straight past 210 when parked
Hello. My brother seems to have a bit of a weird problem. He recently swapped his belt driven fans for an electrical ones. He did all the wirings and changed the temp Sensor. Although the AC fan works fine, It seems that the radiator fan turns on instantly when the engine is cold, but when the engine reaches the operating temperature it turns off and stays off.
What could cause this? Did he flip a wire somewhere?
Hello all! A few months ago I purchased a 2006 Silverado 2500 with the 6.0 Vortec engine. My coolant is slightly discolored and there seems to be a little scale inside the tank. I would like to backflush the system, but I am not entirely sure how on this truck. My Chiltons manual says to remove the thermostat and reinstall the housing by itself, then hook up a garden hose to the radiator and backflush. 2 chapters later, the same manual says that the thermostat is part of the housing and cannot be removed! Any advice?
By Tom G
about a year ago we had a warm winter. My truck would overheat every once in a while and I would pull on over and let it cool.
Here is my question: Are there any plastic parts in the coolant system that could have melted just perfectly to spit out coolant
1) every once in a great while
2) about half a quart all at once when it does
3) when it does spit out coolant, it spits it in such a way to allow it to get none on the belt, but all over the front end stuff thats between the road and the middle of the engine (verticle) and between the engine and the cooling fan (horizontal)
I have recently topped it off. Only the reservoir goes empty. It will stay topped for quite some time (months)
Sometimes there is no smell of coolant, while other times one can strongly smell it in the cab.
One time I had parked the truck and while I was walking away from it I heard the sound of a dog, a really big dog, pissing itself. turned around, saw coolant on the ground, smelled coolant from my truck, and found that it had spat out a mouthful of coolant!
That has happened one other time this year.
I fear that times when I am on the road and it happens, it burns up before I can find where it is coming from. It is funny that only the res goes empty though.
By Logan Lanfear
Hey guys, I've been searching for a while to find a used radiator for my 1982. It has the 6.2 diesel and an auto transmission. Recently I purchased the correct sized radiator without the trans cooler. If I were to get a universal HD trans cooler, would I be able to use this newer radiator and cooler? The cooler comes with relocation lines and everything that's needed. I've never swapped a radiator before but taking the old one out was not as difficult as imagined. Just looking for a conformation that these separate units will work.
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