Overheating Mystery
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Overheating Mystery
I have an 04 F-150 4x4 5.4 Liter with 6" Lift, Flowmaster Dual Exhaust, Volant cold air intake, and the EDGE Tuner Chip with 80,000 miles and I have been having trouble with my truck saying it is overheating but if I pull over turn the key off and turn it right back on than the gauge goes right back to the middle and says it is fine! It only does it at highway speed and going up hills. It did it before I ever put all the extras on the truck also, but it used to not do it very often at all like maybe 5 times a year. now it does it every time I go up an incline at Highway speed I have replaced the Temp Sending unit any other ideas? Thanks for any help!
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I already have my edge set to show the coolant temperature. It goes above 210 and my gauge on my truck goes to all the way hot but it doesn't rise slowly the gauge goes from in the middle straight over to the hottest side in like half a sec! I don't think it is the thermostat because the truck magically "cools off" in the amount of time it takes me to turn my truck off and turn the key right back on than the temp is back to normal so it is like saying it is overheating but I don't think that it is actually overheating?
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From: altoona
so pretty much what your saying its the gauge will peg hot
so you shut the truck off and start it right back up and its fine, gauge back to the right spot and the truck never does over heat but the gauge goes crazy
so you shut the truck off and start it right back up and its fine, gauge back to the right spot and the truck never does over heat but the gauge goes crazy
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yeah pretty much because I never have any coolant boil out and when I turn the key back on instantly it is not hot anymore. I heard it might be a short in one of the coils would that be possible? it says on both the factory gauge and the EDGE gauge that its hot but bothh go back to normal after I turn the key off than back on
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From: Long Beach, Ms.
I suspect the temp sensor is faulty. It is providing the info to both the Edge and the gauge.
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Yeah I did it cost me over $500 to get it installed! I was really mad when that did not fix the problem at all. Since a mechanic told me it could be a coil shorting out I was thinking of getting all new coils would that be a good idea at all? I have replaced all the spark plugs already like 20,000 miles ago and I just replaced the thermostat
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yeah i know the part wasnt much it was all the labor to put it in because it is so far down in there. It is really frustrating because I can't go anywhere out of town on the highway at all. I tried to drive it like 45 min down the highway and I had to pull over like 4 times because it said it kept overheating yet nothing boils out or anything
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From: Long Beach, Ms.
Maybe you can install a temporary gauge to see if it really is overheating. http://www.amazon.com/Auto-Meter-233.../dp/B00062YVSO
BUT I really believe that you have an electrical problem with the sensor.
BUT I really believe that you have an electrical problem with the sensor.
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