My efans only run when the truck has been sitting at idle or if the ac is on. They don't have a need to run if I'm going down the road.
what does an antifreeze/coolant tester measure the glycol concentration at? Maybe a flaky temp sensor?
Maybe it is just a sensor cause it's never shown me as overheating before.. could I be running hot cause it's mid 90's outside and i'm running max a/c all the time?
My guess is the fan clutch first. Next would be a faulty sending unit. (what runs the temp gauge) If a overheating indication occurs, ck the coolant level in the system. Make sure the wiring between the gauge and the sending unit is secure and all fuses are intact. To test the temperature sender, check that it reads in the cold range when the engine is cold. Disconnect the electrical connector from the sender and attach a jumper wire between the two pins of the connector. With the key ON, the gauge should now swing to full hot. If it doesn’t, the problem is in the circuit from the sender to the instrument panel. If the gauge does swing to full hot when testing, but doesn’t when the connector is in place and the engine is hot, replace the coolant temp sending unit.
Well I tried to look up normal operating temp for my motor but I can't find it Sent from my DROID2 using Tapatalk