I have replaced the water pump, fan, raydeateher cap, hoses, thermometer, and flushed everything. N my truck is still overheating some help me please.

Asked by Jul 08, 2014 at 03:43 AM about the 1991 Ford Ranger S Standard Cab SB

Question type: Maintenance & Repair

2 Answers

33,795

Could it be the temperature sending unit is defective? Sounds like you're done everything else.

21,965

who did the work? you should ask them- unless it's not a real mechanic just someone who was guessin'- the thermostat is usually responsible for overheating if the system is leak-free-- and maybe all that other stuff was just unnecessary unless you are rebuilding the whole truck- that guessin' gets expensive- have the cooling system pressure tested to make sure there are no leaks- it has to have perfect integrity to work correctly- then, if the system has no leaks, I might try to see if there is still air in the system- if an air bubble gets behind the thermostat, it won't work right- try "burping" (squeezing) the radiator hoses with the engine cold and the radiator cap off- do air bubbles come up?

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