Thermostat problems
Thermostat: It regulates the engine's temperature and it changes the refrigerant flow into the radiator.
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Related problems:
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Top problems
06 f150 throttle dieing issue
Ford F-150 2006 200002 miles
I drive around at least 2 hrs or more and 06 f150 you go to mash pedal down to pull out or to go up hill or to pass and truck just shuts off no power anything no lights nothing. I've replaced throttle body, fuel pump control mod. Up by spare tire. Ive replaced fuel filter. Thermostat, air filter , sill have this issue I really would like to drive my truck again. What else should I fix.
3 reports
D-
The pcm fuse in the interior fuse box on the driver side is blown. It happens when the fuel module goes out or has a bad ground. The wire harness for the pcm runs through the frame of the truck. I went through 3 pcm and probably 20 fuses trying to figure why I had this issue. There is an exposed wire running from the wire harness touching the frame. Good luck
Vote helpful1
FO
Id start by changing complete fuse box. The whole box! I had almost identical issue almost 2 yrs ago, never could figure it out. Had a rare day off work and a bit of tinker brain wanting to tinker and had looked at everything imaginable. So i daid to hell with it i puuld the box and took it apart, completely! I seperated the circuit boards and foun a blown trace. Completeley seperated trace, finger,run or whatecer you wish to call it. It was completely seperated like a ¼in gap seperation. Snatched a box from junkyard hokked it up and been gettinit ever since
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CommentOverheats and leaks water
Ford F-150 2008 360000 miles
I have a Ford F150 XL 4WD 5.4L. What happens is that after stoppin for around 10 minutes the water starts leaking, but there is no high temperature indication until it lost around half the water, and then it indicates it's overheating.
Notes:
* I removed the thermostat two monhts ago
* I removed the water pump but it looks in good shape, it might be leaking but very very little, not enough to run out of water in 10 minutes
* It has 200.000 miles
* I can't see any leak in the water hoses
* The readiator doesn't seem clogged
* The water intake is not leaking
* There is no warning light in the dashboard
Notes:
* I removed the thermostat two monhts ago
* I removed the water pump but it looks in good shape, it might be leaking but very very little, not enough to run out of water in 10 minutes
* It has 200.000 miles
* I can't see any leak in the water hoses
* The readiator doesn't seem clogged
* The water intake is not leaking
* There is no warning light in the dashboard
4 reports
Check the fan clutch, sometimes they don't work and the engine is not cooled. I have a 2000 model, and when I bought it it was overheating and leaking water the same way as yours
Samsung exact problem also ford f150 2001 larieit 5.4. No heat blowing just changed thermostat and still does it. Also only overheating when it's about half full in reservoir.
CommentHeater not blowing warm
Ford F-150 2000 5.4 150 miles
I'm usually very capable of making repaired on my truck, this has me stumped. I replaced the thermostat, flushed the system still blowing cold. When I first flushed the system it blew warm for about 5 minutes then became cold again. Open for any ideas. Please jim
16 reports
There is no coolant going through the core. Return hose can be removed with engine running and you won't get wet.
CommentOver heating
Ford F-150 2001 5.4 Triton 180000 miles
Running hot ! No leaks! Air not on. Heat not on. New water pump. New thermostat! Still over heat! Y???
2015 3.5l F150 overheat
Ford F-150 2015 51400 miles
Originally only happened when temperatures were below (-15). Have had thermostat replaced/ system flushed/ New 21psi overflow cap put on. Does not happen when idling only when I get on the highway. Has been in the RED and I hit a bump and immediately drops to normal. (Why I replaced T-stat), but now it still wants to overheat once on the highway, but if while driving I give it some gas it will sometimes stable out to normal temperature. In Alaska and nearest dealership is 100 miles away.
3 reports
Heats sometimes then blows cold air
Ford F-150 2003 102000 miles
Heat works sometimes. Drained all coolant from truck. Flushed all components with garden hose. Replaced thermostat and coolant. Had heat for a while then stopped. Replaced thermostat again. Had heat right away put got cold 3 miles down the road.
1 report
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