8.0

pretty bad
Typical Repair Cost:
$270
Average Mileage:
96,550 miles
Total Complaints:
3 complaints

Most common solutions:

  1. have to replace the housing (3 reports)
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problem #3

Nov 152014

Mustang 4.0L V6

  • Automatic transmission
  • 125,000 miles

Easy to fix on your own but it definitely takes time. It's a known issue due to the material of the housing. You'll usually notice a coolant leak and can pinpoint where the leak is coming from. I had to replace the housing, thermostat, and the O-rings on the thermostat and sensor. Usually people change the sensor, too. But, it's not necessary if it still works.

- J C., Charlotte, NC, US

problem #2

Oct 022015

Mustang Convert 3.2L V6

  • Automatic transmission
  • 113,516 miles

This is the 3rd time in the last year I have had to change the crappy thermostat housing on this car. There is a an issue here and Ford does not care

- quintinlee, Watsonville, CA, US

problem #1

Sep 282013

Mustang V6 4.0L

  • Automatic transmission
  • 51,000 miles

Just pulled out of my driveway to go to a charity walk in the city and I smelled antifreeze. Big Time. I turned around and pulled back in my drive. Antifreeze was sprayed all over my engine. I had a warranty on my car that I had paid for so I had it towed to the dealership. It ends up it would not pay for it. I have since found out that Ford used a not so great thermostat housing with a seam in it that can come apart in the Mustang and Explorer. This happened at 51,000 mi. I was fortunate that I was somewhere safe (just left the house) where I could immediately get the car off the road before it got hot and cause further damage. I have read up a little on it and it seems this is a problem that happens to a lot of people and I wish they would make a better part. I was told the thermostat and housing is in one unit and since my warranty did not pay for a thermostat....it would not pay for any of it. I wish they would recall this part and replace it with a good reliable sturdy housing. Mustangs aren't cheap. It's ridiculous to run into this problem. It could have ruined an engine or left me stranded somewhere I didn't want to be. Ford has to know about it. (the dealer's mechanic told me the same thing I read up on...Mustangs and Explorers have this housing that is known to crack) They need to man up and fix it.

- ksc, Lynchburg, OH, US