Thermostat

tracyk77

New Member
Joined
Jul 7, 2026
Messages
2
Location
Covington Louisiana
Replaced the thermostat housing (aftermarket part) due to code but no issues. Now its running hotter past the center line sometimes to the first mark and fan stays on a lot with fluctuations. Is this part not working? Left the radiator cap off a while parked at an upwards slant to get air out. Do I need a OEM thermostat? 2014 sahara
 
Mahle makes the OE part and is cheaper.

Did you buy off Amazon? Lots of junk counterfeit parts there. Buy a Mahle off Rock Auto. That’s what I have on mine when the thermostat died.
 
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