installed new Duralast (motorad) 207F thermostat and it seems to have fixed the issues. Gauge is coming up to just a hair under the 210 midpoint and the live data on my scan tool shows the ECT is running between 205 and about 214F after fully warmed up and moderate level accelerations and driving. The front heat is now scorching hot and the rear heat is much improved as well.
I got a duralast part from autozone with a lifetime warranty for 25 bucks. My jeep has been been running well for the last year since the change to the duralast part
I will say I went through several OEM stats and finally put a duralast in and it's been in now 5 years no problems.
I work at a Honda dealership in the mechanic field, and I would recommend the OEM thermostat, unless you have a rebuilt engine.
Stop using cheap thermostats. Get an oem honda unit and it will last and work correctly.
Your temp gauge is reading low because your mechanic is not using an OEM Honda thermostat. An OEM thermostat is designed specifically for your engine and the car will warm up quickly and the temp gauge will sit at the 50 yard line in any weather.
The Honda thermostat opened probably 50% more than the aftermarket, so lesson learned there.
I use duralast on my last 3 vehicles no problem.
I have a 2015 sedan and I’ve got 192,000 km and owned it since brand new and I’ve had that happen and changed the thermostat twice, just make sure you get OEM Honda thermostat and coolant as it takes a certain type. Make sure you
Burp the cooling system of all air and make sure you add enough coolant to the radiator and overflow, it’s fairly common for the thermostats to fail
I'd advise taking that Duralast thermostat out and installing either an OEM unit or a unit from a trusted brand (such as Stant). If the Duralast gets stuck in a closed position, the SUV will overheat. If it gets stuck in an open position, the engine won't reach operating temp, and you'll have issues such as running rich. Duralast has a nickname we techs refer to: Duracrap or Dura-doesn't-last.
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