Originally Posted by 02blue
Depends on the thermostat. Mopar can't, Stant can. Trust me I've been there.
Does sound sort of like air in there. I've used the bleed point on the TC cover, usually just remove the plug and fill until it runs out with engine off. That's all I had to do. Last time I did a complete fluid replacement I didn't even need to do that.
Given the symptoms I would bet the thermostat is in backwards. The 3.7 and 4.7 thermostats don't install in the direction your intuition tells you. First time I did a coolant flush, new hoses & thermostat I put the thermostat in backwards. Engine would overheat when driving around then cool back down when I let it idle.
Double check it before tearing into anything else.
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2003 Renegade, Black
- 3.7L, 42RLE, 4.10's, ARB Bull Bar, Smittybilt XRC 9500lb Winch, 4X Guard Trans skid, Skid Row Engine skid, Factory T-case & Tank skids, Custom BoulderBars, JBA Front Coilovers, OME 948 rear springs, Bilstein rear shocks, JBA A-Arms, Moabs with Goodyear Duratracs 265/70-16