Not enough coolant flow thru the core. What thermostat are you running?? I use a 180* in the summer, and a 195* in the winter.
That 15* makes a lot of difference in the heater operation, but not in the overall engine temp, as it never get close to 1/2 on the gage.
That is because I'm using the heater, which cools the engine too.
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Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
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