Heating and Engine Operating Temp Issues
Hi All,
I have a question that likely has been asked before, however, I couldn't find any threads that detail my exact issue. I have an '88 5.0 with minor mods (Exhaust, Gears, Short-throw shifter, Fluidyne Aluminum Radiator).
Recently I have began to notice the temperature fluctuating between 160° and 200° after the car has warmed up. The engine temp even occasionally dips back down to about 140° after approaching 200°. In addtion, the heater takes forever to work(about 20-30 minutes), and even when it does, it occasionally begins to blow cold while the engine temperature continues to fluctuate.
Initially I was thinking this was maybe a thermostat issue. However, I am concerned the heater core maybe beginning to go out (no signs of leakage though). Haven't changed the thermostat yet.
Any thoughts?
Thanks in advance for your help!
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