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| you can fix your HVAC mitey, the heater valve servo sticks on these Kelsey-Hayes HVAC modules, and it sets no fault codes whatsoever. For a quick fix, shut off your heater hose valves at the engine block. If there are no valves, rig up a couple, or pinch one f the hoses shut with a vise-grip pliers and a couple of wood blocks. If this gets the cooling going, you know the water servo has stuck. If it doesn't, check HVAC module controler and wiring, and test circuit between HVAc and the compressor. | |
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What to look for on used Case STX 375
