My heater doesn't seem to work right on my 85 22RE Pickup. If I just let it idle to warm up it doesn't get very warm at all. If I drive it and get the RPM's up to 2000 or so it does get warm but never hot. The needle on the temp guage goes up to about 1/3 of the way to the red but never farther. I tried putting some cardboard in front of the radiator but that didn't help much until I drove 20 miles or so down the freeway, at which point the needle did go up almost to the red zone and the temperature at the outlets did get pretty hot but I was afraid that it was going to overheat so I took the cardboard out and went back to the lukewarm air. Does this sound like a thermostat problem? I stuck a thermometer in the radiator yesterday and the water is getting up to about 175 degrees. Would a new 191 degree thermostat actually get the radiator water up to
191 degrees and would that extra 15-20 degrees make a noticible difference in the amount of heat coming from the heat outlets? Any recommendations??? TIA. JM- posted
19 years ago