Car gets hot with ac lever on cold?
- Thread starter MrSony
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Yes. MAX AC and blend door to cold. Gets up pretty near 220ish but within a minute or two of switching it back to non AC and hot on the blend door it goes back down.
in your 4th post "The temp gauge goes over 200 when I have the blend lever on cold then quickly shoots back down to 195 when I put it to hot. Even with the blower off it does this.".....what has changed to make the temperature shoot up to 220?
#7, from 11/13/18
"Probably. And by over 200 i mean about 220f from 195. And it does it depending on blend door position, blower lever position or speed has no effect. If the car is on and its on cold eventually ot will read as if its overheating. Within 10 seconds it returns to normal when movinf blend lever to hot."
Mobile phone spelling errors and all.
If it travells from 220 to 195 within 10 seconds of switching the heat to hot I think there is an electrical issue. Any car I have driven if ti is running hot and I turn on the heat to draw some of the heat away it would never drop 25 degrees in 10 seconds. I don't suppose you got a laser temp gun so you could verify the temperatures like I suggested.
The gauge is mechanical, or as mechanical as a capillary tube gauge can be. I've been meaning to swap the radiator out since I got this one actually, it's kind of bent in the middle, and it's really dinky. It's as wide left to right as a V8 radiator but its got plastic tanks and is a single core. I suppose that having a radiator with the same cooling capacity of a V6 would cause some issues, but one would assume that it would be constant, not just in this once specific instance if I do these specific things.
Would the ac stuffs running through the evap. core cool the heater core down at all? Is the only reason my car is doing this because it's an AC car, with non functioning/existing AC?
with a mechanical gauge a weak engine ground can cause fluctuations in temperatures.
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