i posted this on another forum and didn't get much of a useful reply, so maybe someone here will have a clue what's happening...
on my '94 (which was the first year of the newer coolant), i've noticed that the A/C does this weird hot/cold thing. it'll blow cold air at first, but then sometimes the cold air will turn hot. at first, i thought it was related to the engine getting warm -- on super hot days, i'd notice the engine temperature go up and then the A/C would switch to hot. if it always behaved that way, i could understand that the system is sacrificing passenger comfort for engine temperature. (although i wouldn't be entirely "thrilled" if this was an intentional design feature)
the problem is that it doesn't always behave that way. sometimes, the engine will appear to be in the typical temperature range and yet the A/C goes hot. then, for what seems to be no reason, it'll go cold again. when it's cold, it does get cold like it should (not just "cool")....
naturally, this annoys me the most when it's friggin' hot outside and i'm wanting whatever cold air i can get out of the A/C. this has happened on and off for a long time (years). i know i've had dealers and mechanics look at it in the past and the typical test is for them to start the car, turn on the A/C, and then measure the temperature coming out of the vents after x minutes. under THAT scenario, it always returns a proper result of cold air.
not a real "mod" kind of question, but any suggestions would be appreciated!
on my '94 (which was the first year of the newer coolant), i've noticed that the A/C does this weird hot/cold thing. it'll blow cold air at first, but then sometimes the cold air will turn hot. at first, i thought it was related to the engine getting warm -- on super hot days, i'd notice the engine temperature go up and then the A/C would switch to hot. if it always behaved that way, i could understand that the system is sacrificing passenger comfort for engine temperature. (although i wouldn't be entirely "thrilled" if this was an intentional design feature)
the problem is that it doesn't always behave that way. sometimes, the engine will appear to be in the typical temperature range and yet the A/C goes hot. then, for what seems to be no reason, it'll go cold again. when it's cold, it does get cold like it should (not just "cool")....
naturally, this annoys me the most when it's friggin' hot outside and i'm wanting whatever cold air i can get out of the A/C. this has happened on and off for a long time (years). i know i've had dealers and mechanics look at it in the past and the typical test is for them to start the car, turn on the A/C, and then measure the temperature coming out of the vents after x minutes. under THAT scenario, it always returns a proper result of cold air.
not a real "mod" kind of question, but any suggestions would be appreciated!