AC died..hot air
#1
Instructor
Thread Starter
AC died..hot air
80k miles 2004 TL auto. Its hot as hell here 90+ degrees and humid. Driving on the highway, 68 degrees AC , two bars so not too high. All of a sudden turns to hot humid air.
Could it be a fuse???? I did get an oil change 2 weeks ago...Any ideas on diagnosing this before taking it in? The fan must work because i can turn it up or down in terms of number of bars, but its all hot air..
Could it be a fuse???? I did get an oil change 2 weeks ago...Any ideas on diagnosing this before taking it in? The fan must work because i can turn it up or down in terms of number of bars, but its all hot air..
#2
Instructor
Thread Starter
WHen i got the oil change they also changed all filters, so air and cabin or engine?? Could they have messed something up? didnt take it to acura...
Again the service was about 2 weeks ago. AC died today.
Again the service was about 2 weeks ago. AC died today.
#3
Registered Member
80k miles 2004 TL auto. Its hot as hell here 90+ degrees and humid. Driving on the highway, 68 degrees AC , two bars so not too high. All of a sudden turns to hot humid air.
Could it be a fuse???? I did get an oil change 2 weeks ago...Any ideas on diagnosing this before taking it in? The fan must work because i can turn it up or down in terms of number of bars, but its all hot air..
Could it be a fuse???? I did get an oil change 2 weeks ago...Any ideas on diagnosing this before taking it in? The fan must work because i can turn it up or down in terms of number of bars, but its all hot air..
#4
Race Director
It's possible the evaporator core froze up due to the high humidity. Push the A/C switch to turn off the compressor and let the fan run for 30 minutes or so. Then turn the A/C back on (push the A/C button again) and see what happens.
And don't use the recirculate feature on humid days. If the light is on, punch it (recirculate) off.
And don't use the recirculate feature on humid days. If the light is on, punch it (recirculate) off.
#5
Burning Brakes
Join Date: Feb 2008
Location: Ottawa, Canaduh!
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Mine just died early this week, on an '08 TL-S(!)....during one of the worst heatwaves that we've ever had here....great timing! I'm taking it in tonight....apparently Honda compressors aren't the most robust units.
#6
Registered Member
It's possible the evaporator core froze up due to the high humidity. Push the A/C switch to turn off the compressor and let the fan run for 30 minutes or so. Then turn the A/C back on (push the A/C button again) and see what happens.
And don't use the recirculate feature on humid days. If the light is on, punch it (recirculate) off.
And don't use the recirculate feature on humid days. If the light is on, punch it (recirculate) off.
#7
I had my Ac go on my 04 TL a month ago and I had to replace the compressor. At first I thought it was that it needed to be recharged with freon or maybe a fuse. After going deeper into the problem I found out that my compressor was bad. I paid $500 to get it fixed at a shop near by my house.
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#9
Suzuka Master
iTrader: (1)
Never discount the evap freezing, but the Acura, as do most cars, has sensors that prevent that condition. Normally if the evap freezes, telltale vapor will be seen coming out of the vents. Just need to have the pressures checked and then determine if electrical or mechanical problem.
#12
Race Director
Never discount the evap freezing, but the Acura, as do most cars, has sensors that prevent that condition. Normally if the evap freezes, telltale vapor will be seen coming out of the vents. Just need to have the pressures checked and then determine if electrical or mechanical problem.
Last edited by nfnsquared; 07-09-2010 at 05:38 PM.
#14
Race Director
Yeah, but the temp sensor measures air temp coming off the coil, not coil temp. I don't know how cold the evap coils get, but I'm sure they're much colder than 32F during normal operation. If there's excess water pooling in the coils/fins due to a clogged drain tube, I imagine the evaporator could still freeze up.
Last edited by nfnsquared; 07-09-2010 at 11:25 PM.
#15
Suzuka Master
iTrader: (1)
Yeah, but the temp sensor measures air temp coming off the coil, not coil temp. I don't know how cold the evap coils get, but I'm sure they're much colder than 32F during normal operation. If there's excess water pooling in the coils/fins due to a clogged drain tube, I imagine the evaporator could still freeze up.
If you don't see any water dripping under the car from the condensate drain then I would consider the drain plugged, but you would have a swimming pool in the HVAC unit and on the floor.
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