Poor AC while city driving
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Senior User
Joined: Jun 2015
Posts: 199
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From: Littleton, CO
Poor AC while city driving
2000 Expedition
If speeds are under 40 mph and the air temp is above 85, my AC does not seem to work well. On the highway, it seems to work very well.
Recently replaced with no change in performance:
Fan clutch
Water pump
Radiator
I've also degreased and hosed out the condenser.
The AC system has been checked (by a friend with a set of gauges- but is not a professional) and a small amount of refrigerant was added. Still no improvement.
Any obvious other things to check?
Thanks.
If speeds are under 40 mph and the air temp is above 85, my AC does not seem to work well. On the highway, it seems to work very well.
Recently replaced with no change in performance:
Fan clutch
Water pump
Radiator
I've also degreased and hosed out the condenser.
The AC system has been checked (by a friend with a set of gauges- but is not a professional) and a small amount of refrigerant was added. Still no improvement.
Any obvious other things to check?
Thanks.
Fleet Owner
Joined: Apr 2008
Posts: 24,316
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From: 0,0,1
We would need to know what the low and high sides pressure reading were to even begin to answer.
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Senior User
Joined: Jun 2015
Posts: 199
Likes: 0
From: Littleton, CO
Good point.
I forget the exact numbers but they indicated that we needed to add the refrigerant. We added the refrigerant and the numbers were in the proper range. And this was actually last summer- temps haven't been that warm yet.
I forget the exact numbers but they indicated that we needed to add the refrigerant. We added the refrigerant and the numbers were in the proper range. And this was actually last summer- temps haven't been that warm yet.
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