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AC dies after driving for a while.

mrplow

Member
Joined
December 1, 2004
Messages
47
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City, State
Florida
Year, Model & Trim Level
'98 Sport
I have a 1998 Ford Explorer Sport. The AC works occasionally. It seems to work ok at night or when it's cool outside. It seems to hardly blow cold when it's hot outside and then, more often when it's hot, the air coming out goes completely hot. It's as if the compressor shuts off.

For example, when I left work yesterday, 95 degrees and humid, the AC was blowing slightly cooler air than outside. At stop lights I could hear the compressor kicking on and off. After about 10 mins the AC seemed to die and HOT air started blowing out. Then, at lights, I didn't hear the compressor kick on or off. It just idled normally. If I let the car sit with the AC off for a few hours the AC seems to come back, but it will do the same thing. Today, overcast and about 88 degrees. The AC blew slightly cool air, but it lasted 45mins or so before it started blowing hot air.

Any ideas why the compressor seems to stop working and why it happens more frequently on hotter/more humid days?

Thanks,
Peter
 
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Eagle Eye

New Member
Joined
January 8, 2006
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City, State
Cookeville TN.
Year, Model & Trim Level
91 Eddie Bauer
Check the ac lines at the drier and see if they are freezing up and forming ice on the lines. If so it could be a little low of freon
 
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rhauf

Explorer Addict
Joined
November 1, 2005
Messages
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City, State
Ca
Year, Model & Trim Level
91,93,98,&02 Exploders
also it may be a failing low pressure cycling switch (i had that switch fail, gave similar problems). be sure it's fully charged too of course.
 
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