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Old 12-27-2016, 03:49 PM   #2
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Re: 01 Chevy Venture Cooling Fans & AC Not Working

2001 U-vans are patterened off of GM W-cars- which in their logic, the cooling fans wait until 175 psi head pressure to turn on the cooling fans upon a/c request. So if you have no compressor running- (due to loss of refrigerant and refrigerant pressure) then your fan(s) will not come on. The first thing to diagnose, is if you have any refrigerant inside your a/c system. Which from here it looks as if you don't- (because you state compressor not coming on). Fix the a/c and see what happens with the fans.

BTW 2001 and 2002 U-vans are notorious for condenser leaks at lower passenger side mounting bracket- if your condenser has never been replace (OEMs are aluminum colored, replacements are black in front) then there is where I'd look for leak first.
Automotive A/C Engineer with:
'99 IH 4700 Toy Hauler
(2) '95 GEO Prizms both maroon
'99 GMC Yukon
'95 Chev 3500, 454 Dually Crew Cab- 145k miles-
Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone-
'92 Chevy Lumina Van 3.8L 264k
'86 GMC S-15 - 2.8L 154k
'87 Buick Park Ave . 187k
'86 Buick Park Ave 3.8L 199k miles- gone
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles-
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