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2005 GMC Yukon XL 1500 SLE 5.3L Cooling Fans
Posted to GM Electrical on 2/20/2015 7 Replies

Now the cooling fans run all the time when the engine is running, they are on high speed, no codes. I suspect it is to do with the A/C high pressure switch, reads 3.3v running, jump red to gray reads 5v. Black wire shows no continuity to ground, I see it goes ...

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  Related Documents & Media  2005 GMC Yukon XL 1500 SLE

 
Message Closed w/FIX

car Vehicle Data

2005 GMC Yukon XL 1500 SLE

VIN 1GKFK16T25
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCooling Fans
ConditionsRuns Constantly
Message Closed w/FIX

car Vehicle Data

2005 GMC Yukon XL 1500 SLE

VIN 1GKFK16T25
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCooling Fans
ConditionsRuns Constantly