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2009 Pontiac Montana SV6 3.9L fan
Posted to GM Engine on 2/21/2019 10 Replies

The 1,2 and 3 fan relays are all energized, the fans are on high whenever the engine is running, control can be interrupted with the scan tool (modis)the pcm and ect sensor were replaced(used pcm), all wires were checked for continuity from pcm to fuse box...

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car Vehicle Data

2009 Pontiac Montana SV6

VIN 1GMDU03189
Engine3.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedFan
ConditionsFan on All the Time
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car Vehicle Data

2009 Pontiac Montana SV6

VIN 1GMDU03189
Engine3.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedFan
ConditionsFan on All the Time