wjburken
Supporting Member
I think the guy in the video had a bad motor.
Powered Tail Gate failed
- Thread starter 2007 Denali XL
- Start date
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swathdiver
Full Access Member
I was thinking along these lines:
OP
OP
2007 Denali XL
Member
Thanks for sharing this.
Does you think if the struts are faliing it would impact the door motor activating?
swathdiver
Full Access Member
I dunno, don't have it but thought the video was intriguing. If there is not enough support from the struts, maybe the motor senses too much resistance and doesn't work to preserve itself. I dunno, but changing out a strut is cheap and easy.
OP
OP
2007 Denali XL
Member
thanks, I am going to try that and will report back on the outcome.
OP
OP
2007 Denali XL
Member
Replaced both lift struts but has not fixed the issue. The symptoms remain the same, I am unsure if I should tackle the lift motor or the switch/lock on the tailgate.
The later seems to be working as I can operate it manually therefore I think something is up with the lift motor itself
swathdiver
Full Access Member
Ok, and you do not have a Tech-2 or VXDIAG NANO? Either of those or a Snap-On bi-directional scan tool will identify the problem right quick. I've got a dumb tailgate, so no experience with them.
OP
OP
2007 Denali XL
Member
Here is a couple of vid showing the action from the tail lift motor when I press the button on the tail to close it.
the motor is broken..
try applying 13.5Volts directly to the motor..(make sure the polarity is correct)
OP
OP
2007 Denali XL
Member
w
How would I do that, there are no obvious power points on the motor to connect a supply?
