Another Lift gate problem

[SpareParts]

I was researching today and discovered the drive gear is ONLY for 07-09 from everything I can find. GM calls the system "Low Frequency Drive"
In 2010 the system was changed to a different style called a "High Frequency Drive"
Gm says the two styles are not interchangeable.
I was using a 07-09 drive gear with the 2010 module. It did work for a few days, then broke.
I think that is why I could not program the 2010 module with the 07 calibration and why the drive gear broke.

Incompatible parts. Lesson learned!

 

[SpareParts]

Remember how i was saying the rear lift gate will work intermittingly with the rear handle. Very frustrating as i could not figure out why.
I have been opening the glass and using a screwdriver to open the rear hatch when the gate would not function and usually im by my self so i just lived with it.
Yesterday i discovered that if the DR door is unlocked the lift gate will not open from the rear handle, as usual.
With all doors unlocked it works every time.
Don't know why it took me so long to figure that out but it did and i have never seen that posted anyplace.
Hope it helps someone else in the future.

Now i just need to figure out why when using the remote the gate unlocks, the motor turns but the gate does not lift. Drive gear is new and struts are new.

 

[Doubeleive]

Remember how i was saying the rear lift gate will work intermittingly with the rear handle. Very frustrating as i could not figure out why.
I have been opening the glass and using a screwdriver to open the rear hatch when the gate would not function and usually im by my self so i just lived with it.
Yesterday i discovered that if the DR door is unlocked the lift gate will not open from the rear handle, as usual.
With all doors unlocked it works every time.
Don't know why it took me so long to figure that out but it did and i have never seen that posted anyplace.
Hope it helps someone else in the future.

Now i just need to figure out why when using the remote the gate unlocks, the motor turns but the gate does not lift. Drive gear is new and struts are new.

I would have to guess if the motor is running and the gear is not working then there is a issue in there somewhere between the gear and motor, something is not engaging or something is not aligned correctly or something else is broken. if the gear on the motor is plastic maybe it cracks like the power mirror motors, when that happens the motor runs but the gear cannot because it lost it's grip.
I have not opened one up I recently grabbed a whole unit with the module out of a wrecker at the junkyard in case mine ever craps the bed.

 

[SpareParts]

The drive gear has to be engaged with the motor. There is no way it can not be.
The drive gear is new. The second actually and acting exactly like the first new one.
The drive gear acts like a clutch more or less.
For some reason the clutch does not seem to be engaging.
I could have gotten 2 bad new ones but unlikely although possible.

 

[Doubeleive]

The drive gear has to be engaged with the motor. There is no way it can not be.
The drive gear is new. The second actually and acting exactly like the first new one.
The drive gear acts like a clutch more or less.
For some reason the clutch does not seem to be engaging.
I could have gotten 2 bad new ones but unlikely although possible.

what is it that have replaced twice exactly? link?

 

[SpareParts]

Sure. Here ya go.

https://www.amazon.com/dorman-926-097-liftgate-release-repair/dp/b07thg4sr2

 

[Doubeleive]

Sure. Here ya go.

https://www.amazon.com/dorman-926-097-liftgate-release-repair/dp/b07thg4sr2

meh, for a few more bucks you can grab a whole used unit minus the module and call it a day, just be sure it's the same part I think there are a couple different ones depending on the year. if there are any at the local junkyard you can get it a lot cheaper I think i paid $30 for the one I pulled from a 2013 which will be the same for my 2012, I think 2007 is a different one
all you have to do is swap your existing module onto it.

2007-2014 Cadillac Buick Chevrolet GMC Power Liftgate Tailgate Motor OEM | Rear | Aftermarket Branded | OE | United States

This part has been tested and works as it should. Part has been cleaned so you will not get a dirty part. Latch has minor wear and may have minor scuffs or scratches. 2007-2014 Chevrolet Tahoe. 2007-2014 Chevrolet Suburban.

www.ebay.com

 

[SpareParts]

Yes, 07-09 are the same. 2010 and up are different.

 

[Doubeleive]

Yes, 07-09 are the same. 2010 and up are different.

there is probably 4-5 of them in my local junkyard, they don't seem to be a high failure part so there usually still there even after everything else is tore down to the bone.
I only grabbed one to have on the shelf so I wouldn't have to pay scalping price for one or the module and it would be just my luck if mine failed that there wouldn't be one in the yard for months....