Ext cab doors don't latch tight

[SD Hunter]

My ext cab doors won't latch tight when it's around 30 or below unless I slam them hard. If the truck runs for 5-10 min. they are fine. The dealership sent me to the bodyshop and they recommended trying WD-40. The other option was moving the latches but that would cause wind noise.

 

I have tried the white lithium with no improvement.

 

Does anyone have any ideas?

[hihosilverado]

My ext cab doors won't latch tight when it's around 30 or below unless I slam them hard.  If the truck runs for 5-10 min. they are fine.  The dealership sent me to the bodyshop and they recommended trying WD-40.  The other option was moving the latches but that  would cause wind noise.

 

I have tried the white lithium with no improvement.

 

Does anyone have any ideas? 

 

<{POST_SNAPBACK}>

 

 

 

There is a TSB on this. Check the site listed at the top of the HD forum.

[Nick2000Gmc]

I have the same problem with mine every winter ( Cold in Canada ), Anyways I adjust mine every winter. Seems that come summer they are still tight, but every winter they move out justa little and need to be tightened up. Myself I just keep the wrench right in my truck to do it. Your gonna do more damage to the seals slamming the door than if you just adjusted them. It's pretty easy once you try it, just be careful of the top plastic piece I broke a tab off mine. I just pull them straight off using a flat screwdriver. Reminds me I have to do mine again soon, notice I keep checking if the top and bottom latch are fully caught

[mcreyaufmiller]

I think in this case, I would look for the problem rather than adjusting them that often. There is something wrong and it needs to be found. The Bodyshops normally do not have access to the TSB's, they will have to be told to get it from the service department. Just my opnions!

[racer]

hope this helps

3rd and 4th Door Hard to Close When Cold (Replace Latches) #00-08-64-016 - (Nov 29, 2000)

3rd and 4th Door Hard to Close When Cold (Replace Latches)

1999-2000 Chevrolet and GMC C/K Pickup Models (Silverado and Sierra)

 

Condition

Some customers may comment that the 3rd or 4th door is hard to close when cold.

 

Cause

There was a change to an internal bumper in the latch and the removal of the primary door seal internal plug.

 

Correction

Verify proper alignment between the upper and lower striker before proceeding to the next step.

Replace the upper and lower latch assemblies using the part numbers listed below. Refer to the Doors sub-section of the Service Manual.

 

 

 

Remove the primary door seal internal plug across from the lower latch assembly.

Parts Information

Part Number

Description

 

15057687

Latch Asm - LH Upper

 

15057688

Latch Asm - RH Upper

 

15063698

Latch Asm - Lower