door lock cylinder not working on passenger side

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

BadBowtie

Full Access Member
Joined
Mar 4, 2023
Posts
186
Reaction score
225
Location
North Texas
First Name
Jon
Truck Year
1984
Truck Model
Chevrolet
Engine Size
5.0L
Sounds like a bent or binding metal rod in the locking system??

Like in the old days people "slim jimmed" their trucks when the keys were locked inside. Maybe someone hung the tool up on a lock rod and bent it???
 

codfish

Drive a hybrid. I NEED your gas!!
Joined
Jun 9, 2022
Posts
195
Reaction score
581
Location
Newfoundland
First Name
gary
Truck Year
84
Truck Model
K10
Engine Size
350
I “think” the problem is with the door lock pawls. I’ve got a set on the way now.

Apparently that is the part that is side specific. They are clocked differently, the pass side and the drivers side. The one on the pass side is not even close to lining up with the locking mechanism.

Hopefully I’ll have an update with positive results in a week or so.

Codfish
 

JamesSam

Full Access Member
Joined
Feb 15, 2023
Posts
1,660
Reaction score
4,554
Location
VA
First Name
Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
Assuming these are power locks? I don't have a sure solution, but something funny happens on my K10 sometimes that sounds related.

If I try to unlock the passenger side door, via the lock switch on my driver's door, while someone is trying to open the locked passenger door, the whole lock mechanism in that door gets stuck. The lock knob can't be lifted inside, the key in the door cylinder won't turn, and the power lock switch won't unlock it.

To get things functioning again, someone needs to push HARD on the outside of the door while pulling up on the lock knob inside the cab. I've unlocked it that way probably half a dozen times, and it functions normally afterward, but it's always a struggle.

Maybe pushing the door in and working the lock will fix your dilemma???
This same exact thing happens every now and then on my V10. Cannot manually open from inside and neither passenger or drivers switch will pop the knob up. You can see it move so it is getting power, just not up enough to unlock. Typically this doesn't last and the mechanism will work the next time in the truck but I am worried it will be permanent one day.
 

boblee09

Junior Member
Joined
Feb 25, 2024
Posts
6
Reaction score
9
Location
NC
First Name
Eric
Truck Year
1984
Truck Model
C10
Engine Size
5.0
I have a similar problem. To lock or unlock the passenger side I have to double tap the button. 84 C10 Silverado
 

codfish

Drive a hybrid. I NEED your gas!!
Joined
Jun 9, 2022
Posts
195
Reaction score
581
Location
Newfoundland
First Name
gary
Truck Year
84
Truck Model
K10
Engine Size
350
SUCCESS!!!!

I ordered new door lock pawls from Tuckers. A left and a right. THEY are the parts that are side specific. Clocked differently.

Now works as they should!! Happy wife now lol.

Here’s a pic of the old and the new. Sorry, wasn’t smart enough to take a pic before I installed it.
You must be registered for see images attach
 

Forum statistics

Threads
44,416
Posts
957,145
Members
36,755
Latest member
square-up
Top