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jmpidgeo

2005 GMC Sierra 1500 Gear Shift Problems ONLY when Cold

Question

Hello everyone,

I recently acquired a 2005 GMC Sierra with the L33 5.3, 4L60E automatic, and push button 4x4.

Every morning since I got the truck, there has been a strange issue that I can't seem to figure out.

When the truck is cold, I can't seem to get the gear shifter out of park and into any gear. It just seems stuck. I can pull it back to 'unlock' it or whatever you call it, but it just doesn't want to move. No matter how hard I press the brakes, nothing happens. Once it is warm enough, I can hear it click in the column, allowing the shifter to move throughout the gears.

 

After a few minutes of sitting with the heater on, for whatever reason, it will finally operate normally and then its fine for the rest of the day as long as the truck warms up first. Today, it was stuck 3 times because I only drove 1 minute at a time to each of two destinations. The brake lights operate normally when cold so I don't think it is a brake switch issue.

Anyone have any ideas on what to check or what the problem could be? Its seriously bugging me.

Edited by jmpidgeo

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6 answers to this question

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Sorry I'm not real sure what the problem could be on your truck. We have a GM rep here (Tricia) that could probably help you out more. The Display Name is GM Customer Service, all you need to do is send a PM with the last eight digits of your VIN.

 

Wish I could help.

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Automatic Transmission Shift Lock Control
Actuator Replacement



Removal Procedure
324906.gif
tif.gif





1.
Disable the SIR system. Refer to SIR Disabling
and Enabling
in SIR.





2.
Remove the knee bolster. Refer to Knee Bolster
Replacement
.





3.
Put the shift lever clevis into the neutral
position.





4.
Disconnect the electrical
connector.





5.
Using a small screwdriver, pry the automatic
transmission shift lock control actuator away from the steering column jacket
and the cable shift cam.





6.
Remove the shift lock control
actuator.

Installation Procedure
324906.gif
tif.gif





1.
Firmly install the shift lock control actuator
onto the steering column jacket and the cable shift
cam.





2.
Connect the electrical
connector.

324912.gif
tif.gif





3.
Adjust the shift lock control actuator (with
the shift lever clevis in the neutral position) in the following
way:







3.1
Pull out the tab (1) on the adjuster block
side (2) of the shift lock control
actuator.







3.2
Press on the adjuster block (2) to compress the
internal adjuster spring which disengages the adjuster teeth. Slide the adjuster
block (2) as far away from the actuator as
possible.







3.3
Lock the adjuster block (2) in place by pushing
in on the tab (1).





4.
Inspect the shift lock control actuator for the
following items:







4.1
The shift lock control actuator must lock the
shift lever clevis when the shift lever clevis is put into the park
position.







4.2
Depress the brake pedal to move the shift lever
out of the park position.







4.3
The actuator will be
energized.







4.4
Readjust the shift lock control actuator if
needed.





5.
Install the knee bolster. Refer to Knee Bolster
Replacement
.





6.
Enable the SIR system. Refer to SIR Disabling
and Enabling
in SIR.

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Great info Rob! SIR is Supplemental Restraint System...airbags, in other words.

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