What did you do to your GMT today? [Part II]

[BrianF]

Got the Trailblazer back from the shop. AC system held pressure but they added dye anyways in case of a slow leak. They recharged it and she blows cold..... very cold, uncomfortable in fact. I had jumped the low pressure switch previous and compressor did not kick on, so I figured worse. Oh well.

They found the same things as myself on the ABS module issue. Power to the unit, good ground, battery tested good. Either the ignition switch (unlikely as it was swapped when the problem first popped up) or the module itself is bad.

 

[flyboy2610]

Gave the wife's '06 TB the same treatment I gave my '04 TB EXT: new brake pads front and rear, oil change, cleaned the throttle body, did the re-learn.
While I was doing the left front discovered that the CV axle boot was ripped up. Have 2 new axles coming now. While I'm in there changing the axle I'm going to go ahead and replace the left outer differential seal and bearing. I replaced those on my '04 last December, so I know what to expect. The parts aren't too expensive and I don't want to have to get back in there to do it later.
She's going to be going up to her mom's in northern Nebraska in 2 weeks for Memorial Day and I don't think I'll get to it before then. I may just cut the axle in half and pull the halves out, leaving the stubs in the diff and hub. That way I know it won't fail while she's out on the highway.

 

[Zaab]

Gave the wife's '06 TB the same treatment I gave my '04 TB EXT: new brake pads front and rear, oil change, cleaned the throttle body, did the re-learn.
While I was doing the left front discovered that the CV axle boot was ripped up. Have 2 new axles coming now. While I'm in there changing the axle I'm going to go ahead and replace the left outer differential seal and bearing. I replaced those on my '04 last December, so I know what to expect. The parts aren't too expensive and I don't want to have to get back in there to do it later.
She's going to be going up to her mom's in northern Nebraska in 2 weeks for Memorial Day and I don't think I'll get to it before then. I may just cut the axle in half and pull the halves out, leaving the stubs in the diff and hub. That way I know it won't fail while she's out on the highway.

May I ask if you do ecu relearn by scan tool or by disconnecting battery? Do I have to do the relearn after cleaning throttle body?

 

[flyboy2610]

May I ask if you do ecu relearn by scan tool or by disconnecting battery? Do I have to do the relearn after cleaning throttle body?

The relearn is done to get rid of the small adjustments that the computer makes to compensate for a dirty throttle body.
Before cleaning the throttle body, remove the PCM1 and PCMB fuses from the underhood fuse box. On our '06 and '04 TB's they are fuses 10 and 28. Leave them out for 30-45 minutes and the computer will forget the adjustments it's been accumulating.
After the throttle body has been cleaned and the fuses reinstalled turn the key to the run position but do not start the engine. Leave the key on for 2 minutes, then turn the key off for 1 minute. After 1 minute start the engine but do not depress the gas pedal. Let the engine do nothing but idle for 10 minutes, don't depress the gas pedal during this time. After 10 minutes I always turn the key off for 1 minute, then start the engine and go for a test drive.
Easy-peasy mac-n-cheesy!

 

[krunal88]

Did some Bondo work on the 05 TB. I can’t take the credit for this, had a family member do most of the work, with a 12 pack in tow.

 

[Zaab]

Did some Bondo work on the 05 TB. I can’t take the credit for this, had a family member do most of the work, with a 12 pack in tow.

Nice sanding, looks really smooth

 

[BrianF]

Figured out the fan problem on the Trailblazer. Back in the winter it had some intermittent problems where it worked and didn't work. Then after getting the ac working, it failed completely. You could hear the relay or whatever it is clicking with movement of the fan switch.

I dug in and had no burnt connectors at the resister pack. I had power at the resister and at the fan connector. Then I found it. The damn connector at the fan jiggled around more than me trying to run. I used some thin plastic to shim the connector and now it works again.