What did you do to your GMT today?

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Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Talked a buddy of mine through changing spark plugs on his mom's EXT. 130K on the clock, original plugs :no: Lots of DTCs, multiple random misfire, idle lower than expected, 02 sensor problems, evaporative emissions control valve something or other... Found some oil in plug wells 4 and 5, so tightened up the valve cover bolts a bit. Little bit of a scare on the first startup, as it idled rough and stalled. But it was fine after that.

20131124_145702_zps655537ec.jpg



As for mine, ran some sea foam through the brake booster, and gas tank during a fill up. I had done this last summer, and didn't have much come out before, but this time I had a nice smoke show for about 15 minutes.

20131124_161008_zpseda0cbad.jpg



For the hell of it, I decided to run a quick scan on Torque, and this popped up :eek:

Guess I'll be getting some spark plugs to keep handy myself, as I'm right around 90K so just about due. Hopefully that's all it is, and not the coil packs :yes:

Screenshot_2013-11-24-16-22-37_zpscb6f3de1.png
 

mikeinDE

Member
Jan 4, 2012
855
Two friends of mine started a detailing business so I had my truck done today. Wash, clay bar treatment and two coats of wax....

(First time ever my truck has been clay barred.)

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gesajynu.jpg




urgh tapa is killing the quality of my pics anymore, grrrrrrr
 

Venomhatch

Member
Aug 14, 2013
386
Researching the DIY - DIC Button Install. Can anyone help me with the type of switch I need to do this? I Want something that is right but has a button that is lighted with low amount of light so I can put my custom made DIC symbols on them.

View attachment 31453
 

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Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Venomhatch said:
Researching the DIY - DIC Button Install. Can anyone help me with the type of switch I need to do this? I Want something that is right but has a button that is lighted with low amount of light so I can put my custom made DIC symbols on them.

View attachment 18497

You need a momentary push button. There are those that are lighted, just have to find one with a large enough button face to fit your symbols. Most will have a NO and NC option using the pins on the back, so you can choose which way they are setup :twocents:

Something like this perhaps

[ebay]180736856076[/ebay]
 

Venomhatch

Member
Aug 14, 2013
386
Blckshdw said:
You need a momentary push button. There are those that are lighted, just have to find one with a large enough button face to fit your symbols. Most will have a NO and NC option using the pins on the back, so you can choose which way they are setup :twocents:

Something like this perhaps

[ebay]180736856076[/ebay]

Yeah a that looks good but maybe a low-profile style. I am going to take a look at that one.
 

Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Yeah I wanted the low profile ones for my DIC setup too, but didn't see any in my quick search that had a fully lighted face. But you got the idea, and now you can let your mod bug run with it :thumbsup:
 

Venomhatch

Member
Aug 14, 2013
386
Blckshdw said:
Yeah I wanted the low profile ones for my DIC setup too, but didn't see any in my quick search that had a fully lighted face. But you got the idea, and now you can let your mod bug run with it :thumbsup:

I know I said I wanted the full lighted face. But saw this one. Would it work for the DIC buttons if I got four?

[EBAY]141024249501[/EBAY]
 

Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Venomhatch said:
I know I said I wanted the full lighted face. But saw this one. Would it work for the DIC buttons if I got four?

[EBAY]141024249501[/EBAY]

Yup. Similar to the ones I got. I would have prefered yours, but they weren't available when I was doing my build.

100_0740.jpg


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Sparky

Member
Dec 4, 2011
12,927
I drove about 270 miles between Friday and today. Filled the tank, only got 16.5 mpg :no: I'm sure the windy conditions recently haven't helped at highway speeds, but I have noticed that the truck keeps unlocking the torque converter at highway speeds in order to keep the speed up on even relatively small inclines. Just feels like it is down on power/torque down lower on the RPM range. Not really sure why. The grunt just seems lacking.

The truck does have 189k miles on it. I wonder if it just needs a good seafoaming to clean it out. Or, does the CPAS have anything to do with low end grunt? It is original also. Not sure how to really test it. Then I wonder if maybe the cat is getting old and if a partial blockage would cause low end power loss but still rev and feel OK otherwise. Hmm.

Blckshdw said:
For the hell of it, I decided to run a quick scan on Torque, and this popped up :eek:

Guess I'll be getting some spark plugs to keep handy myself, as I'm right around 90K so just about due. Hopefully that's all it is, and not the coil packs :yes:

Given you just seafoamed it I wouldn't worry much. I wouldn't be surprised if it was caused by that.
 

Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Sparky said:
Given you just seafoamed it I wouldn't worry much. I wouldn't be surprised if it was caused by that.

wish.gif
I sure hope so. Hopefully I can pick up a bit better mileage on my commute as a result after I change my oil tomorrow too. Just have to wait and see.
 

Sparky

Member
Dec 4, 2011
12,927
Blckshdw said:
wish.gif
I sure hope so. Hopefully I can pick up a bit better mileage on my commute as a result after I change my oil tomorrow too. Just have to wait and see.

When I seafoamed my old car it set the SES light for misfire conditions. Cleared itself up after the smoke show.
 

Blckshdw

Moderator
Nov 20, 2011
10,779
Tampa Bay Area, FL
Sparky said:
When I seafoamed my old car it set the SES light for misfire conditions. Cleared itself up after the smoke show.

Yep, all was fine after changing my oil and filter this morning.

:offtopic: Got some compliments on my headlights in the AZ parking lot when I recycled the old oil. :biggrin:
 

blazinlow89

Member
Jan 25, 2012
2,088
Sparky said:
I drove about 270 miles between Friday and today. Filled the tank, only got 16.5 mpg :no: I'm sure the windy conditions recently haven't helped at highway speeds, but I have noticed that the truck keeps unlocking the torque converter at highway speeds in order to keep the speed up on even relatively small inclines. Just feels like it is down on power/torque down lower on the RPM range. Not really sure why. The grunt just seems lacking.

The truck does have 189k miles on it. I wonder if it just needs a good seafoaming to clean it out. Or, does the CPAS have anything to do with low end grunt? It is original also. Not sure how to really test it. Then I wonder if maybe the cat is getting old and if a partial blockage would cause low end power loss but still rev and feel OK otherwise. Hmm.



Given you just seafoamed it I wouldn't worry much. I wouldn't be surprised if it was caused by that.

Been fighting this for a couple of months now. Think I found the problem, I think my exhaust manifold bolts are loose. Thing sounds like a powerstroke in the morning and I have a hint of fuel smell in the truck. Wont be able to tackle that until this weekend though. I have however noticed about a 2.5 mpg increase after switching back to the stock intake and resonator. Truck also feels like it has more power down low.

Also I should do a seafoam job some time, its been awhile.
 

Sparky

Member
Dec 4, 2011
12,927
blazinlow89 said:
Been fighting this for a couple of months now. Think I found the problem, I think my exhaust manifold bolts are loose. Thing sounds like a powerstroke in the morning and I have a hint of fuel smell in the truck. Wont be able to tackle that until this weekend though. I have however noticed about a 2.5 mpg increase after switching back to the stock intake and resonator. Truck also feels like it has more power down low.

Also I should do a seafoam job some time, its been awhile.

Hm, I know something is loose/leaking because it does sound diesel-ish when cold. Has for a while but everything else seemed OK, so I never worried much about it. The manifold isn't cracked, at least on the visible side of it (surprising I know), so I am guessing it is a loose or broken manifold bolt and that isn't something I have really wanted to tackle unless I had to :lipsrsealed: Maybe when I do the brakes this weekend I'll check them out and seafoam it. It also has an exhaust leak before the muffler somewhere but not sure where. I'm guessing a crack or rusted hole in the pipe.

I suppose part of the mpg decrease last tank could have been caused by winter fuel and also the high winds. Still certain the downshifting didn't help as this trip should have gotten me closer to 20mpg!

I still have the stock intake. Never bothered messing with it.
 

blazinlow89

Member
Jan 25, 2012
2,088
Sparky said:
Hm, I know something is loose/leaking because it does sound diesel-ish when cold. Has for a while but everything else seemed OK, so I never worried much about it. The manifold isn't cracked, at least on the visible side of it (surprising I know), so I am guessing it is a loose or broken manifold bolt and that isn't something I have really wanted to tackle unless I had to :lipsrsealed: Maybe when I do the brakes this weekend I'll check them out and seafoam it. It also has an exhaust leak before the muffler somewhere but not sure where. I'm guessing a crack or rusted hole in the pipe.

I suppose part of the mpg decrease last tank could have been caused by winter fuel and also the high winds. Still certain the downshifting didn't help as this trip should have gotten me closer to 20mpg!

I still have the stock intake. Never bothered messing with it.

Winter blend did not even come to mind.
 

Sparky

Member
Dec 4, 2011
12,927
Oh I like the looks of that. Controlled by the PCM or is it standalone? Got a link?
 

jimmyjam

Member
Nov 18, 2011
1,634
Mine is controlled by the ECM... two leads control it, ground one for low, ground both for hi
if you had 2 temp switches, say one for 190 one for 210 you could control it standalone.

also modded my fan tables for "winter" weather to have the low speed stay on longer.

[EBAY]151134100961[/EBAY]
 

Playsinsnow

Member
Nov 17, 2012
9,727
Took about a 2mpg hit overall on first full tank of winter gas. But that also included extended idling too so it may be a little liberal of a loss. Usually see about 2.5mpg loss in city and 1-2 highway.
 

Charley12

Member
Mar 23, 2013
133
Ryda55555 said:
Test drove my uncles new duraburb that he got custom made in florida and drove back.....
Fastest thing i have ever driven!
500hp and 800ft/lbs
Has a duramax 6.6L turbo and a allison1000 tranny
Thing beats skyline gtr35s in 1/4 miles....
9000lbs of pure insane lol
Tows up to 17,000lbs
And gets 23mpg.
5 stage EFI live
I want one so bad!!!! Was it done by the guys in New York?
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,665
HARDTRAILZ said:
I guess the survey was deleted and votes lost, so if anyone wants to help me try to get our platform in the Expo calendar....please vote here

***REVISED*** 2014 EXPO CALENDAR - TIME TO VOTE! - Expedition Portal!

31 and 32...

Anyone want to help me get in the calendar?



Ryda55555 said:
Test drove my uncles new duraburb that he got custom made in florida and drove back.....

Charley12 said:
Was it done by the guys in New York?

Hmmm....:raspberry:

Ryda...does he have a build thread about it on ExpeditionPortal? I followed a build on one of them and it was SWEET!
 

Boricua SS

Member
Nov 20, 2011
3,080
Ohio
Dropped the beaSSt off at the dealer to have my new Cats installed... yes I'm waiting and watching them :biggrin:

There's 2 other TBSS' here as well gettin worked on... pretty funny... a red jewel for the window switch recall and a lowered modded Silver one getting the mode door actuators/HVAC system looked at...
 

Sparky

Member
Dec 4, 2011
12,927
Those darned actuators... mine reminded me last night that it isn't happy.

Projects for the weekend.
 

Boricua SS

Member
Nov 20, 2011
3,080
Ohio
Sparky said:
Those darned actuators... mine reminded me last night that it isn't happy.

Projects for the weekend.

I wonder how labor intensive the job is because they have half the dash blown apart almost to the point of removing it...
 

Sparky

Member
Dec 4, 2011
12,927
Depends on the actuator, and also if you follow the shop manual or take shortcuts :biggrin:
 

jrSS

Member
Dec 4, 2011
3,950
Called transmission shop...to see whats goin on. Said they are waiting for a part that's not covered under warranty (performance) and should being picking her up SOON!! Can't wait!!
 

redleg6

Member
Apr 10, 2012
686
waiting on PCM to show up, hope to have it installed tonight...can't wait (thanks Jeremy!) :thumbsup:
 

jbacklund

Member
Dec 16, 2012
118
Installed new tail lights and flasher relay for leds. Got rid of my eurolights, big difference. Only one downside for me, the amber leds doesn't look amber due to the red lens. Turn indicators here shall be amber.

 

Playsinsnow

Member
Nov 17, 2012
9,727
jbacklund said:
Installed new tail lights and flasher relay for leds. Got rid of my eurolights, big difference. Only one downside for me, the amber leds doesn't look amber due to the red lens. Turn indicators here shall be amber.


Did the turn indicator/signals come in amber as stock on your Trailblazer? Don't think I have ever seen amber rear signals on a GMT360.
 

jimmyjam

Member
Nov 18, 2011
1,634
Playsinsnow said:
Did the turn indicator/signals come in amber as stock on your Trailblazer? Don't think I have ever seen amber rear signals on a GMT360.
European export models have the amber
 

HARDTRAILZ

Moderator
Nov 18, 2011
49,665
Hoping to build some new sway bar links for the 06 and maybe sell the 07.
 

blazinlow89

Member
Jan 25, 2012
2,088
Installed the Hella 550 fogs, they provide a good amount of light and have a nice cutoff. Also ordered some 500ff driving lights that I need to figure out how to mount. Nice upswing in temps was good motivation, rain sucked though. Will post pics later.

Also fixed the free floating projector in my headlight. Had to cutoff the stem for the adjustment nut and zip tied it I n place. Still adjustable and stays in place. Now just waiting to pick up my new UCAs so I x an stop the squeeking.
 

Envoy_04

Member
Jul 1, 2013
749
Off from school this week, so I finally got around to fixing the broken console lid.

Before:

View attachment 31470

After:

View attachment 31471

Welded it with a soldering gun after I got the pieces snapped together in the correct places, not the prettiest job but it's stout. Welded the cracks on both sides. Also cut and fit some styrofoam blocks and sandwiched them in there during reassembly for extra support.
 

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jbacklund

Member
Dec 16, 2012
118
Playsinsnow said:
Did the turn indicator/signals come in amber as stock on your Trailblazer? Don't think I have ever seen amber rear signals on a GMT360.

Here's before... Ugly as hell.

 

Playsinsnow

Member
Nov 17, 2012
9,727
Yeah it is. Is the whole outer lens always that red color? Wonder if anyone has done this mod stateside with body color outline?

I guess if you are flying down a stretch of road and you see a light, brake or blinker at that speed is nice to know ASAP :rotfl:
 

jbacklund

Member
Dec 16, 2012
118
Playsinsnow said:
Yeah it is. Is the whole outer lens always that red color? Wonder if anyone has done this mod stateside with body color outline?

I guess if you are flying down a stretch of road and you see a light, brake or blinker at that speed is nice to know ASAP :rotfl:

Yeah it's that red/brown color on all Swedish sold models as far as I know.
 
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