Question about 2002 Chevrolet TrailBlazer

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2002 chevy trailblazer, replacing the transmission lines

I have a 2002 chevy trailblazer, im trying to replace the transmission lines. i have the two in the front off, now for the other two...other than easy to get to or even see, what is best way to remove?

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The are located behind the dipstick on the passenger side of the transmission, you must remove the retainer clips and pull straight out the same as to the radiator. You may beed to remove the heat shield on the side of the transmission to ease acces

Posted on Dec 30, 2009

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What does it mean when my 04 trailblazer is stuck in reverse


Jungle, sounds like the shift cable broke or detached from shift lever/linkage. Have a good shop diagnose and estimate repair.
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How to replace o rings on transmission cooler line on 2003 chevy trailblazer


YOU NEED A DISCONNECT TOOL TO RELEASE THE LINE FROM THE FITTING, THE ORING IS REPLACEABLE BUT IT IS PAIN TO GET OUT OF THE FITTING. NAPA SELLS THE REPLACEMENT FITTINGS THAT ALREADY HAVE THE NEW ORINGS INSTALLED. THEY DONT COST TOO MUCH

Dec 08, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

Service four wheel drive light on,cant shift into 4wd cold only ,below 45F,drive awahile resatrt the truck it works fine,warm days no problems .


Vehicles: 2002 Chevrolet Trailblazer 4WD 4.2L SFI DOHC 6-cylinder

Your front 4WD Transfer case is low on Gear Oil.
On warm days, the Gear Oil expands slightly, and is less viscous, so the "Service 4WD" light stays off. On colder days/mornings the story changes.

The following paragraph has info applying to the manual differential only:
The 2002 Trailblazer (the first year Chevy made the Trailblazer) has a Front Differential using 1.11 (that's 1 and 1/9th) Quarts Gear Oil, and a Rear Differential with a capacity of 2.29 (thats 2 and 2/7ths) Quarts Gear Oil.
The Gear Oil needed is GM Part No.12345349 or GM Part No.1052931 (they're identical), also known as "GM Synchromesh"(R), which is a type of GLS (Gear Lubricant, Special), also known as "Manual Synchromesh Transmission Fluid 5W30". A synthetic version of which sells for $12.70/qt (USD) at
http://www.amsoil.com/storefront/mtf.aspx

This is not to be confused with 5W30 motor oil (which can be had for $3.00/qt (USD)).

The 2002 Trailblazer 4WD Transfer Case (NV126 Transfer Case) capacity is 0.8 Liters of GM Part No.12378508 (US), also known as "GM Auto Trak II"(R).
Note that one Quart (US) = 0.946 Liter, so 0.8 Liter = 27.06 ounces.

Red Line sells something that they say replaces both GM Synchromesh and GM Auto-Trak II for $12.14/Qt and $44.55/Gal (US) at
http://www.shopwiki.com/Red-Line-MTL-70W80-GL~4-Gear-Oil-%281-Quart%29

13 Manufacturer Recalls apply to the 2002 Chevrolet Trailblazer (model year 2002 was the first year Chevy offered the Trailblazer), and two recalls pertain to the 4WD Transfer Case. Note that one of the recalls applies to only 895 units, so your vehicle is unlikely to be affected by this Transfer Case recall.

2002 Trailblazer Recall ==========================
OCT 17, 2001 ' Recall ID# 54221

Recall Reason POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
Recall Date OCT 17, 2001
Model Affected TRAILBLAZER
Potential Units Affected 78004

Recall Summary
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES EQUIPPED WITH 4-WHEEL DRIVE. THE CALIBRATION OF THE TRANSFER CASE CONTROL MODULE COULD CAUSE INSUFFICIENT HIGH SPEED GEAR ENGAGEMENT.

Consequence
IF THE GEAR IS NOT ENGAGED, THE VEHICLE CAN ROLL WHEN THE TRANSMISSION IS IN "PARK" AND A CRASH COULD RESULT WITHOUT WARNING.

Remedy
DEALERS WILL UPDATE THE TRANSFER CASE CONTROL MODULE CALIBRATION TO INCREASE GEAR ENGAGEMENT. OWNER NOTIFICATION BEGAN NOVEMBER 6, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.

Notes
GENERAL MOTORS CORP. 01064/01065

2002 Trailblazer Recall ============================
SEP 05, 2001 ' Recall ID# 26006

Recall Reason POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
Recall Date SEP 05, 2001
Model Affected TRAILBLAZER
Potential Units Affected 895

Recall Summary
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES (4 WHEEL-DRIVE). SOME OF THESE VEHICLES WERE BUILT WITH A RANGE SHIFT COLLAR IN THE TRANSMISSION TRANSFER CASE THAT CONTAINS CRACKS.

Consequence
THIS CONDITION COULD RESULT IN A COMPLETE FRACTURE OF THE RANGE SHIFT COLLAR AND SUBSEQUENT LOSS OF VEHICLE FORWARD AND REVERSE GEARS, AND THE INABILITY TO MAINTAIN "PARK" POSITION. THIS INCREASES THE RISK OF A VEHICLE CRASH RESULTING FROM UNINTENDED MOVEMENT OF A PARKED VEHICLE.

Remedy
DEALERS WILL REPLACE THE TRANSFER CASES AND UPDATE THE CONTROL MODULE CALIBRATION. OWNER NOTIFICATION BEGAN SEPTEMBER 6, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.

Notes
GENERAL MOTORS CORP. 01061


Read about all (13) 2002 Chevy Trailblazer recalls at:
http://www.internetautoguide.com/10-12-2002-16-1287/2002-chevrolet-trailblazer-recalls.html

Dec 05, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

Im trying to dx my alternator problem, i want to check the fuse first where would i find that.i looked in the manuel but theres's not a fuse labeled alternator fuse(chevy trailblazer 2002).


That's because there isn't any. Use a voltmeter and measure the voltage on your battery, then start the car up, if the voltage doesn't move or goes down, replace the alternator. A normal voltage should be 12-12.5 Volts with car off and 13.5-14 Volts with the car running. Have a nice day!

Dec 14, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Transmission cable falls off linkage arm


I'm looking for this part too. The shifter arm in my Trailblazer has become disconnected from the transmission cable and I currently have it held on with wrap ties. Any luck finding this part and installing it?

Apr 13, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

I have a 2002 Chevy Trailblazer. Just replaced


If you unhooked battery it will need to relearn its idle position, should help if you clean throttle blade edge and body of carbon so proper amount of idle air can enter engine.

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1 Answer

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Sounds like the PRNDL switch on the side of the transmission. Be sure and clear the code before trying to start after replacing it.

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02 Chevy Trailblazer: Fuse # 47 keeps blowing. When it does, the key cannot be removed and the transmission is sluggish in 1st gear. I am replacing fuses daily. Any thoughts on a fix? Is it the...


there is a short circuit in the system, check for a broken wire, also check the fuse and relay, make sure use use the wright fuse type an number.

Jul 31, 2009 | 2002 Chevrolet TrailBlazer

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