Question about 1998 GMC Sierra

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Replaced transfer case and now will not go in to gear do i have to take to a shop and hook it up to a comupter

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Before u change the transfer case what is teh trouble code?...however yuor question is you change the transfer case and now will not go on it,,,, very first thing you do is check first the harness and connectors,,if good go to the transfer case incoder motor remove the incoder and dis assymble the two gear has a timing mark mach on it,,,,, after that check the lock motor in postion...before you install put the selector lever into nuetral position carefully shoot without forcing on it,,,

Posted on Jul 28, 2010

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A computer wont tell u what is wrong with ur car cus its not electrical, but u do have to take it to a shop cus something is wrong and im not sure what it is

Posted on Jul 10, 2010

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Four wheel drive won't engage replaced the wheel speed sensor and the actuator 2002 GMC Sierra 1500 4.v6 w engine code checked the fuse and to see if power is getting to the actuator


Your best bet , take it to a qualified repair shop , before you replace more part's that arn't needed . Did you check to see if any DTC'S - diagnostic trouble code's are stored in the transfercase control module . Which transfer case does it have ? How many buttons on the instrument panel 4X4 switch ?
The NVG 236/246 transfer case features a 4 button shift control switch located on the instrument panel.
Do you know what a DTC is ?
DTC C0367
The front axle control circuit consists of an electric motor actuator which engages and disengages the front axle. The front axle actuator's motor consists of a Permanent Magnetic (PM) motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit all within the actuator assembly.
The front axle actuator has four circuits connected to it, a front axle feed circuit, front axle ground circuit, front axle control circuit, and a front axle switch circuit.
Whenever a shift to AUTO 4WD, 4HI, or 4LO is requested, the automatic transfer case control module engages the front axle by grounding the front axle control circuit through a current limiting driver.
This DTC detects a shorted actuator, or a short to 12 V on the Front Axle Control Circuit.

Your vehicle can set a number of them .
DTC B2725
DTC C0300
DTC C0305
DTC C0308
DTC C0309
DTC C0310
DTC C0315
DTC C0323
DTC C0324
DTC C0327
DTC C0362
DTC C0367
DTC C0374
DTC C0376
DTC C0387
DTC C0550
DTC C0611
Without a professional scan tool an factory service repair info. you really shouldn't be trying anything , take it to a qualified repair shop.
The NVG 263 transfer case features a three button shift control switch located on the instrument panel.

New Venture Gear 263 Selectable Two Speed Transfer Case
The NVG 263 transfer case features a three button shift control switch located on the instrument panel. When the vehicle has the ignition key in the RUN position, the transfer case shift control module starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/gear position. The lamp will continue to flash until all shifting criteria has been met and the new mode/gear position has been reached (or has been engaged). Once the new mode/gear position is fully active, the switch indicator lamp for the new position will remain ON constantly.

Oct 06, 2018 | GMC Cars & Trucks

1 Answer

On my 03 Silverado z71, I have replaced the switch. I checked the fuses. The switch doesn’t light up and the dash says service 4wd.


The switch is just a input to the transfer case shift control module . Service 4wd message means DTC'S diagnostic trouble code's are stored . You need to take to a qualified repair shop that has a professional scan tool that can read these code's. How many button's on the switch ? 3 or 4 Which transfer case does your's have ?
Transfer Case - NVG 149-NP3
Transfer Case - NVG 246-NP8
Transfer Case - NVG 261-NP2
Transfer Case - NVG 263-NP1

The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel. When the ignition key is in the RUN position, the transfer case shift control module monitors the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria has been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly.

The NVG 263 transfer case features a three button shift control switch located on the instrument panel. When the ignition is in the RUN position, the transfer case shift control module (TCCM) starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. At a single press of the transfer case shift control switch, the lamp of the new desired position begins flashing to inform the driver that the TCCM has received the request for a new mode/gear position. The lamp continues to flash until all shifting criteria has been met and the new mode/gear position has been engaged. Once the new mode/gear position is fully active, the switch indicator for the new position remains ON constantly. In the event that the TCCM can not or will not complete the shift, the indicator returns to the previously selected position; this is a Transfer Case Shift Control Switch Indicator Flashes, then Returns to Previous Mode condition.

Both of these can set a few different code's
DTC B0790
DTC B2725
DTC C0306
DTC C0327
DTC C0359
DTC C0379
DTC C0550

DTC B0790
DTC B2725
DTC C0300
DTC C0305
DTC C0306
DTC C0321
DTC C0327
DTC C0359
DTC C0374
DTC C0379
DTC C0550

Your best bet , take it to a qualified repair shop.

Sep 01, 2018 | Cars & Trucks

1 Answer

2003 Silverado 4WD. Service 4WD dash light comes on after engaging 4WD and acts up by engaging itself randomly for several days, then goes back to normal.


Check connection at the 4X4 control module , check power and grounds . Do you know how to do basic electrical testing ? Does your truck have manual or automatic trans mission ? Which transfer case does yours have ?

The NVG 263 transfer case features a three button shift control switch located on the instrument panel. When the ignition is in the RUN position, the transfer case shift control module (TCCM) starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. At a single press of the transfer case shift control switch, the lamp of the new desired position begins flashing to inform the driver that the TCCM has received the request for a new mode/gear position. The lamp continues to flash until all shifting criteria has been met and the new mode/gear position has been engaged. Once the new mode/gear position is fully active, the switch indicator for the new position remains ON constantly. In the event that the TCCM can not or will not complete the shift, the indicator returns to the previously selected position; this is a Transfer Case Shift Control Switch Indicator Flashes, then Returns to Previous Mode condition.

The NVG 263 transfer case provides the driver with 4 manual mode/gear positions:
• 2HI - 2 Wheel Drive high range
• 4HI - 4 Wheel Drive high range
• 4LO - 4 Wheel Drive low range
• Neutral
Have it check for DTC'S - diagnostic trouble codes ?

DTC B0790
DTC B2725
DTC C0306
DTC C0327
DTC C0359
DTC C0379
DTC C0550

Your best bet would be take it to a qualified repair SHOP

Dec 28, 2016 | Cars & Trucks

2 Answers

Speedometer works when you hook a drill to transfer end but not when hooked up


There should be a small connector piece inside the housing that has a square end on it for the speedo cable to insert into on the t-case side. If this is missing/broken, the cable will not turn. You may also have a broken gear internally on the drive assembly. Remove the bolt holding the drive into the t-case and remove speedo gear for inspection

Oct 04, 2015 | Cars & Trucks

1 Answer

1998 Chevy K3500 transfer case issues


Contact your local transmission shop and see if this is a common issue. Most good shops will tell you. Also check with the local dealership parts department and see if there is a recall. Strange issue,.

Oct 27, 2017 | Chevrolet Cars & Trucks

1 Answer

******


transfer case is in neutral

Jan 20, 2013 | 2005 Dodge Durango SLT

1 Answer

Loud noise comming from the transfer case when I put the jeep in gear,and it won't go into all wheel drive


Sounds like you broke a gear in the transfer case you will need a tranny shop to check it.

Jul 03, 2011 | 1999 Jeep Grand Cherokee

2 Answers

How can you tell or know if your tranfer case is bad/well i just purchase a new 4wd switch,because i thought that was the problem.but now it will be in some strange gears on its own and what so bad about i...


If your transfer case is bad (broken fork, gear, shaft or something) It could engage both the low and the high ratio gears at the same time. The vehicle will not move if this happens even if you put your foot in it and try to power out of it. Two ratios cannot be engaged at the same time. Just by your description, it sounds like something like a shift fork or shaft has broken loose from the selection gear and this is allowing the gear to slide on its own unchecked, randomly engaging and dissengaging ratios. I would have a trustworthy shop take a look right away. Any reputable shop could diagnos a transfer case problem within an hour. The shop should charge 1 hour diagnostic time to tell if it is bad and what needs to be done to correct it. If they need to take longer than that then have them tell you why, and it better be good.

Good luck, and if you have any further questions- just ask!

Mar 31, 2011 | Chevrolet Silverado 1500 Cars & Trucks

3 Answers

Transfer case wont work


might want to make shure the shifter linkage arm is in gear. if the linkage is bent at all it will hold the trans inbetween gears not allowing the motor to spin the drive shaft

Jan 25, 2009 | 1989 Jeep Cherokee

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