TJCamro
Bone Stock
Posts:9
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| 01/31/2007 10:10 PM |
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| I have a 2000 Sierra 1500, I tried to shift the truck into 4 wheel by pushing the button and it just flashes for awhile and then goes back to 2hi. I can hear the T-Case motor when i push the buttons. I replaced the switch setup itself but that didnt fix the problem. So I was wondering what the problem could be. Is it the front acctuator or the indicator light switch on the T-Case? |
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TJCamro
Bone Stock
Posts:9
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| 01/31/2007 10:33 PM |
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| I forgot to also put that the Auto4 flashes also. |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 4:51 AM |
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| You might try pulling the fuse for it and waiting about a minute and then replacing it which reboots the encoder/servomotor control system and see if that helps, otherwise you may be looking at a new encoder servo motor. (the joys of push button 4x4) |
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TJCamro
Bone Stock
Posts:9
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| 02/01/2007 8:23 AM |
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| where is the encoder servo motor located? Is it the T-Case motor? |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 11:21 AM |
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quote:
Originally posted by TJCamro
where is the encoder servo motor located? Is it the T-Case motor?
No it is exteranlly located on the front of Tcase on drivers side between front drive shaft yoke on tranny input to Tcase. (not easiest place to get too) The contorl module or "brain" for it is located in lower dash board behind panel. |
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TJCamro
Bone Stock
Posts:9
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| 02/01/2007 11:41 AM |
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| ok so where is the fuse so I can pull it? the only 4x4 fuse i found was by the drivers door. And if the part is bad where can i get one? |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 12:13 PM |
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It is fuse number 24 and it is a 20 amp according to my manuals. BTW, you have a NVG 246 NP8 Tcase and you should be able to get the encoder motor at a auto parts store if need be. Try resetting and rebooting system first. |
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TJCamro
Bone Stock
Posts:9
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| 02/01/2007 12:34 PM |
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| I looked through my fuses and I cant find that fuse on either fuse block. So where is the block located that the fuse is on? |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 5:06 PM |
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| It says Power Distrubution Cell 10, fuse number 24 marked as 4WD and it is 20 amp, but, in another schematic (and these are GM books) a complete system schematic says that the fuse is number 2 and labeled Tcase 20amp in IP block. THis diagram shown wiring for everything in 4s4 control system and it shows a orange wire coming from that block that feed both encoder and control unit hooked to fuse number two. (and some wonder why I would never own a pushbutton 4x4) |
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TJCamro
Bone Stock
Posts:9
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| 02/01/2007 7:17 PM |
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| Okay the only one that I can find that says 4wd is a 15amp. So i wonder if its the wrong fuse then. I am going to replace the front acctuator and the 4wd light/acctuator on the t-case too. Hopefully I can get this figured out. Thanx sno-man |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 7:26 PM |
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quote:
Originally posted by TJCamro
Okay the only one that I can find that says 4wd is a 15amp. So i wonder if its the wrong fuse then. I am going to replace the front acctuator and the 4wd light/acctuator on the t-case too. Hopefully I can get this figured out. Thanx sno-man
I have schematics if you need them. You should check for OBD2 codes too because it lists several of them for that 4wd system. |
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webby4x4
Forum Admin, Magazine Editor
Rock Star
Posts:2375
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| 02/01/2007 7:35 PM |
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| This may sound overly obvious, and I'm certainly not trying to insult your intelligence or sound flippant, but you might want to thumb through a repair manual at your local auto parts store. Heck, you might even want to spend the $12 and buy it. [)] |
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Rick Webster
Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication
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'74 FJ40 Land Cruiser
"Measure once, cut twice" |
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TJCamro
Bone Stock
Posts:9
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| 02/01/2007 7:37 PM |
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| yea that was my plan this weekend. just been so busy with work. thanx again guys |
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SnoMan
Lift & Lockers
Posts:943
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| 02/01/2007 7:40 PM |
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quote:
Originally posted by webby4x4
This may sound overly obvious, and I'm certainly not trying to insult your intelligence or sound flippant, but you might want to thumb through a repair manual at your local auto parts store. Heck, you might even want to spend the $12 and buy it. [)]
Better yet, check out a local library. I have actual GM dealer manuals here on that rig and they are as clear as mud sometimes so it is no wonder that they do not fix your vehicle right sometimes. |
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TJCamro
Bone Stock
Posts:9
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| 02/05/2007 7:42 PM |
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| It was the front acctuator it was completly burnt up.
Thanks for the info you guys gave, but it was heading the wrong way. |
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