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No forward gears only reverse

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Old Dec 18, 2023 | 03:36 PM
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  #21  
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Originally Posted by miron
Hmm, next thing i'd probably do is to get the tcase in low, switch on the M mode unplug the transmission harness plug and switch the gears and check if you are getting voltage on the pins corresponding to solenoids. This will require getting all four wheels off the ground. If you are getting current on the pins then test the resistance on solenoids (by measurnig across pins in the socket), if that is ok then i'd proceed with test in my previous post.
today it’s pouring out and all the ice was gone so when I got home from work I tried to put the transfer case in low and use Manuel to go forward. Nothing in 3, 2, or 1 so I utilized only having reverse to move the car out of the way. My first day of vacation on Wednesday I’m gonna swap the battery with a newer one I just got for my suburban. See if it’s voltage issues if not looks like I’m gonna have to tear apart the transmission right
 
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Old Dec 18, 2023 | 04:40 PM
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Have you checked your voltage?
 
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Old Dec 18, 2023 | 04:42 PM
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Originally Posted by Harvlr
Have you checked your voltage?
I don’t have a voltage reader so I’ll just swap it with a brand new battery
 
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Old Dec 18, 2023 | 05:04 PM
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Originally Posted by ONeil64
I don’t have a voltage reader so I’ll just swap it with a brand new battery
get an UltraGauge. you can monitor voltage, amongst many other things, with it.
 
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Old Dec 18, 2023 | 05:10 PM
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And you can buy a cheap multi meter for under $20
 
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Old Jan 5, 2024 | 10:53 AM
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Originally Posted by Harvlr
And you can buy a cheap multi meter for under $20
I got a multimeter running at between 14.11 to 14.24 also just replaced xyz switch still no forward gears
 
Last edited by ONeil64; Jan 5, 2024 at 11:06 AM.
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Old Sep 5, 2024 | 02:37 PM
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Originally Posted by ONeil64
I got a multimeter running at between 14.11 to 14.24 also just replaced xyz switch still no forward gears
Same problem. Did you find a solution?
 
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Old Sep 5, 2024 | 06:04 PM
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Typical ZF failure mode on D2 is failed forward clutch, trans has to come out to fix. Probably a good idea to get a good used one and just swap.
 
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