Splorg
Full Access Member
Sorry for almost certainly duplicating another post. I tried to search for this specific problem, there are so many permutations that I can't seem to find my exact symptoms.
Last Friday night my water pump quit (2001 Yukon SLT 4WD 5.3L) Being a cheapskate, a friend brought out his truck and trailer and we trailered it the 19 miles to my mechanic and saved $300 on a tow (!!!). It was a wooden decked trailer with metal ramps, and since it was raining (it's never dry when you have to fix something in my personal experience), the ramps and the deck on the trailer were *very* slippery. No big deal, I have four wheel drive and good tires.
Well, apparently I don't.
When shifting from 2HI to AUTO or 4HI at traveling speeds, the LED blinks a few times, there is a mild but still audible noise as the front end of the drivetrain (I assume the hubs) lock and spin up, the LED goes solid, and away you go. However in attempting to get my Yuke up onto the trailer it's obvious the front is pulling nothing at all, either in AUTO or 4HI, even though the switch panel indicates a successful shift and there is no "SERVICE 4WD" warning from the GM Omni-Idiot-Light. First tried auto. Rear broke traction some, no action from front. Backed off the ramp, shifted to 4HI. Same deal, rear spins, front doesn't do a thing.
That being said, there were some extenuating circumstances. The battery charge was awefully weak at this point - I don't know if low current could affect the trucks ability to shift the transfer case. Also, it wasn't as if I could take it for a short drive to give it a chance to "lock in", I had a few feet, no accessory drive, and a few minutes at most to run the thing into the trailer before it overheated or the battery no longer had the charge to drive the ignition.
I don't have any idea with only one shop jack and very little space at home how to test the thing and see if it's actually working now. I tried a steep, grassy frozen hill at my mechanics at his instruction and the old girl went up, but the rear end did break traction briefly before starting to move uphill again. Not sure if this was my magic G80 rear end doing it's thing or what.
So, what do I do to test this, given the roads are cold but bare and dry; or is this a cut and dried case of needing a new transfer case or something given the fact that it *says* it's shifting and engaged but clearly isn't?
Thanks in advance. The weather forecast is making me nervous without knowing if the stupid thing works.
Hope everyone had a great holiday!
Sent from my SM-S727VL using Tapatalk
Last Friday night my water pump quit (2001 Yukon SLT 4WD 5.3L) Being a cheapskate, a friend brought out his truck and trailer and we trailered it the 19 miles to my mechanic and saved $300 on a tow (!!!). It was a wooden decked trailer with metal ramps, and since it was raining (it's never dry when you have to fix something in my personal experience), the ramps and the deck on the trailer were *very* slippery. No big deal, I have four wheel drive and good tires.
Well, apparently I don't.
When shifting from 2HI to AUTO or 4HI at traveling speeds, the LED blinks a few times, there is a mild but still audible noise as the front end of the drivetrain (I assume the hubs) lock and spin up, the LED goes solid, and away you go. However in attempting to get my Yuke up onto the trailer it's obvious the front is pulling nothing at all, either in AUTO or 4HI, even though the switch panel indicates a successful shift and there is no "SERVICE 4WD" warning from the GM Omni-Idiot-Light. First tried auto. Rear broke traction some, no action from front. Backed off the ramp, shifted to 4HI. Same deal, rear spins, front doesn't do a thing.
That being said, there were some extenuating circumstances. The battery charge was awefully weak at this point - I don't know if low current could affect the trucks ability to shift the transfer case. Also, it wasn't as if I could take it for a short drive to give it a chance to "lock in", I had a few feet, no accessory drive, and a few minutes at most to run the thing into the trailer before it overheated or the battery no longer had the charge to drive the ignition.
I don't have any idea with only one shop jack and very little space at home how to test the thing and see if it's actually working now. I tried a steep, grassy frozen hill at my mechanics at his instruction and the old girl went up, but the rear end did break traction briefly before starting to move uphill again. Not sure if this was my magic G80 rear end doing it's thing or what.
So, what do I do to test this, given the roads are cold but bare and dry; or is this a cut and dried case of needing a new transfer case or something given the fact that it *says* it's shifting and engaged but clearly isn't?
Thanks in advance. The weather forecast is making me nervous without knowing if the stupid thing works.
Hope everyone had a great holiday!
Sent from my SM-S727VL using Tapatalk