Yes 4wd. Old I wasn’t to concerned about getting out so I just twisted and pulled. Getting the new in was the problem for me. Got them there but took longer than I expected and yes my face was covered in both rust and dirt.
What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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Neglect James, pure neglect on my part….
992dr
Full Access Member
Ordered some new plugs and wires.
Coming up on 100k miles on the plugs and wires tune-up and 250k miles on the clock.
O2 sensors will be following shortly.
Coming up on 100k miles on the plugs and wires tune-up and 250k miles on the clock.
O2 sensors will be following shortly.
check those heater hose "T"s on the firewall too, they only last so long, pretty much a maintenance item. they get brittle and snap off random.
992dr
Full Access Member
Thanks, I'll check them out this weekend and see if GMParts has them. Always a fan of preventative maintenance.
RooTBeeRthe1st
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I've had the parts waiting to go in for a while... waiting til I yank the engine. Don't feel like draining coolant just for those.
Another failure point besides the "Tees" themselves is the the plastic fittings from the heater hose that clips onto the tee. The one in the right pic is the one that failed on me twice. Breaks right off at that plastic band. That's why it is important to keep the stress of them with the holder that is located on the valve cover. Looks like pic #2.
gooffeyguy
Tom
Under the front end trying to change out the front axle gear oil. WHERE THE HELL IS THE FILL PLUG?
You loose very little. Take one hose off the tee and use a pump like this to suck coolant out of the hose down to a level where it won't spill out. Or just dump it into a small bucket. Keep the hoses tied up high so they won't fall down and drain out the system.
My 4wd unit was bottom facing rear of truck. Probably should be same for awd unit no?
gooffeyguy
Tom
I saw that but thought it was a mount due to the big washer area
Yes it does fool you. We are so used to have tiny ass fill holes not a gaping ass hole easy to fill so enjoy it LOL.
swathdiver
Full Access Member
It's that big one, A:
I just looked up the part numbers and GM says to use 75W90 synthetic now for the front as well. They used the same old ACDelco part number with a new GM part number and say we're to add the limited slip/locker friction modifier now (88900330)
So the new bottles say 10-4016/88900401.
Oh fill plug…. Missed that part or read it as drain plug…. Meh such is life
it's the upper one
it's been in the same place since forever on all of them
just fill it until some spills out the hole and put the cap back on
gooffeyguy
Tom
I would have done this Saturday when I was doing the rear end, but wife texted me saying we were going out to dinner after she got home so I wanted to make sure I had time to take a shower and get cleaned up.
My manual says that both the front and rear axles take the same stuff. GM #89021677. I bought 5qts of Mobil1 Delvac 75w90 and have about a half qt left over after doing both.
My manual says that both the front and rear axles take the same stuff. GM #89021677. I bought 5qts of Mobil1 Delvac 75w90 and have about a half qt left over after doing both.
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