how important is the transfer case fluid? and what happens if you run the truck without any transfer case fluid?

Asked by Dec 16, 2014 at 06:27 PM about the 2005 GMC Sierra 1500 SLE 4WD Extended Cab SB

Question type: Maintenance & Repair

about a week ago i was trying to change my oil filter and pulled the wrong plug and
this dark blueish fluid came out and after a little research i found that it belonged to
the transfer case. I talked to a guy at autozone and he said if its dark blue then its
extremely dirty and only a gm dealer can get new fluid but i haven't had the time to
take my truck to the shop but the pass few days the steering has become wobbly
and theres a lot of play just trying to go straight. And last night  my service 4wd light
came on. i know i need to take it in but was wondering just how badly i screwed
myself lol

2 Answers

223,295

Only way to know is to have a mechanic look at it. You might be OK, putting new fluid in, but depending on how hot it got, it might have worn down some parts inside the case requiring replacement.

1 out of 1 people think this is helpful.
3,785

That transfer case is working to keep the parts lubricated! Get it done immediately! Bearings, shims, this could be a very costly mistake! The pump works in either case that is, whether or not you are in engaged in 4WD . Good luck! Check for oil pump rubbing on your transfer case while youre in there! Google pump rub! If this helps click my helpful link

5 out of 5 people think this is helpful.

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