Searched the forum, but just cant find a post similar to my problem.
Came back from the snow today and had the truck in 4L and 4H during the snowy portion of the ascent and descent. When I put the XL7 back into 2H, the truck sounds like it is "stuck" in 4wd?
What I mean by that is that the transmission or something else winds up real fast and sounds like the RPM are really high. My tach RPM's are fine, but something sounds like it is revving real high. Once I hit about 30- 40 MPH, it got real loud and when you take your foot off the gas, it slows down real quick.
Any thoughts? Thanks in advance,
Okay, let car cool down and ran transmission back and forth through P, R, N, D, 2, L. Started it up and all is fine. What the heck?
yea somehow it was stuck in low. Like I always preach.. EXERCISE THE 4wd!!! all year long! Ill bet last time it was in 4wd was a year ago.. You also have to be sure you put in in and out of 4wd with the wheels pointed straight. If thery are turned it will not come out of 4wd
yep, check the pump, norm when selecting 4h or 4l it will pump air into the transfer case and difs to lock them into the selected modes. When going back into 2 wheel drive it should release air, if it doesnt the diffs and transfer case will still be locked.
To release it you should see the acutator pump behind front bumper next to the horn. There will be a hose attached to it, if you disconect it, it should release the air presure.
If this manages to fix it, i would get the pump checked. If it doesnt, it most likely be a prob with the transfer case. Nothing serious, as its happend to me before, mine was just low fluids, and also at one time mud was covering the pump so cleaned it.
I would upload the manual for the dif and transfer case but its 6.5meg
Also...when was the last time you changed your gear oils? Old oil will thicken up, loose some of it's lubricity ESPECIALLY when cold, and keep those diff and x-fer case parts / levers / clutches from actuating freely.
'99 Grand Vitara JLX, 2.5L V-6, 4WD, 5 spd std, '00 "Limited" leather interior. OE center armrest, alarm, Fog lights & Sirius radio.
'53 Chevy 3100 Pick-up w/327 SB, TH400 trans w/78' Nova rear end.
'03 Honda Odyssey (Momma's ride)
'72 Chevy Nova. One owner, SB, A/C, power disc/drum & steering.
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