so i brought it in gave it a wash underneath and checked some stuff out. basically im out in the middle of nowhere right now, not gonna be able to see a dealer for another few weeks as im out of the city on vacation and i would like to have 4x4 out here so if i can fix this myself then great.
anyway, i pulled the im assuming filler plug on my front diff, it was on passenger side about 1/2 way up the diff, opened it and couldnt feel any fluid with my finger, so if that plug is a filler plug then it should be full up to the level of that hole correct? fluid color was a milky white, this also tells me there is water in there, unless the diff fluid is white? I know for a fact neither of these diffs have EVER been submerged in water, or even super wet aside from the rain. So basically i have what looks like a half empty front diff with milky white fluid in it. Its been parked in the same garage every night and i know its never leaked out any diff fluid in the 2 years ive had it.
So if im right, its low on fluid, ill get some 80w 90 which the manual says should be in there (1.8L) is there a drain plug on the front diff? i never saw one, so im guessing the diff cover has to be taken off to drain the fluid.. if i do this is the seal going to be ok for re-use?
And now on to the other part, i checked the vacuum lines going to each front tire. Had girlfriend in the drivers seat helping me out.
Started truck in park, 2Lo, - pulled off each vac line (2 on each tire) and felt no suction
she put it in 4Hi while truck running in park - still no suction on any of the lines
switched it back into 2Lo with truck still in park and no shifting gears - Passenger side vac line now has suction, feels very strong, go over to the drivers side and pull vac line off and there is no suction.
So in short, no suction on any of the lines until you switch it to 4Hi, then back to 2Lo. Im no expert but it seems like thats not how its supposed to work. If Shelby or anyone else can help me out here id be so happy.
"The Dark Knight"