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I'm about to order a new transfer case motor for my wife's '99 Yukon SLT. The switch lights up and I hear the click under the dash, but no 4WD, so I'm figuring it's the motor. Anyway, at rockauto.com they list 4 different parts. How can I tell which one I need for my wife's Yukon? Thanks in advance!

I almost hate to say anything as it's been less than 2 weeks (as it was an intermittent problem, it could recur if this wasn't the fix), but so far no more problem. Other posts in this forum stated that if the tachometer isn't showing the engine turning over while starting, then it's the...

Had the same thing happened yesterday. This was my first chance to post. Anyway, before I even saw any replies I tried wiggling the battery cables at the battery. It eventually started with no further problems. There is no date on the battery for the warranty and it seems to be an older...

Yeah, I know there isn't any warning on when the fuel pump goes it. I've only had the Yukon about 3 weeks now, but with 135,000 miles on it and no idea whether the fuel pump was ever replaced, I'm going to just do it anyways. I have seen some posts that show the AC Delco pump should last around...

Having *another* problem with the '99 Yukon SLT. After driving it with no problems, once I turn off the ignition to park it, everything goes dead and the security system (alarm) starts making really quiet, low-pitched chirping sounds for a few seconds. No power locks or anything. Just completely...

After cleaning up a grounding strap to try and fix the vibrating fuel guage needle, I noticed the fuel pump being really noisy while the Yukon was idling. I'd never noticed this noise before. Are they typically noisy enough to be heard while standing next to the vehicle while it's idling? I...

I just changed the crankshaft position sensor and it started and ran fine, but I'll have to wait a week or so to see if this fixed the problem. Also, the sensor is in the front of the engine and relatively easy to access and replace. It takes an 8mm socket and that's it. At this point with...

There's a grounding strap coming off a hard fuel line and connecting to a part of the lower body right in front of the rear bumper. I figured maybe this was the one to check. I unbolted the grounding strap from the body, cleaned it up, bolted it back on, and now a new problem! The gas guage is...

Thanks for the reply! I have a Chilton's manual in transit, but I'm wanting to replace the crank position sensor ASAP in the hopes that this cures the problem of the engine cutting out.

I previously posted about a problem starting the Yukon and then having it die after it has been running fine previously. I'm thinking it's the crankshaft position sensor and I'm going to replace it. Can someone tell me where it is located? I've found 2 references and they have it in different...

Well, KBB value on the '99 Yukon I just bought my wife was around $5,600. It is an SLT with leather & tow package and 134,000 miles. I bought it from a used car dealer for $2,200 a week ago, so it looks like I got a better deal than I thought. I think market value here in California is around...

UPDATE: Well, after going almost 2 days without the problem, it happened again tonight. After driving fine all afternoon, it was hard to start and kept stalling when I went to leave. It stalled a couple of times when I put it in gear, but then drove fine to the grocery store. Started up and...

Thank you Pete! I just got the Yukon for my wife about a week ago, so I have no idea what the history of it is. As I mentioned in the original post, it was driving fine and just started doing this a few days ago. I understand that it is most-likely electrical in nature, but what would...

Yes, the cables are looking good and no corrosion on battery terminals. The Yukon hasn't had the problem at all today, but late this afternoon I cleaned the MAF in hopes that this may be the problem.

I've searched the forum and found some similar issues, but figured I'd post with the exact problem. I just bought a '99 Yukon a week ago and it was running fine. Passed smog inspection with no problem so I'm assuming the catalytic converter is okay. Anyway, what is happening now is that...

I just ordered the Chilton's for my wife's Yukon, but would anyone be kind enough to point out where to look for the ground so I can try and fix this issue in advance? I have the vibrating fuel guage problem as well. Thanks!

In doing research before I bought my wife's 99 Yukon I saw that a common problem is the intake manifold gasket leaking. There was a TSB on it as well. Apparently the gasket leaks which causes coolant to enter the combustion chamber and be evaporated. So, coolant loss without any noticable leaks...

sorry, reposted in correct forum.