Question about 1999 Ford Expedition

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1999 expedition clunks when in Auto 4wd on slippery pavement.

When I stop somewhere and its slippery and hit the gas a little more than babeying it it makes a clunking noise. Truck has 114,000. Transmission fluid changed 20K ago. It dosen't do it when in 4wd.

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  • tooties4 Jan 30, 2009

    my expedition does the same thing. its all wheel drive and when i take off in it and get on the gas alil it makes a clanking noise like something slipping. i took the fuse out that went to the 4x4 shift motor and cluch and it stopped. the back wheels still turn but i dont think that the front ones are working



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That sounds like play in your rear end, it usually happens to all RWD vehicles at some point in their life, and also, check your U-joints, and tranny fluid. If low on fluid, your trans can slip causing a lag in shift.

Posted on Jan 30, 2009


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1997 tj jeep 4 w.d. lever will not stay engaged. Will shift but will come out of 4 w.d.

with 4wd , the 4wd drive lever not the main trans.
this is part time 4wd, and is not for dry pavement
dry means , devoid of ice, and snow.
that is why its called Part time and not full time 4wd.
so what are the tires touching, we cant see you ?
dirt (all offroad, 4wd works)
pavement (no)
ice (yes)
snow (yes)

one tire must be on a slippery surface or bad happens to
YOU and the drive line. and others, you hit.

i guess you deleted your other post
then added it again. or did it anon.,?
I answsered this yesterday, on TJ.
command trac , jeeps.
we have the manual if you would like to read it.

But for sure, truth can be stranger that fiction.
seems.? like
seem everyone wants to hear lies. ( the lie is short sweet)
change the oil. (gear lube)

Dec 30, 2016 | Jeep Cars & Trucks

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Major clunk coming out of 4 wheel drive on the highway

Check to make sure all of your drive shaft U joints are in good condition. Unless you have a full time 4 wheel drive you shouldn't run on dry pavement in 4 wheel drive for very long as stress builds up in the drive system. 4 wheel drive is best for slippery roads/mud/ dirt conditions.

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4x4 will jerk when going around corners or curves if you hit a dry spot in the pavement. 4x4 only on slippery surfaces.

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My mothers Jeep make a loud popping noise when it's in 4wh low and turning shap on pavement. someone told me it might be the chain in the transfer case. Is there a chain in the transfer case? I thought...

Yes there is a chain in the transfer case and yes it could be a u-joint also. You shouldn't be in 4wd high or low on pavement. this is what happens and it can be very expensive to fix. Check all your u-joints first as they're easiest. Is this jeep setup with ujoints inthe front axle or are they cv-joints? good luck... and use 4wd properly only on slippery surfaces!

Jan 17, 2011 | 1999 Jeep Grand Cherokee

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My 2000 Expedition seems to bind when making left and right turns. The back wheels appear to be dragging.

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Jan 15, 2010 | 2000 Ford Expedition

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1999 explorer in 4-high on slippery road there is clunking

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4x4 transimission clunks when engaged?

When engaging the 4WD system, you are pulling the lever on the Transfer Case right? Not the transmission, it's a different gearbox.
There were several versions of transfer cases that used both full and part-time 4 wheel drive.
From your description this sounds like a part-time transfer case.
Going with that, it is somewhat normal to hear and feel a mild clunk when engaging 4WD high range, especially if you are at a complete stand-still or under full throttle.
Try engaging 4WD High while slowly rolling at idle - no throttle. It should pull in fairly smoothly.
Once 4WD is engaged it will literally LOCK the front and rear axles together. So do not do it on hard dry pavement.
These older style 4WD systems need a little "give" especially when turning. The engineers assume you are not engaging 4WD unless you are in a somewhat slippery scenario.
Many CV joints, axles, U-Joints, differentials, and transfer cases are damaged and broken by folks who don't understand this.
Reading the owners manual should provide a clearer description of what you've got.
Bear in mind that when you come out of 4WD it may not completely release, again due to hard pavement binding up the axles. You can try this: backing up 10-25 feet in a straight line, or getting one set of wheels on the shoulder or in some gravel. That should allow it to release the transfer case and go back to everyday 2WD high.
I hope this helps.

May 14, 2009 | 1996 Jeep Grand Cherokee

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