Well, from the sounds of it, i would check all the mounts, the t-case and
tranny mounts anyway.
It also might be something with the front driveshaft since you said it only
does it in 4wd mode.
Last year i had the seals go on the fr. shaft, and it took out my transfer
case, so watch yourself on this one...
The Adam Blaster
Two words, figure it out.....
>
>
>
> I am hoping someone will be able to give me some clues as to
>where to check to fix a problem I am having with the 4x4 system on
>my Ram.
>
> The vehicle is a '92 Ram 4x4 with a 318 Magnum, NP241 transfer
>case, Dana 44 front, Chrysler 9.25" rear.
>
> Today, when driving on the (snow covered) roads at around 30-40mph
>in 4hi, the "4x4 engaged" light would quickly flash off, then back on
>again, and at the exact same time, there is a "clunk" that comes up
>from underneath the truck. If I had to guess I would say it is in
>the transfer case area, but I suppose it could also be somewhere on
>the front axle. It would clunk every couple of seconds or so,
>althouth it wasn't anything on a regular basis. Throttle application
>seemed to dictate when it would happen. I couldn't get it to clunk
>while coasting, but with some throttle, it would start doing it again.
> The more throttle or load it was under, the more severe the "clunk".
>I didn't do this a whole lot, because I didn't want to damage anything
>so I drove in 2wd the whole time except when I was playing with the
>clunk.
>
> Holding the 4wd lever back didn't make a difference, so I don't
>think it is the lever slipping. Also, it does it in both 4hi and 4lo.
>It was difficult to get it to clunk in 4lo, but it does. (driving on
>level ground or slight inclines didn't seem to make it clunk in 4lo,
>but I was able to do it by using about half throttle going up a
>steep hill.)
>
> This just started doing this today - I have been driving around
>for a week or two and this is the first I have noticed it. I have
>always gotten that clunk (or a very similar one) when going from
>2wd to 4hi (it would take a little while after pulling the lever,
>then it would clunk, and the "4x4 engaged" light would come on).
>However, before, it only "clunked" that one time, as it engaged,
>not continually.
>
>
> Recent service:
>
> I hydrolocked the engine in a mud pit back in October, and the truck
>has sat (inside) until about 3 weeks ago when I finally finished
>cleaning it up and putting the top end back together. After putting
>the motor back together, when driving around, it "seemed as if there
>was more drivetrain noise than before. It was due for diff fluid
>changes anyway, so I did the front and rear, and I also changed the
>transfer case fluid. (I used ATF+3). The only strange thing I
>noticed when doing this is that the transfer case did not take as
>much fluid as the FSM said it would. I don't have it right in front
>of me here, but I believe the spec is something like 6 pints, and
>I only put in about 2 quarts (4 pints) before it was spilling out
>the top fill hole.
>
>
> So, right now I am thinking it maybe has something to do with an
>insufficient fill, or maybe I should have used ATF+ instead of ATF+3,
>or perhaps it is a vacuum or electronics issue.
>
>
> Incidentally, another thing I just thought of is that all the times
>I have been driving it the past few weeks, it has sat inside a heated
>building - at 55-60 degrees F. Yesterday was the first time in a while
>I have let it sit outside all night. Perhaps that has something to
>do with it? It was still doing it even after driving the truck 20
>miles though and it was fully heated up.
>
>
> Any ideas or suggestions would be most appreciated. Thanks!!
>
>
> -Jon-
>
> .---- Jon Steiger ------ jon@dakota-truck.net or jon@jonsteiger.com
>------.
> | I'm the: AOPA, DoD, EAA, NMA, NRA, SPA, USUA. Rec & UL Pilot - SEL
>|
> | 70 Cuda, 90 Dak 'vert, 92 Ram 4x4, 96 Dak, 96 Intruder 1400, 96 FireFly
>|
> `------------------------------------------ http://www.jonsteiger.com
>----'
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This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:45:42 EST