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Re: 4WD troubleshooting on Laredo'91

Me again...

So I got my car back with one vaccum line replaced. I don't think I am
done yet...

I tried the various mode 4H, 4L and I have noticed the "Part Time"
light is not on when I switch from 2W to 4H, turn on from 4H to 4L and
then stay on when moving back to 4H. It disappears when switching back
to 2W. I suppose the light should turn on when I switch to 2H ? Is it
possible the linkage may require some adjustment ? I have the process
in my Chilton but obviously I don't want to play with that if I don't
have to.

Now, I have also an intermittent noise at speeds under 35mph (like a
flow of air through a tube/somehow metalic but no vibration). It
apparently tends to appear mostly when I am decelerating. I am unable
to diagnose exactly when. It's not at all persistant, it just comes
and goes only when I am moving. For sure it's under the car as it's
much more distinct when I open the windows, it's coming from the
passenger side, in the front. Any ideas ???

Thanks !

Lionel

On 6 avr, 13:51, "Lionel" <lionel.pawlow...@gmail.com> wrote:
> Hi all,
>
> I didn't have a chance to check your advice since I am quite poor in
> terms of tools to do the job but I am pretty sure there would have
> been useful. I had to go for some oil changes and a couple of things
> after being stuck again in the snow (you feel quite stupid to see your4wdcar needs some help while a regular car can do the job on a
> standard parking lot covered by snow). It appeared one of the vacuum
> lines was dead. The car is still at the shop for an alignment problem
> I've noticed after my long drive from California to Maine ($$$ in
> repairs ahead) but I should be good after that unless the Maine safety
> inspection reveals something nasty.
>
> Lionel
>
> On Mar 18, 5:21 pm, Will Honea <who...@yahoo.com> wrote:
>
>
>
> > On Sun, 18 Mar 2007 13:50:37 -0700, Lionel wrote:
> > > Hi all,
>
> > > I was stuck in the snow today and I've noticed my4WDmode does not seem
> > > to function well. As I've never had to use it before on this jeep I
> > > bought used, it's hard to me to tell which is fine and not fine. Here
> > > are some symptoms:
>
> > > 1) there is not indicator saying I am in4WDmode. Some search on the
> > > internet suggest the the vacuum switch is dead. Is this switch only
> > > linked to the light bulbs or does it affect the whole functionning of
> > > the4WD?
>
> > > 2) I can feel when the jeep is in 4L but I don't feel much difference
> > > between 2WD and 4H modes. Is this normal ?
>
> > > 3) after being in 4L, switching from N to 4H is hard. While driving in
> > > 2WD, there are no unusual noise. Acceleration in 4L is not smooth.
>
> > > Any ideas ?
>
> > You should make a habit of cycling through the4WDoptions every few
> > months just to keep things greasy - like the front drive line.
>
> > Big cause of no light is a burned out bulb - but here's the easiest way
> > to check what is really happening.
>
> > Jack both front wheels off the ground with the rear wheels chocked. MAKE
> > SURE THE TRANSMISSION IS IN NEUTRAL AND RECHECK BEFORE DOING ANYTHING
> > WITH THE SHIFTER!! With the engine running, shift the transfer case to
> > 2HI. Spin one front wheel and the other one should just sit there (I'm
> > pretty sure the 91 still had the axle disconnect). If both wheels spin
> > (usually in opposite direction), then reach under and try to turn the
> > front drive shaft. It should turn by hand. Now start the engine and
> > move the transfer case shift to the 4HI position. Turn the engine off and
> > check the front wheels again. Both should definitely spin if you spin
> > one. If only only one turns, you do have the axle disconnect and it
> > ain't working. You should NOT be able to turn the front drive shaft by
> > hand - if you can turn it, then the transfer case is not going into the
> >4WDmode. If you can't turn the drive shaft and only one front wheel
> > turns when you spin it, the problem is either the shift motor on the
> > front axle or a vacuum problem. If both front wheels spin but you can't
> > turn the drive shaft by hand, you are pretty certain to have a
> > functioning4WDand it's either a burned out bulb, a wiring problem to
> > the switch or a bad switch. If the check shows a problem, it's likely
> > either a bad vacuum switch on the transfer case or bad vacuum lines from
> > that switch to the front axle.
>
> > --
> > Will Honea <who...@yahoo.com>- Hide quoted text -
>
> > - Show quoted text -- Masquer le texte des messages précédents -
>
> - Afficher le texte des messages précédents -

Re: 4WD troubleshooting on Laredo'91