Re: 4WD problem

#1

On Wed, 10 Dec 2008 21:29:26 -0800, PerfectReign cast forth these pearls of
wisdom...:

Quote:

lt.stoops (AT) comcast (DOT) net turned on the Etch-A-Sketch and wrote:

1998 GMC Jimmy auto transmission with 3 button push for 4 WD. 4.3
engine. I was in 4WD and went to go out but it did not shift and went
to what I would call N. I had no power to any wheel. I put it in park
and hear a slight grinding and it when into 4WD. I managed to get it
home but it was like it popped out of drive and back to N and no power
to the wheels.

I changed the ball looking vac switch on top or the trasnsfer switch
but still have the problem. It will not shift into 4WD then it went to
no power again. I put it P and after playing with the buttons it went
back to 2WD.

Any ideas?

I had the '95 4WD SLE.

AFAIR, your vacumn actuator is shot. You need to check that.

Could very well be. It is worth disconnecting the battery for 20 minutes
or so and then re-connecting it. The Jimmy and Blazer both get confused on
rare occassion and this technique has been known to fix this problem.
Certainly worth the investment in your time.
--

-Mike-
mmarlowREMOVE (AT) alltel (DOT) net

#2

PerfectReign wrote:

Quote:

lt.stoops (AT) comcast (DOT) net turned on the Etch-A-Sketch and wrote:

1998 GMC Jimmy auto transmission with 3 button push for 4 WD. 4.3
engine. I was in 4WD and went to go out but it did not shift and went
to what I would call N. I had no power to any wheel. I put it in park
and hear a slight grinding and it when into 4WD. I managed to get it
home but it was like it popped out of drive and back to N and no power
to the wheels.

I changed the ball looking vac switch on top or the trasnsfer switch
but still have the problem. It will not shift into 4WD then it went to
no power again. I put it P and after playing with the buttons it went
back to 2WD.

Any ideas?

I had the '95 4WD SLE.

AFAIR, your vacumn actuator is shot. You need to check that.

Sounds more like the encoder motor on the transfer case. The front
actuator wouldn't make it have NO power to the wheels. Only a problem in
the T-case can do that.

--
Steve W.
Near Cooperstown, New York

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Re: 4WD problem

4x4 Chevy/GMC Trucks 4x4 Chevy/GMC Trucks Discussions (alt.autos.4x4.chevy-trucks)

Re: 4WD problem - 12-11-2008 , 08:17 AM

Re: 4WD problem - 12-11-2008 , 11:59 AM