2003 Chevy S-10 4wd no longer working

2003 CHEVROLET S-10

75,000 MILES • 6 CYL • 4WD • AUTOMATIC

DWATS6

MEMBER
2 POSTS
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2003 S10 Zr2. a few months ago I would hear a clunk periodically in the front end when it was in 4wd. Recently I noticed occasional "grinding" when putting it in 4wd and it gradually started where it was "grinding" when I was already in 4wd. So I had clunking and grinding in the front end when in 4wd. I determined that my 4wd was not engaging/staying engaged like it should. Now when I put it in 4wd nothing happens. The 4wd lights up but I have nothing. I have a few ideas of what the cause may be but I really dont know a ton about vehicles. Any help would be great.

Feb 26, 2009 at 12:47 PM

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MIKE H R

CAR REPAIR CONTRIBUTOR
3,094 POSTS

it is possible it is the electic shift motor on the trasnsfer case , it is located under the shid plate in the front transfer case. to replace it you will need to raise the vehicle , remove the tire on the passengers side. make sure the battery is disconnected before you start remove the steering nuckle and then the right driveaxle assembly then unplug the 4 wheel drive electrical connections, remove the retaing bolts then carefully remove the output shaft housing, it is somewhat of a job to do so you might consider taking it to a garage and get an estimate on fixing it.

Feb 27, 2009 at 8:45 AM

DWATS6

MEMBER
2 POSTS

Thanks, it was the shift motor in the transfer case causing the grinding and clunking and also a seal on the vaccuum which was causing it not to engage at all. I brought it to a shop my friend owns and got a good deal on it so it was better than dealing with the frustration myself.

Mar 3, 2009 at 11:26 AM