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Chevy S10 - GMC S15 and Sonoma 4WD Issues

25 messages,  Last post on Sep 26, 2008 at 9:20 AM

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#5 of 25 1995 gmc sonoma 4x4 vacum line question by mcclellan Dec 10, 2007 (4:00 pm)
I have a 1995 sonoma 5 speed manual tranny, the 4 wheel drive does not work, I found a vacum line off by the transfer case but I can not find where it is suppose to be attached, any help or diagrams would be appreciated.
#6 of 25 Re: 2002 S10 4Hi doesn't work [cyclonewoody] by 2003sonoma Dec 12, 2007 (10:55 am)
Replying to: cyclonewoody (Dec 05, 2007 6:41 am) I had the same thing happen last winter. Try disconnecting your battery for a few minutes to reset the computer. Worked good for me..... Replies to this message: bigjay897 (Mar 15, 2008 9:10 am)
#7 of 25 Re: 1989 fourwheel drive problem [s1089] by toneyg Dec 19, 2007 (7:45 pm)
Replying to: s1089 (Jan 21, 2007 11:05 pm) on ur passenger side fender under the hood is a vacume module the line may be disconnected or you might have a break in the hard plastic going down to your transfer case. the only other thing it could be is the vent tube under your trk is clogged up
#8 of 25 Re: 93 chevy S-10 4x4 disengage problem [harkins] by toneyg Dec 19, 2007 (7:57 pm)
Replying to: harkins (Nov 20, 2007 6:52 pm) Jamie, the mechanic probably put it in neutral then shifted in to 2 wheel drive, then backed it up for 50 to 100 feet then put it in park and then back in to drive
#9 of 25 Re: 1989 fourwheel drive problem [s1089] by toneyg Dec 19, 2007 (8:00 pm)
Replying to: s1089 (Jan 21, 2007 11:05 pm) on your passenger side fender under the hood is a vacuum module, the line may be disconnected or you might have a break in the hard plastic going down to your transfer case. the only other thing it could be is the vent tube under your truck is clogged up
#10 of 25 92 s15 jimmy by natosaskae Dec 23, 2007 (4:41 pm)
my switch blinks and clicks under dash actuated under battery is moving but no engagement for my 4x4 vacume seems to be working disconnected at transfer case and is sucking 3 vacume lines 1 sucks at transfer case when you push the switch and when you dont press the switch its the same Replies to this message: cricket99771 (Feb 09, 2008 8:47 pm)
#11 of 25 85 S10 4x4 ext.cab truck by toneyg Dec 27, 2007 (7:19 pm)
my question is, will a 3800 engine swap out a 2.8 engine already in my truck. I have over 350,000 miles on this truck and this 2.8 is my 2nd engine in this vehicle. this truck still looks beautiful and clean. I'm just wanting to get a little more power now since I have lifted it. I put in a 4" frame and a 2" body lift and put 31x10.50x15 tires on it. A 4.3 swap won't work due to the transmission hook-ups at the bell housing on the 2.8 is smaller than the 4.3. If the 3800 engine won't swap,then how far can I bore the cylinders out and how much cam can I put in it, to get more power to the wheels. This tire size change seems to need more power to turn them especially off road and in the the snow and ice. Someone please help me in this matter or offer any suggestions. Don't want a new truck. I have had this truck since Sept 1984 and bought it brand new off the show room floor in Texas, and kept it in near perfect condition. thank you for all input.
#12 of 25 4 whl drive stopped working by alrata Jan 14, 2008 (7:46 pm)
99 S-10 4 whl drive stopped working, the transfer case is a 233. the controler solinoids are clicking but not sure if motor is working on transfer case. The dash switches read 2 whl high and blink when I try to engage the 4 whl high but it stays in the 2 whl high mode. What is the most comon cause of failure, the vacuum operated cable to the diff or the transfer case motor and how do I check? Thanks for any help!
#13 of 25 '03 Chevy S-10 ZR2 by romaddog Jan 15, 2008 (10:05 am)
I have a '03 Chevy S-10 ZR2 the 4WH light is on in on my controls and the truck is not in 4WD.... when i press the button to put it in 2wd nothing happens and it also will not go into 4L... any ideas.....   Thanks Replies to this message: 0128 (Jan 30, 2008 7:21 pm)
#14 of 25 4x4 problem by justakid Jan 28, 2008 (1:52 pm)
I have a 00' s10 4.3L 4x4. I took it in the snow when I first got it and when in four wheel drive I put it in reverse and the front end wouldn't work. it would clunk and sound like something was spinning on the front passenger side. never messed with it too much, knowing its a vacuum setup and not knowing much about it. just recently used the four-wheel drive again and had the same problem......then it started to pop out of four-wheel drive while going forward too......any help or advice or links would be much appreciated

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