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Chevy S10 - GMC S15 and Sonoma 4WD Issues

34 messages,  Last post on Oct 05, 2009 at 6:52 AM

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#1 of 34 1989 fourwheel drive problem by s1089 Jan 21, 2007 (10:05 pm)
ok so i have a 89 s10 extended cab 4.3ltr 4 wheel drive...kinda lol but ok here is the problem one day it worked fine and the next it wouldnt engage 4 wheel...i have no clue whats wrong with it...i know the drive shaft for the front end spins so its not the tcase i was wonderin if the front diff is vacume controlled i tryed pullin my skid plate off and i dont think anyone has takin it off before cause the last bolt tore the shit outa my knuckles lol but i did see somthin that looked like a o2 sensor and what looked to be a vacume line i think its a vacume line there are 2 lines that come off and i know one is the breather but i need some help the sooner the better...you might try emailin me with some info...chevelle8389yahoo.com thanks -mat Replies to this message: toneyg (Dec 19, 2007 6:45 pm) toneyg (Dec 19, 2007 7:00 pm)
#3 of 34 93 chevy S-10 4x4 disengage problem by harkins Nov 20, 2007 (5:52 pm)
I have a 93 chevy S-10 4x4 w/ 4.3 engine, and has 130K miles. Truck has a 4 high, and 4 low dash switch. The switch has a green light indicator for high position, and orange light for low. Lights may sometimes burn in two wheel drive without pushing switch, they may burn one or the other, may both burn at same time, or not at all like it should be in two wheel drive position. The problem is that you can engage the four wheel drive, but it will not disengage back to two wheel drive. When this happened I had taken it to a mechanic and he got it back to two wheel somehow. Does anyone have any suggestions on problem, or know what the mechanic may have done to disengage.                                                     Thanks,                                                      Jamie (stumped) Replies to this message: toneyg (Dec 19, 2007 6:57 pm)
#4 of 34 2002 S10 4Hi doesn't work by cyclonewoody Dec 05, 2007 (5:41 am)
I'm having trouble getting into 4Hi in my 02' S10. While in gear and moving, push the 4Hi button and nothing happens. Slow to a crawl, tranny in Neutral, push 4hi and both 4hi & 4lo lights flash but it kicks back to 2hi. Moving slow, tranny in Neutral, push 4lo and most of the time it kicks into 4lo, sometimes both 4hi and 4lo lights stay on or all lights are completely off, in this case, it's in 4lo but tranny won't shift and runs about 3000 rpm at 5mph. A couple of times I've pushed the right combo of buttons and got 4hi to actually work. Is this something electrical? Any help or suggestions on a fix would be appreciated. Replies to this message: 2003sonoma (Dec 12, 2007 9:55 am) bigjay897 (Mar 15, 2008 8:10 am)
#5 of 34 1995 gmc sonoma 4x4 vacum line question by mcclellan Dec 10, 2007 (3:00 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 34 Re: 2002 S10 4Hi doesn't work [cyclonewoody] by 2003sonoma Dec 12, 2007 (9:55 am)
Replying to: cyclonewoody (Dec 05, 2007 5:41 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 8:10 am)
#7 of 34 Re: 1989 fourwheel drive problem [s1089] by toneyg Dec 19, 2007 (6:45 pm)
Replying to: s1089 (Jan 21, 2007 10:05 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 34 Re: 93 chevy S-10 4x4 disengage problem [harkins] by toneyg Dec 19, 2007 (6:57 pm)
Replying to: harkins (Nov 20, 2007 5:52 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 34 Re: 1989 fourwheel drive problem [s1089] by toneyg Dec 19, 2007 (7:00 pm)
Replying to: s1089 (Jan 21, 2007 10:05 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 34 92 s15 jimmy by natosaskae Dec 23, 2007 (3:41 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 7:47 pm)

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