Question about Chevrolet S 10

Open Question

2001 s10 sonoma 4wd not working

I have checked everything and replaced vacuum lines and actuator cable and the vacuum switch on the transfer case, i can hear the encoder motor running and the tccm clicking when i hit the butons on the dash and te just blink twice and go out. i checked the codes using data link pin 13 and only came up with a code 1, what else could it be? i believe it to be the tccm

Posted by on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 36 Answers

SOURCE: how to change 4 wd motor(actuator) 1997 s10

Before changing the actuator check the vacuum lines at the vacuum switch on the left side of the transer case if they are wet with transmission fluid the the switch is bad and that will prevent 4wd from engaging.

Posted on Jan 15, 2009

  • 1 Answer

SOURCE: 95 Blazer 4X4 Problem

Ok I just got my 4x4 working again. I got it to work by taking out the 4wd, brake, and I believe the ctsy fuses for about one minute each and put them back in and now my 4x4 works like it used to. If that works for anyone else great, but if not then good luck finding a better solution to the 4x4 problem.

Posted on Feb 03, 2009

  • 462 Answers

SOURCE: 4wd issues!!! When I start the truck, all 3

THE 4WD SWITCH IS A PROBLEM. ALSO THE GROUND CONNECTOR ON THE FRAME CLOSE TO THE DRIVERS DOOR IS A PROBLEM. IT USUALLY HAS A COATING OF THE UNDERCOAT MATERIAL ON THE FRAME THAT IS NOT REMOVED BEFORE THE CONNECTORS ARE PUT IN PLACE.

THERE ARE 2 BOLTS THERE THE OTHER IS AN ABS GROUND CLEAN OFF THE UNDERCOATING FIRST, PUT DIELECTRIC GREASE ON THE CONNECTION POINTS, THEN COVER THEM IN SPRAY ON UNDERCOATING. THIS IS A CHEAP FIX TRY IT FIRST.

RATE ME PLEASE.

Posted on Jul 24, 2009

  • 173 Answers

SOURCE: 4wd lights still flash but had a code of P0700 as well

HI this truck tccm and the switches when you have this your 4wd will not engage

Posted on Sep 23, 2009

  • 32 Answers

SOURCE: 4wd light flashes and have replaced the front

after looking at the schematics for this vehicle, I can say with great certainty that you might have something wrong in your front axle on a straight axle model that wont let the servo engage the front axle. Now if you have independant front suspension, then where the servo motor goes into the transfer case could be the problem. pull the servo motor from the case/axle and look at the engaging mechanism. You are looking for worn parts that could cause binding or broken parts. This servo motor gets its command voltage from the ecm. The signal for the ecm generates from the transmission and your in cab switch. If you can hear the motor trying to engage, then all the other factors are working up to the motor arm. The light is just a by product of the ecm trying to engage the front axle

Posted on Sep 24, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 97 blazer 4wd i repalced vaccum switch all vaccum lines and made sure actuator cable was good lights come on like im in 4wd but diff doesnt lock in and actuator not getting vaccum


The vacuum actuator should move by hand without vacuum applied. You should also be able to see it move if you have someone switch the transfer case into 4hi/lo from 2wd and then back again. There is a vacuum switch on top of the transfer case that locks vacuum once the encoder motor engages the transfer case to lock the front axle into position, and then releases the vacuum once the encoder switches back into 2wd mode allowing the front axle to decouple. If you aren't getting vacuum, first check your vacuum lines for leaks, then check for vacuum coming from the transfer case when it's in 2wd mode.

May 07, 2014 | 1997 Chevrolet Blazer

1 Answer

I have a 4wd drive 95 sonoma, it's a 4.3, 5-speed manual. Anyway the 4wd always worked great but this winter it stopped working, i don't think it's much because when i try an put it in it shifts fine (the...


this is run on vacuum on the top of the tranfer case there is vacuum lines and a transfer vacuum switch pull the vacuum line off and see if there is oil in one of the lines there will be 3 lines on it, if there is you need to change that switch, i had this problem on my 95 sonoma and it fixed the problem, also does your heater go from defrost to the floor some times. it could also just be a small hole in a vacuum hose. there is alot of them under your truck

Feb 07, 2011 | 1995 GMC Sonoma

1 Answer

NO 4X4, TRANSFER CASE ENGAGES BUT FRONT DIFFERENTIAL NOT WORKING


There is a vacuum line that goes to the transfer case.if this line is ruptured it will not engage the 4wd.Next there is a switch on the t-case that may not be working.In 4wd it supllies vacuum to the 4wd actuator that is under the battery tray.next the applied vacuum pulls the cable engaging the frontaxle.

Dec 02, 2010 | 1996 GMC Jimmy

1 Answer

I would like to upgrade from the present vaccuum 4wd actuator to electric solenoid set up for my 2001 s10 blazer. Who sells this?


There is no electric solenoid set up for the S10's, the upgrade was for the full size SUV's from the early 88 to 98 that had a thermal actuator. There is a mechanical system that is made for the S10's but it requires drilling a hole through your fire wall, running a cable into your cab and mounting the cable lock somewhere under your dash for easy access to lock in your differential.
I had the same problem and i just locked up my front differential all the time, it's been like that now for over 10 years without any issues. The transfer case is not locked up so your front axle is still not synced with your rear axle and is still free to rotate at a different speed then the rear. Just make sure you service the front differential like your suppose to and you should be fine on running with the front differential locked.
Thank you for using fixya and check to make sure that there is no cracks i your vacuum line that is keeping your front actuator from functioning or a failed vacuum switch on top of the transfer case.

May 13, 2010 | 2001 GMC Sierra Crew Cab

1 Answer

For 4x4 gmc sonoma is the 4 wheel drive light is always supposed to be on


It's only suppose to be on when the 4WD is in use and should be off when in 2WD. If the light is on, replace the 4WD switch on top of the transfer case, drivers side. You can pick up the vacuum switch at Auto Zone, Napa for around $25.00 and is common to fail. When they fail, the vacuum to the front axle hub actuator will stay engaged and the axle will always be engaged. it's a simple fix and should take you 15min to replace if you can get under the Sonoma with out jacking it up off the ground.

Disconnect the vacuum line from the switch and unscrew the switch out from the transfer case with a 3/4 inch wrench i believe. No need to worry about Teflon tape, the switch is tapered and will not leak fluid.

Good luck and thank you for using Fixya.

Feb 23, 2010 | 1992 GMC Sonoma

1 Answer

No4x4


I own a 98 short box S10 4X4 with a Vortec 4.3 and a posi rearend. I have had to check all these areas of the 4wd system. Could be one of the following or a combo of more than one __1. the fuses 2. the actuator (under the battery tray) 3. the cable from the actuator to the front differential 4. the transfer case control module (behind passenger side kick panel) 5. the vacuum switch (on top of the transfer case) 6. the push button on the dash.7. cracked or dry rotted vacuum lines in the system. Any of these not working properly will prevent you from getting your truck into 4wd. My issue ended up being the cable and the actuator. I had a vacuum issue which would not let the actuator pull the cable to engage the front axles.Replaced the vacuum lines and the vacuum switch and still no 4wd.Turned out to be the actuator and the actuator cable. Fixed that and now I have 4wd any time I want. If you hear a clicking sound at the transfer case,its fine. If you hear another click at the TCCM, its fine. If all your lights work on the dash switch, its fine. If your actuator doesn't leak any air, its fine. I replaced the vacuum switch for $15 at advanced auto parts. Turned out I didn't need it. I don't drive my truck unless there is a lot of snow so I just locked the front differential until I get a new actuator $30 and actuator cable $30. This was how I fixed my problem and I hope this info can help others,

Dec 31, 2009 | 2002 Chevrolet S-10

1 Answer

2001 s10 4wd dosen't engage


Check actuator under battery to see if it moves when you put in 4 wheel drive.This has an arm on it which pulls a cable in on front diff.sometimes the actuator boot will tear as it is like a rubber boot.

Dec 21, 2009 | 2001 Chevrolet S-10

2 Answers

My 2000 blazer won,t select 4wd hi/low or auto


there is a vacuum solonoid on the firewall in the middle with 2 vac lines and a 2 wire plug
thats ur problem
push the button and smack it with the handle of a screwdriver should work

Feb 02, 2009 | 2001 Chevrolet Blazer

1 Answer

How to change 4 wd motor(actuator) 1997 s10


Before changing the actuator check the vacuum lines at the vacuum switch on the left side of the transer case if they are wet with transmission fluid the the switch is bad and that will prevent 4wd from engaging.

Jan 14, 2009 | 1986 Chevrolet S-10 Blazer

1 Answer

1998 gmc sonoma push button 4x4 busting diaphram vacuum actuator


On top of the transfer case is a vacuum switch with 3 vacuum lines connected to it. This switch controls when vacuum is applied to the vacuum actuator. This switch can fail partly and allow fluid from the transfer case to be sucked up into the vacuum lines and anything connected to them as well. When you replaced the actuator before, did you notice any oily fluid inside of it?

Dec 10, 2008 | 1996 GMC Sonoma

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

21 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75744 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8123 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...