4x4 help!

Mudman88 · 11-06-2009, 10:11 PM

1994 S10 Blazer. 4.3 Vortec.
I got this thing back out of the shop so its time to fix some more ****.
My question- I push the 4x4 button, I hear something kinda wind up, then it clicks. I cannot turn the front driveshaft by hand, so I thought it was working, but it isnt. I stopped today in the dirt and hit the gas in 2x4, and the rear tires spun. Then i stopped, put it in park, pushed the 4x4 button, put in in drive, punched it, and the rear tires still bogged down in the dirt, thefront tires werent trying at all. SO what the heck do I have to look at now?Like I said, the driveshaft is locking up, but it doesnt seem like the 4x4 actually is.Thanks guys!

chevyguy · 11-07-2009, 03:26 PM

Disconnect the driveshaft and see which end is locking in. Either the actuator for the transfer case isnt working, Or the one on the front differential.

Mudman88 · 11-07-2009, 06:32 PM

alright thank you. I will have to do that. Im pretty sure its the front diff. actuator

chevyguy · 11-08-2009, 07:39 AM

They make a cable drive system to replace the actuator.

Mudman88 · 11-10-2009, 10:11 AM

Ok, now where the heck is the actuator!?I cant find it. All i see right now is a little thing on the pass. side of the front diff. that has 3 bolts, and a cable or something going into it.

1500cheyenne96 · 11-10-2009, 10:20 AM

That should be it looks something like this right?

Mudman88 · 11-10-2009, 11:06 AM

ummm..i dont know i havent taken it off yet. Thats is absolutely nothing like what replaces it i know that much...Is that long black piece on the inside of the diff?

Crmzendrgone · 11-10-2009, 11:24 AM

Does it look like this??

I am starting to think yours is a vacuum setup. Do you know if it is?

Mudman88 · 11-10-2009, 11:30 AM

yeah kinda..its got a 2 wire harness going into it...And 3 bolts holding it to the diff.

Mudman88 · 11-10-2009, 11:31 AM

oh and also its got a large cable going into it

11-06-2009, 10:11 PM	#1
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	4x4 help! 1994 S10 Blazer. 4.3 Vortec. I got this thing back out of the shop so its time to fix some more ****. My question- I push the 4x4 button, I hear something kinda wind up, then it clicks. I cannot turn the front driveshaft by hand, so I thought it was working, but it isnt. I stopped today in the dirt and hit the gas in 2x4, and the rear tires spun. Then i stopped, put it in park, pushed the 4x4 button, put in in drive, punched it, and the rear tires still bogged down in the dirt, thefront tires werent trying at all. SO what the heck do I have to look at now?Like I said, the driveshaft is locking up, but it doesnt seem like the 4x4 actually is.Thanks guys!

11-07-2009, 03:26 PM	#2
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,370	Disconnect the driveshaft and see which end is locking in. Either the actuator for the transfer case isnt working, Or the one on the front differential. __________________ Friends dont let friends use body lifts USMC 92-96 USCG 98 to present

11-08-2009, 07:39 AM	#4
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,370	They make a cable drive system to replace the actuator. __________________ Friends dont let friends use body lifts USMC 92-96 USCG 98 to present

11-10-2009, 10:20 AM	#6
1500cheyenne96 Senior Member Join Date: Sep 2009 Location: MIchigan Posts: 196	That should be it looks something like this right? Attached Thumbnails __________________ me+shotgun equaled fresh meat on table

11-10-2009, 11:24 AM	#8
Crmzendrgone Senior Member Join Date: Apr 2009 Location: Arizona Posts: 1,420	Does it look like this?? I am starting to think yours is a vacuum setup. Do you know if it is? __________________ ENGINES PRODUCE POWER. MOTORS RECEIVE POWER. https://lastroundbestround.com/Home_Page.html

11-07-2009, 06:32 PM	#3
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	alright thank you. I will have to do that. Im pretty sure its the front diff. actuator

11-10-2009, 10:11 AM	#5
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	Ok, now where the heck is the actuator!?I cant find it. All i see right now is a little thing on the pass. side of the front diff. that has 3 bolts, and a cable or something going into it.

11-10-2009, 11:06 AM	#7
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	ummm..i dont know i havent taken it off yet. Thats is absolutely nothing like what replaces it i know that much...Is that long black piece on the inside of the diff?

11-10-2009, 11:30 AM	#9
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	yeah kinda..its got a 2 wire harness going into it...And 3 bolts holding it to the diff.

11-10-2009, 11:31 AM	#10
Mudman88 Senior Member Join Date: Jun 2009 Posts: 121	oh and also its got a large cable going into it

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search