Douud you're a life saver I've been chasing this issue for the last 22 weeks. I also noticed and could hear the vacum line hanging on the driver side of my Jimmy Tought it was for the ABS or something like that from what I could find from diagram. Thank you so much for the video!!
After 9 videos. It was your video to show me the vacuum line under the driver fender. Thank you. Just bought a 99 Blazer yesterday and 4x4 didnt work. NOW IT DOES
They sell kits to switch the vacuum actuator to a locking cable that sell for over $100. I ordered a locking PTO cable from eBay for $12. and fabricated the end bracket from stuff I had in the garage. The other thing this gives you is the possibility to have 2wd low range as well.
I have a beautiful 02' Blazer ZR2 4x4 in 2023. That actuator under the battery is almost always the culprit. Dorman just came out with a new Heavy Duty, much thicker rubber actuator that cost $70 at O'Reilly's.. However, if you have the old actuator from O'Reilly's. They'll swap it free of charge because it has a lifetime warranty. I don't have that nipple inside the driver's side wall or fender like on this one.
Easy way to tell that is a vacuum problem is that your heater will not work correctly because your heater hose is connected to the same line and it also takes vacuum to actuate the HVAC flaps
My blazer has vacuum and will pull the vac pod in, but doesnt return in 2wd. however it doesnt even feel like it is in 4wd when the front diff cable is pulled
I’ve watched a lot of videos on this matter and came across your video by accident, went out immediately to my truck and sure as shit that vacuum line you pointed out was rotted. Replaced the line and everything works great. Thank you for the video a $3.00 fix.
That is a very nice looking ZR2 Blazer black Fender Flares red paint. And yes there are a lot of ways the four-wheel-drive could act up it is kind of a ridiculous system all the vacuum lines on these trucks rot away eventually they turn to Ash they all do it. I've looked at many of these trucks in the salvage yards.
Thx 4 the video my son has a 2001 Chevy Blazer LT 4x4 and had the same problem. The 4x4 doesn't work. There is a part that has two small 5/32" vacuum lines the top vacuum nipple is missing the vacuum line it had a rubber cap on it located in the middle top of engine (by firewall/windshield just so u get idea of where it is). Do you think you can make a video of that rubber hose line so I can see where that line goes to please zoom in on the.line so I can see where it gets attached to along the way to the actuator under the battery like you said. Thx a million if you can do this. 👏🚘👍👍
I really need someone to reply to this comment. I’ve replaced the vacuum switch on the transfer case. I’ve checked all the hoses. The actuator is fine. The only thing I know that’s for sure messed up are the buttons themselves but I can get those to work enough to press them. The actuator is always fully sucked and has the cable pulled at all times yet the front wheels aren’t engaged. And when I press the buttons, all I get is a clicking in the differential and a whole lot of nothing after that. What do I do?
The transfer case switches is on top of the transfer case with 3 vacuum lines my switch failed and I had fluid throughout my entire vacuum system had to replace everything
You guys have to look a little harder on the side of the transfer case for the transfer case vaccum switch . It's a little hard to find and see but it's there on that model for sure. It's hidden behind the front drive shaft when your looking for it, and it takes a 7/8 wrench to remove it. I say this because it will fail sooner or later.
I know the 4 button is alittle diffrent from the 3 button ..however if your at the point in this video and still having issues you want to look at the cord (rusted from moving or the front diff where the cord is going into ...vacuum switch maybe stuck (rust) This area is famous for rust and water and seals failing and a diff burning out...check your diff fluid While your there ..I have my diff out and i'm putting new seals everything else is in good shape
It was having an issue where I couldn't get it to disengage the front wheels and it was staying in 4-wheel when I wanted it to be two so it was doing what I was supposed to do rather than what it wasn't supposed to at all
Sometimes your differntial seals are ok, but u still have leak.. which is your cv joint axle shaft tip is worn out. U need to check The diameter to see if that is the case or rather u will keep having leaks even after a brand new seals are on.
We have a Sonoma GMC 4+4 someone had the actuator onthe top side of the battery I moved it out of the way to put jumper cables on and now it wontgo in anygear
i really need someone to help me,its about my chevy vortec v6 2000 ,its about the ecm ,i wish to know how the ECM works to the injector, cause i find a + in the harness same as the negatif - at the same time, so i wish someone to understand me, and give me some advices just to repair my car. i hope you will give a good answer soon , thanks for your support.....
Hey brother nice ZR2 and great info upload. FYI you have a issue somewhere with starting it. Cap and rotor are toast more than likely. Ck air filter to. Im a Zr2 guy.
Hey Zr2 guy theres no lights on the little buttons for the 4wd ,you know when its in 2wd the 2wd light will be on ,well mine isnt and i havent even tried my 4wd out yet cause i just bought my ZR2 but i was wandering if that mattered or not?thanks ,CHEVY GUY
Do as the video says ..see if the hoses are cracked or weathered replace them ....Next look at the Actuator under the battery tray If its not pumping inward when you hit the 4x4 hi or low Ether you still have a vac leak or the Actuator is bad Or the Dorman 600-500 4-Wheel Drive Switch (google) Finally The last thing is Your truck at one point had someone try to switch into 4x4 while moving and the gears are chewed and will not slide into place ...Normal thing to do if your changing the actuator change the drive switch ...If yours is flashing into 4x4 and back to 2wd Your electrics are working ...hope it helps
It's a plastic wheel on the key ignition that's spring loaded. Mine wouldn't start in cold weather because over time that spring and wheel gets gunked up. The trick I figured out (to not have to rip the column apart) is I'll turn the key until I feel the spring tension and hold it there for a second and then start it. Works every time. The aftermarket anti-theft wheel is complete junk so don't bother replacing it.
the only difference is the suspension. all the other components are the same!... the discs are different, the axles, the leaf springs, the shocks also are different.. I had no trouble finding ZR2 parts for my truck, since as I already told.. only suspension are different... in the front fonder inside it should be stamped as ZR2... or behind the distributor.. :)
rubendlove ok I got a brain buster, my Zr2 fuel Gauge stays on full all the time. I removed fuel pump inspected it seemed great shape. When I get to 'reserve' or running on empty light comes on, needle slams to empty position. The floater in the tank was operational. Any other ideas what would cause the gauge to malfunction?
Actually the funny story behind that was I was trying to recreate the fault that I was having. I would like to show what the problem is and demonstrate what it is and then show how to fix it rather than just arbitrarily say this is the fix without showing the work. The ice actually really helps for that too because I can then spin my tires and show what's going on
you need to work on your video making skills. no you did show a useful piece of information that nobody else showed in their videos. which could save a lot of time
Thanks nick and the guy , Im glad that i saw your film, I own a 2000 jimmy, paid a grand , I know i sound cheap !, but im restoring and old schoolhouse in northwest michigan , So in short i can afford a better suv bot i need the money for the school, THANK YOU FOR YOUR HELP FWD WORKS GREAT THANK TO YOU TWO !!! You guys are cool for taking the time out of your day to film this.Ken
Douud you're a life saver
I've been chasing this issue for the last 22 weeks.
I also noticed and could hear the vacum line hanging on the driver side of my Jimmy
Tought it was for the ABS or something like that from what I could find from diagram.
Thank you so much for the video!!
After 9 videos. It was your video to show me the vacuum line under the driver fender. Thank you. Just bought a 99 Blazer yesterday and 4x4 didnt work. NOW IT DOES
MAN, I scoured the internet looking for a 4x4 fix on my 05 Blazer and this fixed it!
You're amazing!
Love my ZR2 !! Oil is changed faithfully every 3000. Has 187000 and my every day driver.
My ZR2 4x4 lost 4wd yesterday. The little hose came lose. I reconnected it and it worked! Thanks!
They sell kits to switch the vacuum actuator to a locking cable that sell for over $100.
I ordered a locking PTO cable from eBay for $12. and fabricated the end bracket from stuff I had in the garage. The other thing this gives you is the possibility to have 2wd low range as well.
I have a beautiful 02' Blazer ZR2 4x4 in 2023. That actuator under the battery is almost always the culprit.
Dorman just came out with a new Heavy Duty, much thicker rubber actuator that cost $70 at O'Reilly's.. However, if you have the old actuator from O'Reilly's. They'll swap it free of charge because it has a lifetime warranty.
I don't have that nipple inside the driver's side wall or fender like on this one.
Easy way to tell that is a vacuum problem is that your heater will not work correctly because your heater hose is connected to the same line and it also takes vacuum to actuate the HVAC flaps
My blazer has vacuum and will pull the vac pod in, but doesnt return in 2wd. however it doesnt even feel like it is in 4wd when the front diff cable is pulled
I’ve watched a lot of videos on this matter and came across your video by accident, went out immediately to my truck and sure as shit that vacuum line you pointed out was rotted. Replaced the line and everything works great. Thank you for the video a $3.00 fix.
That is a very nice looking ZR2 Blazer black Fender Flares red paint. And yes there are a lot of ways the four-wheel-drive could act up it is kind of a ridiculous system all the vacuum lines on these trucks rot away eventually they turn to Ash they all do it. I've looked at many of these trucks in the salvage yards.
You are the best. Thank you so much you saving a lot of money for me. I fix it by myself.
Thanks for taking the time to try and help others w this problem. I believe this is fairly common w these blazers.
Thank you so much sir. 5 dollars in hose gave me my 4x4 back.
Great job really like how you guys were very detailed about the process.
Same exact hose fixed mine. I temp fixed a 3 inch section with heat shrink. Front wheels started pulling. 03 s10 4.3 4x4 automatic, 160k.
Thank you for taking the time to share this fix, That was cool
If you are ever in Yakima, Wa, hit me up. I would like to buy you a beer.
Nice Video👍 I picked up an 03 Zr2 for $500 Canadian yesterday. Looking forward to tinkering with it. Thanks for the insite, it was veey helpful.
I don't own a blazer but I've always wanted one so I'm watching for fun lol
I love mine 2001 extreme 19 yrs old - 124,000
Thx 4 the video my son has a 2001 Chevy Blazer LT 4x4 and had the same problem. The 4x4 doesn't work. There is a part that has two small 5/32" vacuum lines the top vacuum nipple is missing the vacuum line it had a rubber cap on it located in the middle top of engine (by firewall/windshield just so u get idea of where it is). Do you think you can make a video of that rubber hose line so I can see where that line goes to please zoom in on the.line so I can see where it gets attached to along the way to the actuator under the battery like you said. Thx a million if you can do this. 👏🚘👍👍
I really need someone to reply to this comment. I’ve replaced the vacuum switch on the transfer case. I’ve checked all the hoses. The actuator is fine. The only thing I know that’s for sure messed up are the buttons themselves but I can get those to work enough to press them. The actuator is always fully sucked and has the cable pulled at all times yet the front wheels aren’t engaged. And when I press the buttons, all I get is a clicking in the differential and a whole lot of nothing after that. What do I do?
The transfer case switches is on top of the transfer case with 3 vacuum lines my switch failed and I had fluid throughout my entire vacuum system had to replace everything
You guys have to look a little harder on the side of the transfer case for the transfer case vaccum switch . It's a little hard to find and see but it's there on that model for sure. It's hidden behind the front drive shaft when your looking for it, and it takes a 7/8 wrench to remove it. I say this because it will fail sooner or later.
theirs has the 4X4 auto button meaning it doesn't even have that transfer case switch...
And it’s a pain in the ass to get it off
1971ufcfan 2005 the Sunday gas covered valve cover gasket replace
you can tell these guys went inside and got on World of Warcraft after this.
Close at the time I was playing Warframe but my buddy is a mechanic through and through he's the one that gets me out of the house
😂😂😂😂 nice@@NyxSilence
I'm a nerd I'm going to own that shit
I know the 4 button is alittle diffrent from the 3 button ..however if your at the point in this video and still having issues you want to look at the cord (rusted from moving or the front diff where the cord is going into ...vacuum switch maybe stuck (rust) This area is famous for rust and water and seals failing and a diff burning out...check your diff fluid While your there ..I have my diff out and i'm putting new seals everything else is in good shape
It was having an issue where I couldn't get it to disengage the front wheels and it was staying in 4-wheel when I wanted it to be two so it was doing what I was supposed to do rather than what it wasn't supposed to at all
Sometimes your differntial seals are ok, but u still have leak.. which is your cv joint axle shaft tip is worn out. U need to check The diameter to see if that is the case or rather u will keep having leaks even after a brand new seals are on.
What is the part actually called, the swishy thing?
It's an Air Canister of sorts I have to look up the name of it
Good video i lol when you sprayed your self 😂☠️
Great video my guy! Life saver
wow the vacum hose on mine was off just like yours was thanks much!!
I got a 2002 no lights flashing on dash at all where do I start looking first thanks for any help .oh also all fuses okay and relays okay
my 2005 s10 blazer 2 door4x4 had a burnt vac line going to the transfer vac switch
Dude thanks for the vid, much appreciated
We have a Sonoma GMC 4+4 someone had the actuator onthe top side of the battery I moved it out of the way to put jumper cables on and now it wontgo in anygear
'97 Blazer...no lights on at all and fuses good...replaced both actuators, cable, and dash indicator switch..still no 4-wheel drive...any ideas?
Check your vacuum hoses. They are rubber toward the top of the engine.
I have an 04 LS blazer and the 4x4 just flashes
Why can't there be a particular video on a 98 s-10 blazer??
This is literally the exact same as a 98
i really need someone to help me,its about my chevy vortec v6 2000 ,its about the ecm ,i wish to know how the ECM works to the injector, cause i find a + in the harness same as the negatif - at the same time, so i wish someone to understand me, and give me some advices just to repair my car. i hope you will give a good answer soon , thanks for your support.....
Really good vid. Thanks
Hey brother nice ZR2 and great info upload. FYI you have a issue somewhere with starting it. Cap and rotor are toast more than likely. Ck air filter to. Im a Zr2 guy.
Hey Zr2 guy theres no lights on the little buttons for the 4wd ,you know when its in 2wd the 2wd light will be on ,well mine isnt and i havent even tried my 4wd out yet cause i just bought my ZR2 but i was wandering if that mattered or not?thanks ,CHEVY GUY
Nice vid.
Mine just flashes and u can hear the computer click
Do as the video says ..see if the hoses are cracked or weathered replace them ....Next look at the Actuator under the battery tray If its not pumping inward when you hit the 4x4 hi or low Ether you still have a vac leak or the Actuator is bad Or the Dorman 600-500 4-Wheel Drive Switch (google) Finally The last thing is Your truck at one point had someone try to switch into 4x4 while moving and the gears are chewed and will not slide into place ...Normal thing to do if your changing the actuator change the drive switch ...If yours is flashing into 4x4 and back to 2wd Your electrics are working ...hope it helps
Thanks brotha
My blazer does the same thing on startup, and takes a little while to turn over. Do you know what the cause of that could possibly be?
It's a plastic wheel on the key ignition that's spring loaded. Mine wouldn't start in cold weather because over time that spring and wheel gets gunked up. The trick I figured out (to not have to rip the column apart) is I'll turn the key until I feel the spring tension and hold it there for a second and then start it. Works every time. The aftermarket anti-theft wheel is complete junk so don't bother replacing it.
It's a failing spider injector located under the intake. Very common problem.
Or it’s a weak fuel pump starting to go out or a plugged fuel filter.
Thanks!
it's not a extreme package... it's a ZR2
rubendlove they're the same thing
ZR2.. has a higher notched frame Thus why when you order parts there is ZR2 and NON ZR2 or Base model Extreme is loaded base model
freakyflow neat thx for Clarification. I didn't know ty
the only difference is the suspension. all the other components are the same!... the discs are different, the axles, the leaf springs, the shocks also are different.. I had no trouble finding ZR2 parts for my truck, since as I already told.. only suspension are different...
in the front fonder inside it should be stamped as ZR2... or behind the distributor.. :)
rubendlove ok I got a brain buster, my Zr2 fuel Gauge stays on full all the time. I removed fuel pump inspected it seemed great shape. When I get to 'reserve' or running on empty light comes on, needle slams to empty position. The floater in the tank was operational. Any other ideas what would cause the gauge to malfunction?
Where does that vacuum line go?
So- this video is just "check your vacuum lines" argh... waste of time
t hanks fixed mine
The lens glare at 4:36 is positioned amazingly.
This video more like a comedy!!
I'm a computer tech not a mechanic lol. Just something I discovered how to fix that I found was a common question on the internet without an answer.
Reverse don’t work wat do I do
Actually the funny story behind that was I was trying to recreate the fault that I was having. I would like to show what the problem is and demonstrate what it is and then show how to fix it rather than just arbitrarily say this is the fix without showing the work. The ice actually really helps for that too because I can then spin my tires and show what's going on
Perfecto pero está en inglés le entiendo un poco
you need to work on your video making skills. no you did show a useful piece of information that nobody else showed in their videos. which could save a lot of time
I should edit. But that was a while ago. I just kind of tool around.
@@NyxSilence when I got two working on the vehicle that was what thanks
This is the one video that actually solved my issue with my 4×4 so I'm not complaining one bit. Thanks dude👍
8:40
bro you like waluigi
Thanks nick and the guy , Im glad that i saw your film, I own a 2000 jimmy, paid a grand , I know i sound cheap !, but im restoring and old schoolhouse in northwest michigan , So in short i can afford a better suv bot i need the money for the school, THANK YOU FOR YOUR HELP FWD WORKS GREAT THANK TO YOU TWO !!! You guys are cool for taking the time out of your day to film this.Ken
Buy a 4Runner
Jon Smith so I thought about it. But ended up selling the blazer for a Lancer.