Blazer S10 Jimmy 4WD Vacuum Troubleshoot - 4 Push-Button

[@rogerthornburg8794]

I looked for days to find out where that dry rotted vacuum line went... Thanks for showing me!!!

[@moo.johnference869]

The vacuum canister ( inside driver fender ) is the holy grail with this system .

[@mrbogus2042]

My vacuum line right near that had broken half. Worked right away after fixing the break. Thank you for info.

[@josephmeredith2204]

I .......Love you man.....do you....have any......(sobbing)...idea.....(outright crying)....,thank you....

[@lukebausum3135]

you did a good job keeping your 4.3l v6 clean, or at least better than my 2002 Chevy Blazer

[@fnscomedycrew]

Luke Bausum hah thanks. It is pretty clean actually.

[@jermainescott3825]

Those r great trucks. I hve one. 230k miles

[@klink11]

Thanks , found my problem at the PCV valve , line was rotten. Cut 1" off , put it back on . Bang I had 4 Wheel Drive & my heater work like new. My 2000 Blazer is ready for winter , Again.

[@Keith-jb6je]

Thanks I had the exact same problem on a 2000 blazer. took me to long to fine it. I have 4 wheel dive again. i used 5/32 and 7/32

[@TheMrdocmanny]

thanks bro my 4x4 and vents are not working. come to find out all of the hoses you showed need to be replaced on my truck

[@Chevyslife-vx1em]

Helped so much thx for showing were the hoses ran to been looking for this same problem

[@rheesatm1568]

Thanks this actually fixed it

[@Pr0digy47]

I had a guy at good year tell me my 4x4 wasn t run by vacuum lines.....i was like I'm leaving

[@802Garage]

The Yukon and many later years use an electronic solenoid on the diff as well as the motorized transfer case actuator like these models. No vacuum actuator.

[@davidkirschbaum4300]

Thank you so much I had the exact same problem on a 01 Jimmy I kinda laughed like you did put a cap on hose 4x4 works fine. easy fix wish I seen your video first wasted half a day on other stuff

[@fnscomedycrew]

David Kirschbaum sure thing. Another guy commented and mentioned the vacuum canister. There is a nipple that connects to the fender where the original line used to go. If reconnection doesn't work a cap will get you by just fine ;)

[@luisricardotorres6600]

I got a question I have a bravada with awd and the light Service awd its on, can someone help me please?

[@THELAFFCHANNEL]

Thank you been looking for this switch mine doesn't have lol

[@99callsign]

how did your hvac control on the dash work with no vacuum going to it?? Blend doors need vacuum!!!

[@ouwie]

Can anyone tell me, is there a diagram or a video would be better of all the vacuum hoses so I can replace all of the hoses? I am having a vacuum leak somewhere.

[@johngreer343]

I need to replace all that I have no hoses or fittings kinda lost on what to buy and where it goes any help?

[@doobisbone]

On my 03 Sonoma ZR2, those 2 vacuum lines that run to & fro the T fitting, collapsed. I replaced one and capped off the other that runs to the canister, but ever since then, it has idled rough, almost like a misfire and it even kept stalling, yesterday. Could that be a result of the capped line??

[@fnscomedycrew]

It's William I highly doubt that. If you haven't replaced the dist cap and rotor button I would do that. Check your plugs first. Could be a few things. Maybe you have other bad lines and a bad MAF also?

[@doobisbone]

Flippusmn - I had installed a distributor just before this happened. It took a few to get it set right for the timing but after that, it ran strong and then I replaced that vacuum line and capped that one and it began to run like sh!t. MAF?

[@fnscomedycrew]

It's William Mass air flow. I don't think capping that would do what you described ever. Complete loss of vacuum might but mine ran with disconnected lines. Your spider injector might be messed up but at 03 I doubt it. Another possibility could be your lower, maybe upper, intake manifold gaskets. Have you replaced those with felpro gaskets to prevent dexcool wear?

[@Chevyslife-vx1em]

Having the same problem the idel dies down when i cap the hose off

[@robertcromwell9736]

@@Chevyslife-vx1em Idle should die donw if you cap off a vacuum leak but the IAC should bump the idle back up.

[@Cobyk26]

great video my man! noy alot of reference on here to that specific solenoid. however, on my 04 blazer, one of the two vacuum lines on that solenoid you picked up was cut right at the solenoid. if that makes sense. basically i have no idea where the other line goes to or how to find it. could anyone tell me where they both go to? i kno one goes to the right and links to the other peice that falls out of the wheel well but the other goes down where? thanks in advance.

[@shakenbake2]

Hvac

[@josephmeredith2204]

Video of the year goes to.....

[@raymondsimpson7433]

Are you sure that has something to do with 4x4 mine is 2 wheel drive and has the same vacuum lines and mine are dry rotted but I don't have 4 wheel drive.

[@fnscomedycrew]

Hvac system also

[@esauce307]

Someone PLEASE help me!! My 99 Blazer has all of the 4x4 lights on and when I press a button it wont do a single thing... not too sure what the deal is someone please help!!

[@gtrhero100]

Probably a little late for this, but there's a control module behind the passenger side kick panel that may be your problem.

[@moo.johnference869]

I believe you have a vacuum leak . This little leak will make the idle real annoying and will eventually cause OC failure and than a hole lot of shit starts to happen .

[@purpledoge4466]

I got the p0300 and i already replace everything,my 4x4 works do mine is a 1998 lt

[@lawrencepalmer6059]

hey this helped me solve my problem my 4x4 now works thatnks ive watched countless videos and this one was the helpful one.

[@fnscomedycrew]

Lawrence Palmer Good to hear. Might be good to read the description for extra notes and some comments. Getting a new piece of line is the best way to fix it unless there's a problem with the canister.

[@raulmarin8704]

You save a ton of money buddy

[@x-man5056]

Plug it back in. If it comes off again change the vacuum line and plug it back in again. Your dash air direction control will lose it's mind with that unplugged.

[@johngreer343]

Any advice on installing all the lines and fittings I have none or any idea what to buy or where to start

[@angelobovara317]

uh uhm and uh um.