I was doing the project myself and I got stuck on that break light clip I couldn't tell what was going on your detail camera work was perfect thank you so much.
Excellent video! I just had to comment and EXPRESS (LOL) how I felt about your video. Good job Tim! Now it is my turn to do a replacement. I also must comment on how clean your van is. And with 220,000 miles! Nice!
Haha thanks for checking it out Jermi! Unfortunately I think my steering gear box is leaking now... Just can't win with these high mileage vehicles! (At least the engines seem to be bulletproof!)
You did a great job showing all the issues with removal and installation. Your video was so detailed & THANK YOU for not playing some lame music in the back ground. I could actually hear you as you explained step by step. You should be nominated for a Oscar for short video that makes sense. - 04gmc
I just noticed my power steering leaking on mine as well. What did you need to do to yours? Did you have to replace this part? Seems like it’s more for the brakes than the steering, so I am kinda confused, lol…
Glad it helped and hope the job goes well! I also ended up having a leak in my steering gear box. That was a little less fun to replace. The joys of high mileage vans I suppose!
Good job, I don't have a chevy van, my friend does so I shared it with him, great explanation and commentary, clear videography. Very helpful. Overall great video, good luck on the future groth of your channel.
Thank you I have a 1976 Cadillac Eldorado first time with a hydroboost system believe it or not it has that and thank you for the well-documented video capture of everything to be done I can't wait to do this for my vehicle cuz I'm having similar problems but I can't understand whether or not I have a leak in my power steering lines are not so I may not have to do this but I appreciate your video either way thank you!
@@GhostHammerX Hi Hammer thanks for your care about my vehicle! The car is actually been in the repair shop for over a month and the guys dragging his ass trying to fix it he was saying the hydroboost is likely okay but it's probably just the power steering unit so I can give you an update if you give me your email or something but yeah waiting on the repair still!
Funny I’m about to replace the HydroBoost on my express. I noticed a small leak, also noticed someone replaced the mast are cylinder with a cheap China one maybe for a vacuum assist setup not for the hydroboost. The brakes work but feel spongy. I replaced a leaking rear whee cylinder so that actually helped. I got a used oem master and HydroBoost from a junk yard, I figured I could rebuild them if need be. Thanks for the awesome videos!
I put it off for such a long time thinking it would be a really tough job (which wasn't at all the case!) So glad to have it taken care of! Good luck with yours!
Just did it myself and it’s not too bad, however, the pedal rod was too small on the new one and it’s causing my brake lights to stay on. Have to do the job all over again.
excellent video!! I just got an estimate from the mechanic to have it replace $505.04 Dollars....guess what thanks to your video I will do it myself and save some dinero.... LOL
Thank you for the well explained video. When I bought my hydroboost replacement it came with two small o-rings. I have no clue where they go. Do you? Thank you.
Hi, the small o-rings go on the ends of the two power steering lines that thread into the unit. Your old ones may be fine but it’s recommended to replace them any time the lines are removed 👍
if I do this no need purgue any line ? i see some videos they say purgue a line bc can take air one of those lines that is true ?please help! gmc denali 2004
No seal there. Determine if it’s brake fluid or power steering fluid and that will tell you whether it’s the internal seal of the master cylinder or a defective Hydroboost. Sorry for your luck :/
Good question. Mine was leaking power steering fluid in the driveway, and I didn't want to risk losing my power brakes on such a big vehicle. You can usually determine a leaking hydroboost by wiping your finger underneath where the master cylinder and the hydroboost bolt together. If there's power steering fluid present, your hydroboost is leaking. If there's brake fluid present, your master cylinder is leaking. Thanks for the comment! -Tim
Thanks Mario. Yes, if it's leaking power steering from between the master cylinder and hydroboost unit you'll need to replace the hydroboost just like me
@@VanwithTimQuestion: I can’t tell exactly where the leak is coming from, since everything is covered in oil, but it seems like it’s in that general area…also, my brakes feel fine and there is no loss of brake fluid…but my power steering fluid is definitely leaking. Why would I need to replace the whole unit, instead of just a gasket or something?
Hey Carl, The power steering should be flushed, but no need to touch the brake fluid (unless you're removing and replacing your master cylinder as well). -Tim
Sorry for the late reply - are you talking about the spring and clip assembly I remove @9:13 ? If so, no need to worry about reusing this piece. It's not the cause of the leak. It's been 17 months and still leak free on my unit thankfully!
Not sure on the 1996-2002 models, but here is the factory service procedure for your 1999 Savana if it helps! -Tim Hydraulic Brake Booster Replacement REMOVAL PROCEDURE NOTICE: Hydraulic brake systems use two distinct and incompatible fluids. Power steering fluid is used in the hydraulic brake booster system. Brake fluid is used in the master cylinder and brake pipes. Use extreme care when selecting brake system fluids, or seal damage can result. 1. Drain the power steering fluid. 2. Remove the brake master cylinder. 3. Disconnect the hose to the power steering fluid reservoir at the hydraulic power brake booster. 4. Disconnect the inlet hose and the outlet hose at the power brake booster. 5. Remove the power brake booster pushrod. 6. Remove the retaining nuts from the power brake booster. 7. Remove the power brake booster from the vehicle. 8. Remove the power brake booster gasket. INSTALLATION PROCEDURE 1. Install the power brake booster gasket. 2. Install the power brake booster to the vehicle. NOTICE: Refer to Fastener Notice in Service Precautions. 3. Install the retaining nuts to the power brake booster. ^ Tighten the retaining nuts to 36 Nm (27 ft. lbs.). 4. Install the power brake booster pushrod. 5. Connect the inlet hose to the power brake booster. ^ Tighten the inlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.). 6. Connect the outlet hose to the power brake booster. ^ Tighten the outlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.). 7. Install the power steering fluid reservoir hose to the power brake booster. ^ Tighten the power steering fluid reservoir hose fitting to the power brake booster to 36 Nm (27 ft. lbs.). 8. Install the brake master cylinder to the vehicle. 9. Bleed the power steering system.
Noticed a power steering fluid leak. Although this was leaking, my steering gear box was ALSO leaking! All squared away now. Stops and steers like new!
"If that is, this job is much easier than expected!" Amen thanks for the video!
Awesome! MIne just went out on mine. I guess I've got my weekend planned now. lol
Thanks for the video I save some money with your help, my mechanic are a bit mad. Lol.
Great video, especially in tight space while removing the little clip. I feel very confident, I can replace my booster, after watching your video.
I was doing the project myself and I got stuck on that break light clip I couldn't tell what was going on your detail camera work was perfect thank you so much.
So glad it helped! Not a bad procedure at all other than trying to remove that clip.
Would a bad hydro boost cause you not having a hard brake pedal?
I just found this two years after you posted it, and I'm about to step out the door and fix my van right now. Thanks for making such a detailed video.
Thank you! yuur video is the best GM hydroboost replacement I have ever seem!
Thx for the video, now is my turn to replace the brake booster… 💪🏻
Other than that brake pedal horseshoe clip it’s pretty simple! I’m sure you’ll have it knocked out in an afternoon 👍👍
Got a subscribe for making this bud, couldn't remember how that friggin clip was suppose to go back in for the brake light sensor thing!!
Glad it helped!
I am doing my brakes this weekend. Thanks for refresher.
Excellent video! I just had to comment and EXPRESS (LOL) how I felt about your video. Good job Tim! Now it is my turn to do a replacement. I also must comment on how clean your van is. And with 220,000 miles! Nice!
Haha thanks for checking it out Jermi!
Unfortunately I think my steering gear box is leaking now... Just can't win with these high mileage vehicles! (At least the engines seem to be bulletproof!)
You did a great job showing all the issues with removal and installation. Your video was so detailed & THANK YOU for not playing some lame music in the back ground. I could actually hear you as you explained step by step. You should be nominated for a Oscar for short video that makes sense. - 04gmc
Just noticed my power steering fluid leaking. I like to DIY when I can and this video helps a lot. Thank You!
I just noticed my power steering leaking on mine as well. What did you need to do to yours? Did you have to replace this part? Seems like it’s more for the brakes than the steering, so I am kinda confused, lol…
@@GhostHammerXTopped off fluid and rechecking periodically. Pump provides pressure for both steering and brake booster.
th-cam.com/video/R-XCPjbkR6w/w-d-xo.htmlsi=gz2tw8emCyChm4Od
I found this helpful
THANK YOU ITS WELL EXPLAINED
Glad it helps!
Thank you for the video, it really helped as I thought it would be a monster of a job to do now I’m prepared for the task.
Glad it helped and hope the job goes well!
I also ended up having a leak in my steering gear box. That was a little less fun to replace.
The joys of high mileage vans I suppose!
Good job, I don't have a chevy van, my friend does so I shared it with him, great explanation and commentary, clear videography. Very helpful.
Overall great video, good luck on the future groth of your channel.
Thank you Duane. Always a pleasure! Excited to have this leak fixed!
Thank you! Vert useful technical vid.👊🙏✌️
Thank you I have a 1976 Cadillac Eldorado first time with a hydroboost system believe it or not it has that and thank you for the well-documented video capture of everything to be done I can't wait to do this for my vehicle cuz I'm having similar problems but I can't understand whether or not I have a leak in my power steering lines are not so I may not have to do this but I appreciate your video either way thank you!
Was it your power steering?
@@GhostHammerX Hi Hammer thanks for your care about my vehicle! The car is actually been in the repair shop for over a month and the guys dragging his ass trying to fix it he was saying the hydroboost is likely okay but it's probably just the power steering unit so I can give you an update if you give me your email or something but yeah waiting on the repair still!
Funny I’m about to replace the HydroBoost on my express. I noticed a small leak, also noticed someone replaced the mast are cylinder with a cheap China one maybe for a vacuum assist setup not for the hydroboost. The brakes work but feel spongy. I replaced a leaking rear whee cylinder so that actually helped. I got a used oem master and HydroBoost from a junk yard, I figured I could rebuild them if need be. Thanks for the awesome videos!
Seems like a really common problem unfortunately! Luckily a pretty easy replacement job. Good luck with the fix!!
Thanks for taking time to make this video. Just saved me some cheddar!!!
Thank you so much for sharing this video I'm having this issue with my van and now I think I will fix it myself Thanks
I put it off for such a long time thinking it would be a really tough job (which wasn't at all the case!) So glad to have it taken care of! Good luck with yours!
Great job explaining it help me with my project 09 express 3500 .
Thank you
that's great thanks brother!
Yo! Great camera dude. Thanks a lot this really helped when doing mine in a gmcsavanna 01
Nice! Wasn't sure how similar the 1996-2002 models were. Glad to hear it was still helpful!
Thanks for this. I’m going to attempt doing mine today
Great video thanks
Extremely thanks for the video I’m having the same problem with my 2008 express. Thanks again.
Thank you sir, very well explained.
Thank you!
Thanks for the video 🙏🙏
Awesome job. Helps me a lot
Thanks for the video man! This helped a ton.
great job thank you
Liked and subscribed!!! Thank you bro!!
Buen trabajo amigo thank you
Thank you buddy
Thank you
Just did it myself and it’s not too bad, however, the pedal rod was too small on the new one and it’s causing my brake lights to stay on. Have to do the job all over again.
excellent video!! I just got an estimate from the mechanic to have it replace $505.04 Dollars....guess what thanks to your video I will do it myself and save some dinero.... LOL
purgaste alguna linea al ponerlo o solo instalaste el nuevo y ya ?
Can you show where the brake master cylinder plug comes from
Thank you for the well explained video. When I bought my hydroboost replacement it came with two small o-rings. I have no clue where they go. Do you?
Thank you.
Hi, the small o-rings go on the ends of the two power steering lines that thread into the unit.
Your old ones may be fine but it’s recommended to replace them any time the lines are removed 👍
@@VanwithTim , thank you very much!
if I do this no need purgue any line ? i see some videos they say purgue a line bc can take air one of those lines that is true ?please help! gmc denali 2004
Hey man was there a seal in between the master cylinder and booster? I have a leak after replacing the booster in between the two
No seal there. Determine if it’s brake fluid or power steering fluid and that will tell you whether it’s the internal seal of the master cylinder or a defective Hydroboost. Sorry for your luck :/
Why did you decide to replace it. Great video by the way.
Good question.
Mine was leaking power steering fluid in the driveway, and I didn't want to risk losing my power brakes on such a big vehicle.
You can usually determine a leaking hydroboost by wiping your finger underneath where the master cylinder and the hydroboost bolt together.
If there's power steering fluid present, your hydroboost is leaking.
If there's brake fluid present, your master cylinder is leaking.
Thanks for the comment!
-Tim
Thanks. Now I can do it for someone else😅
hello is there a gasket between the master cylinder and the hydro boost were they meet ?
No there is not a gasket between them.
Go Express...
Shop wanted to charge me $1100 for this... They should be closed down for highway robbery!
You’re the man
nice video. my power steering leak from that is that the problem?
Thanks Mario. Yes, if it's leaking power steering from between the master cylinder and hydroboost unit you'll need to replace the hydroboost just like me
@@VanwithTimQuestion: I can’t tell exactly where the leak is coming from, since everything is covered in oil, but it seems like it’s in that general area…also, my brakes feel fine and there is no loss of brake fluid…but my power steering fluid is definitely leaking. Why would I need to replace the whole unit, instead of just a gasket or something?
Did you replace the power steering fluid and the brake fluid at the same time?
Hey Carl,
The power steering should be flushed, but no need to touch the brake fluid (unless you're removing and replacing your master cylinder as well).
-Tim
Would you put your old hrydroboost pressure coil into the new one if it leaks ..or is it than not the problem that it leaks
Sorry for the late reply - are you talking about the spring and clip assembly I remove @9:13 ? If so, no need to worry about reusing this piece. It's not the cause of the leak.
It's been 17 months and still leak free on my unit thankfully!
@@VanwithTimwhat then IS the cause of the leak?
There is a bleed procedure you want to look up.
I should have mentioned this! Thank you.
@@VanwithTim you could have linked it
do you think that a 99 savanna would be about the same ?
Not sure on the 1996-2002 models, but here is the factory service procedure for your 1999 Savana if it helps!
-Tim
Hydraulic Brake Booster Replacement
REMOVAL PROCEDURE
NOTICE: Hydraulic brake systems use two distinct and incompatible fluids. Power steering fluid is used in the hydraulic brake booster system.
Brake fluid is used in the master cylinder and brake pipes. Use extreme care when selecting brake system fluids, or seal damage can result.
1. Drain the power steering fluid.
2. Remove the brake master cylinder.
3. Disconnect the hose to the power steering fluid reservoir at the hydraulic power brake booster.
4. Disconnect the inlet hose and the outlet hose at the power brake booster.
5. Remove the power brake booster pushrod.
6. Remove the retaining nuts from the power brake booster.
7. Remove the power brake booster from the vehicle.
8. Remove the power brake booster gasket.
INSTALLATION PROCEDURE
1. Install the power brake booster gasket.
2. Install the power brake booster to the vehicle.
NOTICE: Refer to Fastener Notice in Service Precautions.
3. Install the retaining nuts to the power brake booster.
^ Tighten the retaining nuts to 36 Nm (27 ft. lbs.).
4. Install the power brake booster pushrod.
5. Connect the inlet hose to the power brake booster.
^ Tighten the inlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
6. Connect the outlet hose to the power brake booster.
^ Tighten the outlet hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
7. Install the power steering fluid reservoir hose to the power brake booster.
^ Tighten the power steering fluid reservoir hose fitting to the power brake booster to 36 Nm (27 ft. lbs.).
8. Install the brake master cylinder to the vehicle.
9. Bleed the power steering system.
@@VanwithTim thank you!
What was the issue that caused you to replace it?
Noticed a power steering fluid leak. Although this was leaking, my steering gear box was ALSO leaking!
All squared away now. Stops and steers like new!
Good video!
look up chevy express 2500