Hydro boost Replacement (Express / Savana) 2003+ 

So glad it helped! Not a bad procedure at all other than trying to remove that clip.

Other than that brake pedal horseshoe clip it’s pretty simple! I’m sure you’ll have it knocked out in an afternoon 👍👍

Glad it helped!

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!)

Glad it helps!

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.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-R-XCPjbkR6w.htmlsi=gz2tw8emCyChm4Od

I found this helpful

Thank you Duane. Always a pleasure! Excited to have this leak fixed!

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!

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!

Seems like a really common problem unfortunately! Luckily a pretty easy replacement job. Good luck with the fix!!

Nice! Wasn't sure how similar the 1996-2002 models were. Glad to hear it was still helpful!

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!

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

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 :/

No there is not a gasket between them.

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?

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!

I should have mentioned this! Thank you.

@@VanwithTim you could have linked 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 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?

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!