Brake pedal stiff after Serpentine Belt replacement

I just changed my serpentine belt. The car was up on a jack and stands for 2 days. Parking brake engaged. Went for a test drive and the brake pedal is very stiff. Stopping power weak. Thoughts appreciated.

1 Fault Found:
16683 - Boost Pressure Regulation
P0299 - 000 - Control Range Not Reached
Freeze Frame:
RPM: 2352 /min
Torque: 190.0 Nm
Speed: 47.0 km/h
Load: 68.2 %
Voltage: 14.36 V
Bin. Bits: 00101100
Absolute Pres.: 2029.8 mbar
Absolute Pres.: 1132.2 mbar

Vacuum leak

Sent from my Pixel XL using Tapatalk

Thanks. I'm going to work on it Sunday. I'll be updating.

check the big hard plastic vacuum hose coming off the vacuum pump to the brake booster. Look at it closely as the crack can be hard to see sometimes.

You probably knocked a hose loose when replacing the belt. Look for that.

Thanks, everyone. It was 2 cracks in the hose between the check valve and the brake booster. I rigged temporarily using hose clamps to squeeze the cracks closed. Any recommendations where I can buy a BOOSTER VACUUM HOSE for less than $54? Thanks again.
StevenT

I bought mine a couple years ago at IDParts, for about $34 iirc. Just looked - for an ALH engine it's now $39. For a BEW they list at $44.95, $60 if automatic

https://www.idparts.com/advanced_se...+hose&osCsid=2d5a880f29c2db5a866264a54cb808b6

Thanks for looking ToxicDoc. Mine is BEW Automatic

You could try using self-fusing silicone tape. Wipe off the hose clean then wrap tightly around it. It's worked for me for more than a year so far. I got the tape from the 99 cent store.

alex_tdi said:

You could try using self-fusing silicone tape. Wipe off the hose clean then wrap tightly around it. It's worked for me for more than a year so far. I got the tape from the 99 cent store.

Click to expand...

Or scotchfill from the electrical section

Sent from my Pixel XL using Tapatalk

If the ends are good you could always cut them off and clamp them to section of pipe. I've used coated brake line as vacuum line substitute in the past.

I ordered Silicone Rubber Self Fusing tape from Amazon. It's split on both ends where the connections are made. I'll try $5 before I spend $70 with shipping for a new vacuum hose. I'll take pics of the repair and post.

Thanks, guys for recommending the infusing tape. I ordered from Amazon for $4. It fixed the leaks and has been working fine for 3 weeks.