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ralf_schmid67

Tahoe brake booster pressure sensor error

Hey, I've got a 2001 Chevy Tahoe with a gasoline engine and almost 250k km on the clock. Recently, I've been getting an error message in the speedometer related to the brakes. The braking performance feels weaker than usual. Hooked it up to a scanner and it's showing an error related to the brake booster pressure sensor. I'm suspecting it might be related to a brake bleed I did recently. Anyone seen this before?

Summary of the thread

A 2001 Chevy Tahoe owner experienced a brake booster pressure sensor error, leading to weaker braking performance. The issue was suspected to be linked to a recent brake bleed. A similar case suggested that a faulty sensor could affect the ABS and braking. The solution involved re-bleeding the brakes to remove air from the system and replacing the sensor, restoring proper braking function.

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4 comment(s)

williamkaiser4

I had something similar happen with my Tahoe. A bad pressure sensor can definitely mess with your ABS system and overall braking. Was the error message consistent, or did it come and go?

ralf_schmid67 (community.author)

The error message is pretty consistent. It's there almost every time I start the truck. Did your issue also affect the actual braking performance, or was it just the error message?

williamkaiser4

Yeah, my braking was definitely affected. It felt like I had to press the pedal way harder than usual. I'd get it checked out by a professional. Could be the sensor itself, but if you think it's related to the bleed, they can check for air in the lines. Safety first!

ralf_schmid67 (community.author)

Thanks for the advice! Turns out, I messed up the bleeding process and introduced air into the system like you said. Had a local shop re-bleed the brakes and replace the sensor. Cost me 90€ all-in, and the Tahoe is stopping like new again!

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CHEVROLET

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TAHOE