This video will be diagnosing an intermittent hard brake pedal on this Chevy Silverado. The hard or stiff brake pedal also applies to most GMC trucks.
What we found is the brake booster was not receiving enough vacuum and on this Chevy truck the hard brake pedal was being caused because of the vacuum pump failing.
This GMC truck has an external vacuum pump that is belt driven to supply vacuum to the brake booster. A lot of the older trucks use engine vacuum to supply vacuum to the brake booster but on this truck that is not the case.
When the engine RPMs are brought up on the Chevy truck the brake pedal actually feels much better and that's because the vacuum pump is spinning faster so it works more efficiently but at idle the brake pedal was very hard.
We found that the vacuum pump had failed and will need to be replaced to fix the hard brake pedal in this truck.
Subscribe to my youtube channel here: [ Ссылка ]
For the most common automotive fixes to the most common car and truck problems. DIY auto repair to help you save money.
Connect with me:
Website: [ Ссылка ]
Facebook: [ Ссылка ]
Grease Monkey Art Gallery [ Ссылка ] by The Flat Rate Mechanic
Instagram: [ Ссылка ]
Check out The Flat Rate Mechanics Tool Store on Amazon [ Ссылка ]
For Promotional offers, consulting, training, sponsorships or other inquiries contact me at FlatRateMechanic1@gmail.com
The Flat Rate Mechanic. 26-year ASE Master Automotive Technician and Advanced level ASE certified here to help you save money on your automotive repairs
The Flat Rate Mechanic is a participant in the Amazon Influencer Program.
Disclaimer:
Due to factors beyond the control of The Flat Rate Mechanic, it cannot guarantee against unauthorized modifications of this information or improper use of this information. The Flat Rate Mechanic assumes no liability for property damage or injury incurred as a result of any of the information contained in this automotive repair video. The Flat Rate Mechanic recommends safe practices when working on cars or trucks with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this repair video. Due to factors beyond the control of The Flat Rate Mechanic, no information contained in this automotive repair video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or the information contained.
