2007 Camry v6 hissing noise when brakes pressed and brake go to the floor

Asked by RayC0469 Nov 08, 2020 at 10:06 PM about the 2007 Toyota Camry SE V6

Question type: Maintenance & Repair

So I have a 2007 Camry V6 automatic with close to 200000 miles on it.  
Recently the check engine light came on along with VSC lights.  I checked
the ODB2 codes and got P0171 and P0174.  Now, I have noticed a hissing
noise when I press the brake pedal and, with continued pressure, the brakes
go all the way to the floor.  You almost have to pump the brakes to get the
vehicle to stop normally.  I checked and found not leaks in the brake lines or
around the reservoir.  The brake fluid level has stayed at max.  What could
be causing this issue?  The only work that I have done recently is change the
alternator, but I doubt that is the cause of this problem.  Any suggestions or
guidance would be greatly appreciated.

2 Answers


Might check the vacuum hoses for leaks starting at the brake booster. One will run to the intake manifold, which could be why you're running a lean gas mixture.

1 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

2007 Toyota Camry

Review another car

CarGurus Experts

  • #1
  • #2
    Tony Ciccotelli
  • #3
    Tony Ciccotelli
View All

Know more, shop wisely


Related Models For Sale

Used Honda Accord
1,611 Great Deals out of 31,095 listings starting at $1,200
Used Toyota Corolla
1,712 Great Deals out of 26,776 listings starting at $1,295
Used Honda Civic
1,406 Great Deals out of 30,473 listings starting at $799
Used Toyota RAV4
2,028 Great Deals out of 36,000 listings starting at $1,900
Used Toyota Camry Hybrid
215 Great Deals out of 6,052 listings starting at $2,989
Used Toyota Avalon
187 Great Deals out of 2,356 listings starting at $1,468
Used Toyota Tacoma
1,949 Great Deals out of 36,701 listings starting at $4,900
Used Nissan Altima
1,381 Great Deals out of 35,424 listings starting at $1,819
Used Toyota Highlander
1,472 Great Deals out of 21,399 listings starting at $1,000
Used Toyota 4Runner
1,456 Great Deals out of 25,533 listings starting at $2,500
Used Lexus IS
328 Great Deals out of 5,869 listings starting at $2,895
Used Lexus ES
541 Great Deals out of 8,660 listings starting at $1,500
Used Dodge Charger
934 Great Deals out of 40,419 listings starting at $1,950
Used Honda CR-V
2,177 Great Deals out of 37,886 listings starting at $1,995
Used Nissan Maxima
297 Great Deals out of 4,821 listings starting at $1,600

Used Cars for Sale

2024 Toyota Camry For Sale
17 Great Deals out of 15,670 listings starting at $24,368
2023 Toyota Camry For Sale
314 Great Deals out of 3,952 listings starting at $17,495
2022 Toyota Camry For Sale
315 Great Deals out of 2,953 listings starting at $17,000
2021 Toyota Camry For Sale
296 Great Deals out of 3,904 listings starting at $15,499
2020 Toyota Camry For Sale
233 Great Deals out of 2,475 listings starting at $11,980

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.