I noticed a hissing noise coming from under the dash

Asked by Aug 28, 2014 at 07:23 PM about the 1999 Toyota Camry Solara 2 Dr SLE V6 Coupe

Question type: Maintenance & Repair

I noticed a hissing noise coming from under the dash while driving.  I turned off air and
radio and noticed it was only when I pressed the brake pedal (didn't matter if I was
stopped or moving).  When the car is stopped and its *Really* quiet I can hear it when I
am not pressing my brakes.  I know this sounds like a booster issue but here is the catch:  
My brakes are perfectly normal and have been for a week since this has happened.  The
mechanic I spoke with does not believe its the booster, and I hope it isn't because I don't
have that money.  The car is a 1999 Toyota Solara V6 SLE

9 Answers

33,855

Hmmmm. How dose the rubber hose from the block to the brake booster look?

1 of 1 people found this helpful.

BoholMark, It's as old as the car is. I tried running my hands up and down the hose to detect leaks but I couldn't find anything (granted there is a much more methodical way to do this). I suspect it could also be a the check valve. When I am in my car its easy to hear, left side under dash. But when I get under the hood, it is hard to pin-point the location of the noise with all the other moving parts creating noise.

33,855

If you leave it overnight is the brake peddle hard in the morning?

Mark, Yeah. Brake pedal gets pretty much hard when the car cuts off. Once car turns on, it operates normally and drops a couple inches.

33,855

Did the mechanic physically look at the booster or just give an opinion?

He gave an opinion. He said he'd worked on Toyota for 20 years and has only ever had to replace a few boosters and said he very highly doubted it given my symptoms.

33,855

All the symptoms are there. Hissing noise. The brake peddle gets hard. There's a vacuum leak somewhere.

2 of 2 people found this helpful.
Best Answer

I completely agree but I've read through so many posts that talk about bad boosters and I just struggle to think that's my issue... I have no trouble braking, no trouble idling, etc. It sounds like someone is going to have to take a look to diagnose... Thanks for your help!

I have the exact same problem on the same model/year car. Although the brakes seem to work normally, on a panic stop you can tell they are not providing enough braking power. At 40MPH and standing on the brake with both feet, ABS never engages and stopping distance too long. I took this to Toyota, and they did a full diagnostic on the brake system, including vacuum check of the brake booster. They found no problems. Funny thing is, the problem disappeared for a few weeks. No noise, and panic braking performance was restored, with ABS functioning as expected. But now it has returned. I am at a loss.

Your Answer

Add photo

Related Questions

Camry Solara

Looking for a Used Camry Solara in your area?

CarGurus has 1,442 nationwide Camry Solara listings starting at $1,695.

ZIP:

Search Toyota Camry Solara Questions

Toyota Camry Solara Experts

#1 Tom Demyan
Tom Demyan
Reputation 570
#2 Mike Bonnell
Mike Bonnell
Reputation 470
#3 tenspeed
tenspeed
Reputation 290
View All

Related Models For Sale

Used Toyota Camry
1,002 Great Deals out of 90,919 listings starting at $650
Used Toyota Corolla
785 Great Deals out of 73,830 listings starting at $1,995
Used Honda Accord
812 Great Deals out of 84,287 listings starting at $1,050
Used Toyota Avalon
191 Great Deals out of 13,525 listings starting at $2,211
Used Ford Mustang
470 Great Deals out of 45,735 listings starting at $1,999
Used Honda Accord Coupe
178 Great Deals out of 10,520 listings starting at $1,995
Used Honda Civic
657 Great Deals out of 88,604 listings starting at $995
Used BMW 3 Series
972 Great Deals out of 31,729 listings starting at $1,000
Used Chrysler Sebring
25 Great Deals out of 2,899 listings starting at $1,600
Used Toyota RAV4
739 Great Deals out of 71,773 listings starting at $1,895
Used Toyota Celica
8 Great Deals out of 343 listings starting at $1,000
Used Nissan Altima
1,030 Great Deals out of 81,564 listings starting at $1,200
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Honda Civic Coupe
187 Great Deals out of 16,851 listings starting at $800
Used Nissan Maxima
305 Great Deals out of 25,213 listings starting at $999

Used Cars For Sale

2008 Toyota Camry Solara For Sale
8 Great Deals out of 176 listings starting at $3,400
2007 Toyota Camry Solara For Sale
10 Great Deals out of 274 listings starting at $3,100
2006 Toyota Camry Solara For Sale
7 Great Deals out of 307 listings starting at $2,799
2005 Toyota Camry Solara For Sale
7 Great Deals out of 153 listings starting at $2,800
2004 Toyota Camry Solara For Sale
159 listings starting at $2,998

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.