1972 Oldsmobile Cutlass Supreme Break Booster Problem? Unidentified sound?

5

Asked by Jan 06, 2014 at 02:03 PM about the 1972 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

I was given a 1972 Oldsmobile Cutlass Supreme from a relative a few months ago and
up until a maybe a week ago i noticed a hissing sound coming from what it seems like
behind the dash on the left side of the steering wheel. Seems like its coming from the
break booster. Its not a hissing sound when i apply the breaks but a hissing sound
right from ignition and as i accelerate it also gets a bit louder. Anyone know what it
might be? The car is in great condition by the way, need to change the oil pan due to a
leak but in the meanwhile i'm keeping an eye on the level every few days. Thank You
guys.

2 Answers

78,515

From the description it sounds like the vacuum booster itself, the only real way to find it is to get a mechanics stethoscope and take out the metal probe unit and just use the hose and run along under the dash where the brake pedal rod goes through the firewall, if you hear a hiss right where the rod goes through then the booster is leaking, also check the booster check valve and main vacuum hose to the booster for any leaks.

Best Answer
3,505

And the good new is that if its the brake booster they are really easy to rebuild yourself. Buy a rebuild kit at the auto parts store and invest a sat afternoon and you're good to go. Having said that they rarely go so be sure to check all other vacuum lines in the area first like tennisshoes said.

Your Answer

Add photo

Related Questions

Search Oldsmobile Cutlass Supreme Questions

Oldsmobile Cutlass Supreme Experts

#1 munron
munron
Reputation 560
#2 tennisshoes
tennisshoes
Reputation 350
#3 Rog Oneal
Rog Oneal
Reputation 320
View All

Related Models For Sale

Used Chevrolet Monte Carlo
17 Great Deals out of 1,734 listings starting at $1,695
Used Buick Regal
209 Great Deals out of 11,280 listings starting at $1,995
Used Chevrolet Caprice
174 listings starting at $10,900
Used Chevrolet Impala
998 Great Deals out of 36,811 listings starting at $1,800
Used Chevrolet Camaro
631 Great Deals out of 39,687 listings starting at $2,995
Used Ford Mustang
719 Great Deals out of 39,136 listings starting at $1,000
Used Pontiac Grand Prix
31 Great Deals out of 3,796 listings starting at $1,195
Used Dodge Charger
546 Great Deals out of 29,486 listings starting at $2,343