Hissing sound
50

Asked by Kyle Jan 10, 2016 at 02:43 PM about the Jeep Cherokee

Question type: Maintenance & Repair

My 2000 Jeep Laredo is making a hissing sound
coming from the brake pedal. When brake pedal is
pushed hissing stops and engine idles at less than
normal. Patient continues with car started with no
pressing on the brake and even with the e brake off
engine in park. Anybody know what the problem is
and how I would fix it?

8 Answers
159,045

Bob answered 8 years ago

Sounds like the vacuum brake booster may be leaking and bad.

3 people found this helpful.
Mark helpful
14,465

Guy answered 8 years ago

Sounds like the brake booster seal where the brake pedal rod goes into it is leaking vacuum into the cab of the truck. Likely that the booster needs replaced.

3 people found this helpful.
Mark helpful
14,465

Guy answered 8 years ago

Great minds Bob, typing again at the same time.

3 people found this helpful.
Mark helpful
159,045

Bob answered 8 years ago

Guy, beat you by 12 seconds. LOL

2 people found this helpful.
Mark helpful
14,465

Guy answered 8 years ago

Unless its loosing enough vacuum to make the pedal hard to press it's just annoying for now.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Hissing sound 1 Answer

    2000 Jeep Grand Cherokee Laredo is making a hissing sound coming from where the break is the hissing stops when the brake is fully pushed. Anybody know what I need to do?

    2000 Jeep Cherokee

    -

    Maintenance & Repair

  • Hissing sound 8 Answers

    My 2000 Jeep Laredo is making a hissing sound coming from the brake pedal. When brake pedal is pushed hissing stops and engine idles at less than normal. Patient continues with car started with no ...

    Jeep Cherokee

    -

    Maintenance & Repair

  • Hissing sound 4 Answers

    My 2005 Yukon XL just started making a hissing sound and that keeps louder when I accelerate. There are no warning signs on the dashboard and there is no smell of running hot.

    2005 GMC Yukon XL 1500 Fleet RWD

    -

    Maintenance & Repair

  • After I turn motor off sound like egg frying 2 Answers

    So after when k turn the engine off it sound like an egg is frying under the hood?

    2001 Jeep Cherokee Sport 4-Door 4WD

    -

    Maintenance & Repair

  • Hissing sound 14 Answers

    I inherited my dad's 1981 Chevy Silverado C10 and i noticed a hissing sound coming from underneath. It sounds really close to the transmission pan. It has a 350 tranny. It leaks tranny oil too. Cou...

    1981 Chevrolet C/K 10

    -

    Maintenance & Repair

Cherokee

Looking for a Used Cherokee in your area?

CarGurus has 1,661 nationwide Cherokee listings starting at $3,950.

Postal Code:

Shortcuts

Search Jeep Cherokee Questions

CarGurus Experts

  • #1
    swtcat13
    Reputation
    4,080
  • #2
    JimRoy
    Reputation
    3,740
  • #3
    Gene Arnett
    Reputation
    3,720
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Jeep Grand Cherokee
135 Great Deals out of 3,222 listings starting at $4,995
Used Jeep Compass
56 Great Deals out of 3,538 listings starting at $3,000
Used Jeep Wrangler
136 Great Deals out of 5,079 listings starting at $5,450
Used Jeep Grand Cherokee L
27 Great Deals out of 1,305 listings starting at $32,995
Used Jeep Grand Cherokee 4xe
11 Great Deals out of 569 listings starting at $47,910
Used Ford F-150
327 Great Deals out of 15,257 listings starting at $3,295
Used Toyota RAV4
88 Great Deals out of 2,086 listings starting at $3,888
Used Dodge Charger
36 Great Deals out of 630 listings starting at $4,888
Used Toyota 4Runner
10 Great Deals out of 319 listings starting at $9,900
Used Jeep Renegade
12 Great Deals out of 155 listings starting at $6,950
Used Ford Explorer
72 Great Deals out of 2,080 listings starting at $2,999
Used Dodge Durango
58 Great Deals out of 2,271 listings starting at $5,500
Used Honda CR-V
112 Great Deals out of 3,880 listings starting at $1,995
Used Jeep Gladiator
15 Great Deals out of 680 listings starting at $33,612
Used Jeep Commander
2 listings starting at $9,995

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.