Rough idol and hard break

Asked by lilsexy57 Apr 21, 2018 at 06:37 PM about the 2003 Mercury Sable LS Premium Sedan FWD

Question type: Maintenance & Repair

My 2003 started having a rough idol and
hard to push break

2 Answers

380

The braking issue is due to the lack of vacuum coming from the engine (because of it running poorly) to the brake booster causing you to have no power braking. As for rough idle... it could be countless reasons. Check engine light on?

10

you need a new brake booster the rubber liner broke inside the booster so now theres a huge vacuume leak thats why its running crappy.

Your Answer:

CarGurus Experts

  • #1
    JP1956
    Reputation
    1,920
  • #2
    Guy Outland
    Reputation
    790
  • #3
    Paul Tuck
    Reputation
    690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Taurus
5 Great Deals out of 80 listings starting at $2,499
Used Nissan Altima
27 Great Deals out of 673 listings starting at $3,153
Used Toyota Camry
48 Great Deals out of 1,142 listings starting at $4,795

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.