Sudden Acceleration when braking

Asked by spinco May 18, 2011 at 04:03 PM about the 2002 INFINITI QX4 4WD

Question type: Maintenance & Repair

Has anyone experienced sudden acceleration problems when braking? It has happened to me at least 4 times recently. Once I barely touched the brakes when leaving a gas station and the engine started racing. I held down the brake and threw it into neutral and watched the tach go up to 5000 rpm before dropping back down to a normal 800 rpm.

3 Answers

Iherrera78256 answered 13 years ago

I was just in an accident today due to this. My hand break didn't work and I slammed into a tree. Please report this becuase this shouldnt happen and don't want this to happen to someone else

Mark helpful
50

David answered 13 years ago

it sounds like you hve either a bad brake booster or the one way check valve in the main vacuum line coming out of the booster is bad

2 people found this helpful.
Mark helpful

spinco answered 13 years ago

Thanks, I will mention this to my mechanic since I need to bring it in for some service.

Mark helpful

Your Answer:

Related Questions

QX4

Looking for a Used QX4 in your area?

CarGurus has 1 nationwide QX4 listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search INFINITI QX4 Questions

CarGurus Experts

  • #1
    uksean
    Reputation
    480
  • #2
    brit152
    Reputation
    160
  • #3
    viviang62
    Reputation
    150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Nissan Pathfinder
30 Great Deals out of 1,279 listings starting at $3,888

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.