Brake Master Cylinder Problems of Dodge Challenger

The brake pedal on this vehicle goes to the floor when braking on gravel roads. It returns functioning after pumping the pedal. The Dodge dealership in lake havasu city, az has had the vehicle twice for a week or two and last week told us that these vehicles should not be driven on dirt roads because the dust gets on the abs sensor and can cause this problem. This car has been driven on this same road for several years and has just started doing this in the last year. The Dodge dealership has not been able to duplicate the problem, so they are saying there is nothing wrong. I paid them to change the master cylinder on the first visit to the dealership because I have experienced similar problems caused by the master cylinder in the past. Of course this was before abs and cars becoming so complicated that I can no longer work on them. Changing the master cylinder did have an effect on the problem, but it did not cure it. I believe this is a potentially dangerous problem and I am concerned that Dodge has not taken this problem as seriously as they should. The first case number that Dodge gave me was 79023033. They were supposed to send a technician to the dealership to help, but I don't know if that happened. The second case number is 79309555. They said we could take it to other dealerships for a second opinion at our expense which of course will be extremely expensive. Thank you for any help you can give.

See all problems of the 2011 Dodge Challenger 🔎.

This car is not frequently driven and serves as a sports car only, not a commuter, it only has 025,379 miles on it. It's a six speed manual trans with clutch pedal. While driving the car noticed what felt like brakes (all of them) dragging, increasing the load against the clutch and throttle. Not extremely but enough to notice. This seemed to be getting worse and I was concerned about a malfunction with computer override features like "hill-assist" and "stability control", both I generally switch off. After about 20 minutes of driving slow surface street speeds, stop & go, I came to a stop sign and the brake pedal went to the floor. The car did slowly stop. I was "on alert" and was using the gears to slow anticipating a possible failure. We were going to dinner and after about 4 more pedal to floor stops, it was parked for just over an hour and regained it's brake pedal pressure after sitting. I cautiously drove straight home. There were no warning lights on the dash of any type at anytime. I think this indicates some computer or other system failure connected with this. Conditions were a 90 plus degree day with the a/c-on. Things seemed hot under the hood and around the master cylinder and reservoir when I first parked for that hour. Other than "no warnings", the other significant fact is, neither of us smelled overheated brake materials as you typically would. This I find really odd because if it wasn't the brakes dragging on the car, why did they fail and go to the floor "while hot" ? as it is my habit at all times, I pulled the parking brake release a lot, assuring it was off through this. It's in working order and holds the car when I pressed it's pedal down, clicking and locking it to do so. I know of others who have had weird brake failures with other year model Challengers. Please check on this ! thank you for your time.

See all problems of the 2009 Dodge Challenger 🔎.