Jim Grant's Tech Tips
‘00 Dodge Neon, Brake to the Floor
Q: My daughters brakes went to the floor on her ‘00 Dodge Neon, what could this be?I suspect the power brake booster. There is still brake fluid in the reservoir.Could you just about diagnose this?
- Steve Reeves
A: With the engine off pump the brake pedal a half dozen times. The pedal should become hard. Then start the engine with your foot still on the brake pedal. If the pedal suddenly gets easier to push and drops some then the brake booster is likely okay. Whenever a customer has a brake pedal that goes to the floor and there is no fluid loss then it is likely that the brake master cylinder has an internal leak. If the vehicle has an anti-lock brake system then you want to be sure there is not an ABS problem occurring that is causing a pedal drop. If the brakes are in good condition, correctly adjusted and the brake pedal goes to the floor when the vehicle isnít moving and there is no fluid loss I’d be looking real hard at the brake master cylinder as the cause.