Brake issue

[KITT]

During Mustang Week at Darlington my car went to the left during burnout. I assumed the dual linelock solenoid had failed for the left wheel. I checked the linelock system and all is correct. I did get some air out of the system after bleeding and I went for a test drive. Found a safe hidden parking lot and had the same result, car goes left. To rule out the linelock system I tried the old dump it and grab the brake method Ive done for years. When I went to grab the brake pedal it was like stepping on concrete. Pedal would not even consider moving at all and the car took off ofcourse. No ABS light or any problems, traction control off in tune. Has anyone else seen this. Thanks for any input.

 

[05stroker]

During Mustang Week at Darlington my car went to the left during burnout. I assumed the dual linelock solenoid had failed for the left wheel. I checked the linelock system and all is correct. I did get some air out of the system after bleeding and I went for a test drive. Found a safe hidden parking lot and had the same result, car goes left. To rule out the linelock system I tried the old dump it and grab the brake method Ive done for years. When I went to grab the brake pedal it was like stepping on concrete. Pedal would not even consider moving at all and the car took off ofcourse. No ABS light or any problems, traction control off in tune. Has anyone else seen this. Thanks for any input.

Are both of you tires spinning in the burnout?

 

[KITT]

Yes sir. leaving two marks everywhere today lol

 

[KITT]

Also want to add the brake system works perfect and feels great under normal and spirited driving!

 

[travelers]

Try putting a pressure gage at each side to see if your getting the same pressure. You may have a brake hose failing.

 

[KITT]

Air was trapped in the ABS module. Activating the ABS opened the valves inside and allowed the air to the lines where I bled alot of air and system is fine now. Thanks for ideas I did check the whole system and lines afterwards for leaks and wear. Car has 23K miles so everything is still like new.