Either you have a bad brake booster (would make the brake pedal hard to push but shouldn't cause a studdering) or you have an ABS sensor that thinks one of the wheels is locking up and actuating the ABS.
I need you to check the sensors. There is one at each wheel. Make sure none of the wiring to them is skinned or damaged. Also, make sure the stator is clean and not covered in grease or dirt.
Let me know what you find. Also, 't if it is an ABS problem, when actuated, it doesn't matter how hard you push on the brakes. You won't stop faster. If it is the brake booster, the pedal will be stiff, but the harder you push, the quicker you should stop.
Let me know what you find.
Thursday, November 25th, 2010 AT 6:54 AM