Hi everyone I'm new.
I own a 2003 ln172 diesel same as ln167 just extra cab and am having brake problems. After 3 pumps of the pedal brakes go hard and handbrake light comes on. If I hold my foot on brake when it's hard it will slowly sink back down to normal.
I have replaced booster and vac pump. Problem started after I went threw mud and water and busted the alternator so I changed it now I have this problem after changing alternator Cheers in advance.