Hi, I have a 90 isuzu pick ls 2.6l aprox 150000 miles


latly i have knoticed the heater hasnt been puting out much pressure which is strange it has always had high pressure got so hot would run you outta there but latly the pressure has gone down hill


There is also a problem with the dash lights the red BREAK light and yellow Rr. Anti Lock light have come on and i cant find a problem anywere the breaks are less then a year old any help would be apriciated