January 1, 2012 9:26:39 PM CST
hey guys just looking to see if someone else has experienced this, blower issue with heater, nl ac, in 3.9l, here is problem, for longest time blower ony work on med high slmetimes on full high, now blower seems not wlrk at all, replaced head unit and resister, still no blower, once all i did was slam door and came on, because of checked fuses and for loose wires at fuse box does nlt seem to be problem. whats got me puzzled is that parts guy at wreckers knew of problem with blower only on high when i called looking for parts....any thoughts before i tear out entire dash?
hey guys just looking to see if someone else has experienced this, blower issue with heater, nl ac, in 3.9l, here is problem, for longest time blower ony work on med high slmetimes on full high, now blower seems not wlrk at all, replaced head unit and resister, still no blower, once all i did was slam door and came on, because of checked fuses and for loose wires at fuse box does nlt seem to be problem. whats got me puzzled is that parts guy at wreckers knew of problem with blower only on high when i called looking for parts....any thoughts before i tear out entire dash?
There is nothing to be gained from pulling the dash out. You already have access to all the components in the circuit so you just need to follow a wiring diagram using a test light that reads both power or ground. It can only be the resister, blower switch or connecting wiring. They all control the ground side of the circuit. the pump receives power all the time.