Mercur ... 2/23/2020
2003 Mercury Grand Marquis LS 8 Cyl 4.60L
Body & Interior
Why wont my heater/AC fan blow any air?
I purchased this car one month ago and the heater fan stopped blowing air literally as I drove it off the car lot, on the way home several dash lights came on and the headlights were dim. It stalled twice and it needed to be jump started both times just to get it in the driveway. I changed the alternator out and everything worked fine after that, even the heater fan. Now last week the heater fan stopped running again, (alternator seems fine) the car is new to me and I ran the blower on high 90% of the time having a short drive to work and back so Im not positive if the other fan settings were working properly or not. All it does is makes a clicking sound as I push the fan setting wheel up to its highest setting and release it. I changed out the blower motor but that doesn't seem to be the problem either. I was going to change the resistor next but Im not sure if that is the problem either. Ive seen several things online about a "blend door" and Im not sure where to go from h
First question - is there any used car warranty? Typically, there is at least a 30 - 90 day warranty period - so check that first. Next, have the alternator and charging system tested for free - at any local auto parts store.