Originally Posted by
BeerCan500
Anybody know if the ac evaporator on an 86 f250 can be gotten to from under the hood so it can be cleaned/blown out. I think it might be pretty dirty.
Reason I say this is because my ac system checks out fine. Good cooling etc...except I noticed when using max ac the blower has slowly decreased the amount or volume of air. It used to blow like gangbusters, but now about the same as regular ac.
Could it be something else? When I switch to heater mode the fan blows real hard again, so I don't think it's the fan. Besides I replaced the blower motor and resistor about 6 months ago.
Thanks for the help and ideas...
BeerCan500
Yes you can.
Remove the blower motor assembly and you can see the evap(partially)
You can try vacuuming with a shop vac(vacuum cleaner) .
If it is real dirty. You can take the housing apart like you were going to replace the evap.
A few screws hold it together.
One bolt goes through the firewall..It is next to your engine on the lower side...Accessible from inside of cab..
To do a really good cleaning, I would remove the cover.
Whichever way you go, You are going to realize a big differnce in volume of air.
Whatever type of cleaner you use is your choice. There are MANY good cleaners out there...Keep in mind the evap is aluminum.
Hope this helps..Trav...
