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Hello guys, I'm in need of yall's help again. I got the sanden conversion kit from classic air auto in my house waiting to be installed. Problem I am having is the dash controls were not working. Fixed all but one. The blower is not engaging. The pig tail was melted a bit and I changed that. I also went and put a new switch, still nothing. I'm not much of a electrician. But I did buy the chilton book. But doesn't really help much. If I could get suggestions on how I would diagnose the problem. Where to start,what part is wrong. What tools I need.... I also checked the fuses. They seem to be good. Thanks for your attention.
Is the blower not working a new problem or you've had no heat/vent for some time?
If you have a multimeter you could see if you're getting voltage to the blower which would rule out a wiring/switch issue (or not). Since you found some melted wiring it might have taken out the other end (blower).
On the Sanden kit - is it just the compressor swapout or did you do the whole kit?
It was working at one point. But then the a/c quit working. That was a couple of years ago. And I bought the whole kit. 856.00$ with tax. I picked it up today(Tampa Fl). Nice people and have a lot of what they offer in stock.
When it quit working did the compressor seize up or it just stopped blowing air (cold, hot, vent) in the truck?
The whole kit - does that mean you'll need to take the AC components out of the back of the dash to make room for the new stuff? If so, it'll be a good time to trace out this issue.
And when the compressor seized up the blower stopped working as well?
ah ok, you're doing the same thing i'm going through to get AC working again (kit). Looks like you'll need to get at the blower (at least the wiring for it) to see if locked up or just not getting the signal.
Pic: 19B888 = D5TZ-19B888-A .. A/C Vacuum Control Selector Valve Assy. (Motorcraft YH-285) / Obsolete ~ 32 available NOS
1973/79 F100/350 & 1978/79 Bronco with factory installed integral A/C
All the vacuum lines connect to this valve, that also contains the "kicker switch" to turn on the A/C
19986 is the A/C & heater blower switch, 9A050 is the dual fuel tank switch, 18502 is the A/C heater temperature regulator valve that is usually trouble free.
Does the blower work on any position? Or is it just the AC? If it works at all, I would suspect the switch. If it doesn't work at all, the blower motor itself could be bad. Since you are swapping out your evaporator core I think you will be in optimum position to physically check the blower motor. Might also be helpful to know whicj AC you have - factory economy, factory deluxe, or aftermarket (there are numerous posts telling how to tell the difference.)
Does the blower work on any position? Or is it just the AC? If it works at all, I would suspect the switch. If it doesn't work at all, the blower motor itself could be bad. Since you are swapping out your evaporator core I think you will be in optimum position to physically check the blower motor.
Might also be helpful to know which AC you have - factory economy, factory deluxe (these two are "dealer" A/C's), or aftermarket (there are numerous posts telling how to tell the difference). Here is the difference between the 3types of Ford A/C:
I've posted the following info over 100 times here on FTE
1) Factory installed integral A/C is combined with the heater. The A/C controls are in the same panel as the heater controls.
2) Deluxe dealer installed A/C is combined with the heater. The two A/C switches are located in the HUGE dash bezel that sweeps across the entire right side of the dash, covering up the glove box.
There's a "hang-on" glove box bolted to the bottom of the dash.
3) Economy dealer installed A/C is not combined with the heater. The two A/C switches are located in a panel that also contains two A/C registers.
This panel fits into the dash to the left of the glove box.
Rbeck: If the truck only has one fuel tank, there is no 9A050 fuel tank selector switch in the control panel.
Ok so now I'm in the middle of changing out the resistor. I seems to be local part suppliers don't sell that very resistor. Would y'all know where I could buy one?
Ok so now I'm in the middle of changing out the resistor. I seems to be local part suppliers don't sell that very resistor. Would y'all know where I could buy one?
D3TZ-19706-A .. Blower Motor Resistor / Obsolete ~ Last MSRP: $17.15 - Dealer net cost: $10.29.
1973/79 F100/350 & 1978/79 Bronco with Factory Installed Integral A/C or Hi/Lo Comfort Vent System.
NOS PARTS SOURCE in Olathe KS has 1 = 913-220-5746.
DAN COLLINS FORD in Lakeview OR has 1 = 541-947-4965.
NOS PARTS LTD in Waxahachie TX has 4 = 972-937-2201.
GREEN SALES CO. in Cincinnati OH has 4 = 800-543-4959.
Thanks numberdummy! I ordered the resistor for 55$. A little more than I wanted but I needed it. Not only did I have to order the resistor, but I ordered the evaporator core from LMC for 350$. Putting AC in my truck has now put me 1300$ behind. But at least everything is new... this week I should be rolling with cool air!
Thanks everyone with your help!
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(these two are "dealer" A/C's), or aftermarket (there are numerous posts telling how to tell the difference).
. Putting AC in my truck has now put me 1300$ behind. But at least everything is new... this week I should be rolling with cool air!