I have a 97 ranger and I have replaced the resistor for the blower motor but yet the motor wont come on. one thing I didn't under stand is I have power to my plugin for the blower motor until you turn the heater on the the power goes away . I just bought this truck for my son.

You turn the blower speed switch, and you lose/have no power at the pigtail? It may be time to replace the switch.

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

when it is turned off whole heater it has power as soon as you turn it on defroster or any setting you loose power to plugin for blower motor

I took the heater out and put my test light on the plug for the blower speed switch it lights up until I turn the heater on then it goes off just like it does at the motor plug so im thinking maybe the main switch is bad it does not matter what your on defroster or ac

I just spent some time trying to find a wiring diagram for your truck, with no luck. A diagram would tell me how the blower motor pigtail and heater control switch tie in to each other. We are talking about turning the defrost/heat/AC selector switch, and that kills your power to the blower motor pigtail?

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

yes its got me stumped ok so I just borrowed my buddy voltmeter and I get power at main box on drive side it don't drop off. I get power on box behind the headlight that has blower relay it does not drop off so this is where I stand I get power on one side of my plugin to blower motor when main heater switch is off. drops of when turned on it does the same thing at the blower speed switch in cab. I already replace the resistor found the old one corroded and plug had a melt spot on it replaced the relay as well.

Those resistor banks and pigtails are known to go bad, quite common. If I could find a wiring diagram, I might be able to help. Right now, it sounds like you might have a switch problem, maybe the heater selector switch, but I won't positively say that without the diagram.
Anyone know where a diagram can be found?

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

If its in a owners manual I have one. I will look. I have a 97.

__________________
97 ORIGINAL
4.0 XLT Reg Cab Manual on Manual Transfer
Best truck I've ever owned.

I found a diagram for a 95 is it the same

Great. I was looking and running out of options other than asking a neighbor half mile up the road.

__________________
97 ORIGINAL
4.0 XLT Reg Cab Manual on Manual Transfer
Best truck I've ever owned.

http://i1127.photobucket.com/albums/..._97_ranger.gif this one is for a 97

Good find!! I'd say it's the AC/Heater control assembly, the selector switch as I was calling it. When you have that in any position besides off, the blower will be running on low speed, unless you turn the speed up on the blower control. As you can see, when the blower speed selector is on high, it bypasses the resistor bank, and gets full voltage.
That's what it looks like to me. Does the switch feel like it's got some play in it like side to side, or in or out?

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

no more play than the other switches. thats cool thanks now wait till Monday till junkyard opens they don't sell that switch a local parts store

10/4, good luck, please let us know how you make out.

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

let me ask you this without that switch working right would that cause you not to get ground on other side of motor plug cause I read somewhere if you pretty much hook your test light up backwords you should have ground there and it would light the test light up