Its cold and no heat

[taxx]

So I did some seraches and found some possible solutiuons....

This morning on my way to work in the chilly 16 degree weather I found out my heater is only taking the chill off and not getting hot like it used to. The guage on the dash registered where it usually does and with the heater on the temp went down, pretty common, however it still wasn't blowing hot air.

The other issue is I only have two fan speeds now, it clicks through all the speeds on the selector but I really only get low and medium.

For the heat, I found that it could be the t-stat or the blender door? If the t-stat was bad wouldn't I have overheating problems and guage problems? I found info on the blender door but nothing saying how to fix it.

Would these problems be the same or do I have a fan problem too. My fan used to have 2.5 speeds before this and at one time it had all the speeds.

Any advice would be greatly appriciated.

 

[taxx]

found the cheap and easy fix thread for the blend door, Dead Link Removed

but still looking for insite on this issue I don't want to go too far before I narrow down the issue.

 

[dogfriend]

Your fan problem sounds like your Blower Motor Resistor is going out. It provides different fan speeds by limiting the current going to the fan. The diagram shows it as a small module next to the washer bottle/coolent overflow bottle.

The three values of resistance you should see are .25 ohms +/- 10%, .8 ohms +/- 10%, and 2.7 ohms +/- 10%.

 

[Raceit]

Heater core?

Probably not...but just a thought.

 

[taxx]

Originally posted by dogfriend
Your fan problem sounds like your Blower Motor Resistor is going out. It provides different fan speeds by limiting the current going to the fan. The diagram shows it as a small module next to the washer bottle/coolent overflow bottle.

The three values of resistance you should see are .25 ohms +/- 10%, .8 ohms +/- 10%, and 2.7 ohms +/- 10%.

hmmm. I was wondering what controlled the speed. i had this problem years ago when I was 17 and replaced the fan in my blazer and it did nothing so I figgured it wasn't that. I'll have to find those resistors and test them.

WHen I go out here in a bit I will have to pay attention to the engine and see how it is going, I'll check and see if I can hear the door open and close too

 

[TPLYNCH]

The heater control valve could be going too, and not routing coolant to the core. Check to make sure the vacuum line is still connected, and that the valve isn't leaking. It's in the engine just before the firewall where the hoses go thru (in case you didn't know).

 

[taxx]

thanks guys but she started working again. a grinding noise came from behind the glove box and I now have heat. GOtta check on te fan speeds sometime, but I will let you know if the heat continues to work.

 

[tenikiwon]

Blower Resistor

On my escort my blower did some funky things. My mechanic showed me where it was and wiggled and cleaned the contact points and all was good.

On the X I think the blower motor etc is under the radios heater controls etc.

 

[RFR2212]

Originally posted by taxxman2k
other issue is I only have two fan speeds now, it clicks through all the speeds on the selector but I really only get low and medium.

I think on mine I've got Off, low, medium, and high on the 94... but i haven't drivin it in awhile and fergot. Sometimes my heat just doesn't wanna work... Turn the knob, then nothing... 5min later try again, it's fine.. occasionally will cut out... Blows hot air, and my blower motor is right around a year old... Got me on this problem, but im kinda interested in what may fix your problem.
Pete

 

[tenikiwon]

Check the resistor. Unfortuneatly I don't know where it is on the X but my Escort was goofy like that.

 

[dogfriend]

On 1st gen Explorers the Blower Motor resistors are inside the housing next to the blower motor.

On the 2nd gen, my 97 manual shows the location next to the washer bottle under the hood (but not inside the HVAC housing like the 1st gen)