However, this problem occured with my van at all times and it turned out to be a vacuum leak. I had a broken line that went to the vacuum motor controlling the blend door for the ventillation system.
There are some vacuum lines that come through the firewall, from inside, and go to vacuum ports on the intake manifold. Follow these lines back to the motor and inspect for breaks or holes. If you are unable to find one, make sure the engine is warm, running, and AC blowing out the defrosters, and spray something flammable like penetrating oil (I've always used CRC brand but any will work) on the lines, connectors, and even where the intake manifold is bolted to the cylinder heads. When you find the vacuum leak, engine idle speed will increase. If that is not successful, you may want to check the vacuum lines under the dashboard. Your problem is definitely vacuum related and is probably near the motor because it seems to happen after the engine warms up.
Hope this helps!Mark
One reasons a Dodge W 250 defroster may not work is the blower motor relay. This can be replaced easily. If it isn't the relay, there may be a problem in defroster door binding. A mechanic will be able to determine the cause.
most likely a faulty fuel pump.
Because Dodge doesn't use a full dashboard grill like Ford and Chevy. A few holes in the dashboard doesn't cut it. Same with mine.
The vacuum line that goes to the defroster is probably disconnected, possibly on the fire wall.
rear window defroster light keeps flashing
what would cause all power windows to only work once in awhile and defroster to go out on a 1997 dodge intrepid
EBL is an abbreviation for electronic back light That is what Dodge calls the rear window defroster.
if its blowing, but not blowing cold its low on coolant. it takes r134a.
If the air is blowing but not hot, you may be drawing in too much cold air while driving down the road. If that is the case, try blocking off a portion of your radiator with a cardboard box. Do not block all of it off as your vehicle may overheat. You might need to have the heater core flushed if its not blowing out hot air. If it its not blowing out anything try replacing the blower motor.
replace it, it should just pop out of the console
This is a Dodge Ram 2500 Van that was converted.
depending on what is wrong with it and what type of conversion ist camping or touring