1997 e-150
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1997 e-150
Hi all,
Noticed a post about a 1990 issue similar to mine, but I didn't want to hi-jack their thread.
I have a 97 E-150 with A/C. When I turn on the heater control unit to either heat or a/c and the blower motor fan control switch to any setting I do not feel anything coming from any vents above or below the dash. However every once in awhile I can hear that it is putting a small strain on the motor as the motor tends to bog down alittle like it normally does when the a/c is on. When the heater control unit is turned off there is no strain on the motor.
I don't want to go replacing things and blowing money that isn't necessary on parts that aren't bad.
Any help on this issue would be greatly appreciated as I would like to get this fixed before the cold weather actually gets here.
Thanks for your time.
Ron S.
Noticed a post about a 1990 issue similar to mine, but I didn't want to hi-jack their thread.
I have a 97 E-150 with A/C. When I turn on the heater control unit to either heat or a/c and the blower motor fan control switch to any setting I do not feel anything coming from any vents above or below the dash. However every once in awhile I can hear that it is putting a small strain on the motor as the motor tends to bog down alittle like it normally does when the a/c is on. When the heater control unit is turned off there is no strain on the motor.
I don't want to go replacing things and blowing money that isn't necessary on parts that aren't bad.
Any help on this issue would be greatly appreciated as I would like to get this fixed before the cold weather actually gets here.
Thanks for your time.
Ron S.
Fleet Mechanic
Joined: Feb 2006
Posts: 1,776
Likes: 5
From: Lorain County, Ohio
Do you mean there's no airflow from ANY of the outlets? Floor, instrument panel or defrost?
If so, the evaporator case is probably full of dirt and debris (or possibly a rodent nest) blocking the airflow. Could also be that the blower motor shaft is just spinning inside the squirrel cage.
Both of these possibilities can be checked by pulling the blower motor.
If so, the evaporator case is probably full of dirt and debris (or possibly a rodent nest) blocking the airflow. Could also be that the blower motor shaft is just spinning inside the squirrel cage.
Both of these possibilities can be checked by pulling the blower motor.
Logistics Pro
Joined: Jul 2003
Posts: 3,595
Likes: 52
From: Lawton, Oklahoma
It sounds to me like the compressor is engaging with the system turned on but the blower itself is defective or the blower resistor has a complete open circuit to ground through the diode. The compressor will draw the engine rpms down as normal but the blower is inop.
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