aos motor
New User
Joined: Feb 2002
Posts: 1
Likes: 0
aos motor
I recently had the head gaskets replaced on my 1988 F150 302. Although it is running good now , the idle will run from about 500 to 1200 rpm and continue going up & down. The mechanic told me that replacing the aos motor should correct the idle.
I can not find anything in my manuals about an aos motor.
Can anyone tell me what this is?
Thanks
Jim
I can not find anything in my manuals about an aos motor.
Can anyone tell me what this is?
Thanks
Jim
Senior User
Joined: Nov 2001
Posts: 151
Likes: 0
aos motor
never hears of aos motor before. IAC is more likely what he was talking about. Sounds to me like it could possibly be a throttle position sensor, in our Fords they have been known to cause the idle to do this. It won't do you any good to throw a new one on either. The TPS must me set with the key in the on position and the engine off to read .98-.99 volt. You can check this by piercing the wires on the TPS with pins and using a voltmeter to check the values. See people all the time buy a new tps, throw it on, then come back to complain it didn't work. Remember the ECM needs to be reset, or it may not "recognize" the new part.
