|
Author
|
Topic: ac's problems
|
kris
¯
Member # 9057
|
posted
 
 
On my 87, I'm having problems with my AC. It runs fine while driving, but when I stop the rpm's drop. Sometime the car stalls. As soon as I turn it on vent it stops and the rpm's go up.
Any ideas??
[ April 21, 2009, 02:26 AM: Message edited by: kris ]
Posts: 11 | From: vacaville, ca | Registered: Mar 2009
| :
|
|
166 Merlo
FELONY
MOTORSPORTS
Member # 1549
|
posted
Running the ac draws a lot of current. You might want to check your grounds and also take a voltage reading with your car idling and the a/c on. It should be over 14 volts. then post up with what you found
--------------------
'89 - Boss Coupe
'70 - Drop Cutthang
'68 - Cougnut
'87 - 0166, Its real
Posts: 3954 | From: Thebay | Registered: Jul 2002
| :
|
|
94AFRCobra
¯
Member # 9097
|
posted
Sounds like the idle up circuit for the A/C isn't working. The idle up circuit raises the idle to compensate for the additional load of the A/C compressor. This circuit is controlled by the ECM. When the ECM gets the input that the A/C is on it sends a signal to the IAC to raise the idle., You could have a bad IAC, the passages could be partially plugged or the ECM may not be getting the signal that the A/C is on.
Posts: 24 | From: Sacramento | Registered: Apr 2009
| :
|
|
|
Email this post to someone!
Printer friendly view of this Ford topic
