bitterdog
Member
- Joined
- April 7, 2008
- Messages
- 20
- Reaction score
- 1
- Year, Model & Trim Level
- 99 explorer limited 4.0 s
Good Afternoon.
I have a 99 explorer where my A/C clutch wont engage.
If I jump the a/c relay pin 85 to pin 87a it will engage.
If I jump the a/c relay pin 86 to pin 87a will NOT engage.
If I jump pin 30 to 87a it will engage.
Swapped out the relay - no go
I jumpered the low side pressure switch - no go
I checked the low side harness for continuity and Voltage 13.8v
I assume the red/white striped wire is from the EATC? There is no power from it.
The black/white wire read 13.8v
I jumpered the high side switch - no go
I checked the high side harness for continuity and Voltage 13.8v also
I then Jumpered the high side harness and low side harness and still no clutch engaged.
All fuses checked.
Refrigerant levels read good when I jump the relay and turn on the compressor
Did a EATC self test - only code was for a bad blend door.
I don't know what else to check. I would greatly appreciate any other suggestions besides take it to the shop I live in Arizona and it will be 100 degrees this weekend.
Feels like I'm getting close to leaning towards the PCM
I have a 99 explorer where my A/C clutch wont engage.
If I jump the a/c relay pin 85 to pin 87a it will engage.
If I jump the a/c relay pin 86 to pin 87a will NOT engage.
If I jump pin 30 to 87a it will engage.
Swapped out the relay - no go
I jumpered the low side pressure switch - no go
I checked the low side harness for continuity and Voltage 13.8v
I assume the red/white striped wire is from the EATC? There is no power from it.
The black/white wire read 13.8v
I jumpered the high side switch - no go
I checked the high side harness for continuity and Voltage 13.8v also
I then Jumpered the high side harness and low side harness and still no clutch engaged.
All fuses checked.
Refrigerant levels read good when I jump the relay and turn on the compressor
Did a EATC self test - only code was for a bad blend door.
I don't know what else to check. I would greatly appreciate any other suggestions besides take it to the shop I live in Arizona and it will be 100 degrees this weekend.
Feels like I'm getting close to leaning towards the PCM