AC Compressor Clutch replacement
#1
AC Compressor Clutch replacement
Hi,
The CA on my 2007 F150 XLT stopped working today (21,000 miles!)
It has gas and when I looked closer I see that the the clutch engages and the outer hub turns, but the clutch seems to slip so bad the compressor will not turn. I can turn the compressor shaft with my fingers. To be sure I ran a jumper wire to the clucth coil and I get the same thing. It draws just under 4 amps "engaged".
Anyway has anyone ever replaced a cltcu on the truck? Are there are special tools needed?
Is it common for these things to slip?
I really appreciate the help and thanks in advance.
Howard
The CA on my 2007 F150 XLT stopped working today (21,000 miles!)
It has gas and when I looked closer I see that the the clutch engages and the outer hub turns, but the clutch seems to slip so bad the compressor will not turn. I can turn the compressor shaft with my fingers. To be sure I ran a jumper wire to the clucth coil and I get the same thing. It draws just under 4 amps "engaged".
Anyway has anyone ever replaced a cltcu on the truck? Are there are special tools needed?
Is it common for these things to slip?
I really appreciate the help and thanks in advance.
Howard
#2
Senior Member
Here's the service manual procedure,sorry the numbering is f'd up:
CLUTCH AND CLUTCH FIELD COIL
Special Tool(s)
Special Tool(s)
Removal
1. Remove the A/C compressor.
2. Remove the A/C clutch disc and hub bolt.
1 Using the special tool, hold the A/C clutch disc and hub.
2 Remove the A/C clutch disc and hub bolt.
3. Remove the A/C clutch disc and hub.
4. Remove the A/C clutch disc and hub spacer(s).
5. Remove the A/C clutch pulley snap ring.
6. CAUTION: Do not use air tools. Damage to the A/C compressor pulley or A/C compressor may result. Remove the A/C compressor pulley.
1 Install the special tool.
2 Remove the A/C compressor pulley.
7. CAUTION: Do not use air tools. Damage to the A/C clutch field coil or A/C compressor may result. Remove the A/C clutch field coil.
1 Install the special tool.
2 Install the special tool.
3 Remove the A/C clutch field coil.
Installation
NOTE: If installing a new A/C compressor, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.
1. Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage.
o Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat.
o Inspect for excessive wear, including grooving in the A/C clutch disc and hub or A/C compressor pulley that is more than fingernail depth.
o Inspect for roughness in the A/C compressor pulley bearing.
2. CAUTION: Do not use air tools. Damage to the A/C clutch field coil or A/C compressor may result. Install the A/C clutch field coil.
1 Place the A/C clutch field coil on the A/C compressor with the A/C clutch field coil electrical connector correctly positioned.
2 Place the special tool on the A/C clutch field coil.
3 Place special tool 412-065 on special tool 412-078.
4 Use the special tool to install the A/C clutch field coil.
3. Install the A/C compressor pulley.
4. Install the A/C compressor pulley snap ring.
5. Install the A/C clutch disc and hub spacer(s) and the A/C clutch disc and hub.
6. Install the A/C clutch disc and hub bolt.
1 Hold the A/C clutch disc and hub with the special tool
2 Tighten to 14 Nm (10 lb-ft) .
7. Measure and adjust the clutch air gap by adding or removing A/C clutch disc and hub spacers.
8. Install the A/C compressor.
CLUTCH AND CLUTCH FIELD COIL
Special Tool(s)
Special Tool(s)
Removal
1. Remove the A/C compressor.
2. Remove the A/C clutch disc and hub bolt.
1 Using the special tool, hold the A/C clutch disc and hub.
2 Remove the A/C clutch disc and hub bolt.
3. Remove the A/C clutch disc and hub.
4. Remove the A/C clutch disc and hub spacer(s).
5. Remove the A/C clutch pulley snap ring.
6. CAUTION: Do not use air tools. Damage to the A/C compressor pulley or A/C compressor may result. Remove the A/C compressor pulley.
1 Install the special tool.
2 Remove the A/C compressor pulley.
7. CAUTION: Do not use air tools. Damage to the A/C clutch field coil or A/C compressor may result. Remove the A/C clutch field coil.
1 Install the special tool.
2 Install the special tool.
3 Remove the A/C clutch field coil.
Installation
NOTE: If installing a new A/C compressor, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.
1. Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage.
o Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat.
o Inspect for excessive wear, including grooving in the A/C clutch disc and hub or A/C compressor pulley that is more than fingernail depth.
o Inspect for roughness in the A/C compressor pulley bearing.
2. CAUTION: Do not use air tools. Damage to the A/C clutch field coil or A/C compressor may result. Install the A/C clutch field coil.
1 Place the A/C clutch field coil on the A/C compressor with the A/C clutch field coil electrical connector correctly positioned.
2 Place the special tool on the A/C clutch field coil.
3 Place special tool 412-065 on special tool 412-078.
4 Use the special tool to install the A/C clutch field coil.
3. Install the A/C compressor pulley.
4. Install the A/C compressor pulley snap ring.
5. Install the A/C clutch disc and hub spacer(s) and the A/C clutch disc and hub.
6. Install the A/C clutch disc and hub bolt.
1 Hold the A/C clutch disc and hub with the special tool
2 Tighten to 14 Nm (10 lb-ft) .
7. Measure and adjust the clutch air gap by adding or removing A/C clutch disc and hub spacers.
8. Install the A/C compressor.
#3
Senior Member
Special tools:
Compressor Pully Remover
A/C Compressor Coil Installer
Compressor Clutch Holding Fixture
A/C Compressor Field Coil Installer
A/C Compressor Field Coil Remover
Let me know if you need the tool part #s.
Compressor Pully Remover
A/C Compressor Coil Installer
Compressor Clutch Holding Fixture
A/C Compressor Field Coil Installer
A/C Compressor Field Coil Remover
Let me know if you need the tool part #s.
#4
Thanks - that helped alot.
When I goggled the tools I found a good diagram.
I was able to get my Makita impact driver in there and pull out the center bolt then remove the disc/hub assembly. It looks like a little harmonic balancer. On mine the rubber joint is torn up and melted so the center hub just spun. That was the smell I smelt...
I guess I'll try replacing the hub and see what the compressor sounds like before I pull it.
Anyone else been down this road?
When I goggled the tools I found a good diagram.
I was able to get my Makita impact driver in there and pull out the center bolt then remove the disc/hub assembly. It looks like a little harmonic balancer. On mine the rubber joint is torn up and melted so the center hub just spun. That was the smell I smelt...
I guess I'll try replacing the hub and see what the compressor sounds like before I pull it.
Anyone else been down this road?
#5
Thanks - that helped alot.
When I goggled the tools I found a good diagram.
I was able to get my Makita impact driver in there and pull out the center bolt then remove the disc/hub assembly. It looks like a little harmonic balancer. On mine the rubber joint is torn up and melted so the center hub just spun. That was the smell I smelt...
I guess I'll try replacing the hub and see what the compressor sounds like before I pull it.
Anyone else been down this road?
When I goggled the tools I found a good diagram.
I was able to get my Makita impact driver in there and pull out the center bolt then remove the disc/hub assembly. It looks like a little harmonic balancer. On mine the rubber joint is torn up and melted so the center hub just spun. That was the smell I smelt...
I guess I'll try replacing the hub and see what the compressor sounds like before I pull it.
Anyone else been down this road?
thanks
TV