Location of actuator

Welcome to 2CarPros.

Which actuator are you referring to? There are several. Also, the original post that led me to your thread indicated the camshaft position sensor. That is an engine component and on the engine. Is that what you are referring to?

If it is the camshaft actuator, here are the directions for replacement. The attached pics correlate with the directions.

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2010 Chevy Truck Silverado 3500 2WD V8-6.0L
Camshaft Position Actuator Replacement
Vehicle Engine, Cooling and Exhaust Engine Camshaft, Lifters and Push Rods Camshaft Service and Repair Removal and Replacement Camshaft Position Actuator Replacement
CAMSHAFT POSITION ACTUATOR REPLACEMENT
Camshaft Position Actuator Replacement

Removal Procedure

pic 1

1. Remove the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement (See: Oil Pump, Engine > Removal and Replacement > Oil Pump, Screen, and Crankshaft Oil Deflector Replacement).
2. Remove and discard the camshaft position (CMP) actuator solenoid valve (234).

Pic 2

Warning

Do not push or pull on the reluctor wheel of the camshaft position (CMP) actuator during removal or installation. The reluctor wheel is retained to the front of the CMP actuator by 3 roll pins. Pushing or pulling on the wheel may dislodge the wheel from the front of the actuator. The actuator return spring is under tension and may rotate the dislodged reluctor wheel, causing personal injury.

3. Loosen and separate the CMP actuator and timing chain from the camshaft. Position your fingers behind the actuator sprocket and pull the actuator away from the front of the camshaft. Never pull on the reluctor wheel when attempting to remove the actuator.

Pic 3

4. Remove the CMP actuator (235) and timing chain (208).

Pic 4

5. Insert and secure a tie strap (1) through the center of the actuator and over the reluctor wheel.

Installation Procedure

pic 5

1. Compress the timing chain tensioner guide and install the EN 46330.

Pic 6

Note:
* Properly locate the CMP actuator on the locating pin of the camshaft.
* The sprocket teeth and timing chain must mesh.
* The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.
* DO NOT use the CMP solenoid valve again. Install a NEW valve during assembly.

2. Identify the alignment hole (1) in the rear face of the CMP actuator and the locating pin (2) on the front face of the camshaft.

Pic 7

Warning

Do not push or pull on the reluctor wheel of the camshaft position (CMP) actuator during removal or installation. The reluctor wheel is retained to the front of the CMP actuator by 3 roll pins. Pushing or pulling on the wheel may dislodge the wheel from the front of the actuator. The actuator return spring is under tension and may rotate the dislodged reluctor wheel, causing personal injury.

3. Install the CMP actuator and timing chain. Align the hole in the rear face of the CMP actuator with the locating pin on the front face of the camshaft. If necessary, rotate the camshaft or crankshaft sprockets in order to align the timing marks. Use care to install the actuator completely onto the front of the camshaft. Position your fingers onto the face of the actuator sprocket and push the actuator onto the front of the camshaft. Never push on the reluctor wheel when attempting to install the actuator.

Pic 8

4. Place a straight edge across the front face of the engine block and inspect for proper installation of the CMP actuator and timing chain. With the CMP actuator properly and completely installed onto the front of the camshaft, the timing chain will not protrude beyond the front face of the engine block.

Pic 9

5. Install a NEW CMP actuator solenoid valve (234). With the CMP actuator properly positioned onto the camshaft, the CMP actuator solenoid valve can be threaded completely into the camshaft using light hand pressure. Tighten by hand until snug.

Pic 10

6. Inspect the sprockets for proper alignment. The mark on the CMP actuator sprocket (1) should be located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be located in the 12 o'clock position.

Pic 11

7. Remove the EN 46330.

Pic 12

Caution: Refer to Fastener Caution (See: Vehicle > Vehicle Damage Warnings > Fastener Caution).

8. Tighten the CMP actuator solenoid valve.

1. Tighten the valve a first pass to 65 Nm (48 lb ft).
2. Tighten the valve a final pass and additional 90 degrees using J 45059.

9. Install the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement (See: Oil Pump, Engine > Removal and Replacement > Oil Pump, Screen, and Crankshaft Oil Deflector Replacement).

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Let me know if that is what you meant.

Take care,
Joe

Welcome back:

Okay, I was way off. There are several air door actuators under the dash. Not knowing which one you need or the problem at hand, I will add the directions for replacement of all. If you let me know exactly what the symptoms are, I will be able to direct you to the correct one.

Also, some of these vehicles have dual climate control, which means there are two blend air door actuators, one for the left and one for the right. I will have both included.

All attached pictures correlate with the directions.

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Mode door actuator (this is responsible for the air flow directions)

See pics 1 and 2

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Air Inlet actuator (fresh air / Recirculate)

See pics 3 and 4

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Left blend air door actuator

See pics 5 and 6

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Right blend air door actuator

See pics 7 and 8

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Here are the directions for recalibration of the HVAC actuators. It is preferred to do it with a scan too, but can be done without. These directions are without.
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Alternate Method (w/o Scan Tool)
1. Clear all DTCs.
2. Place the ignition switch to the OFF position.
3. Install the HVAC actuator.
4. Connect all previously disconnected components.
5. Remove the HVAC/ECAS fuse for a minimum of 10 seconds.
6. Install the HVAC/ECAS fuse.
7. Start the vehicle.
8. Wait 40 seconds for the HVAC control module to self-calibrate.
9. Verify that no DTCs have set as current DTCs.

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I hope one if these helps. Also, the only thing I can think of that could be different is if you have automatic climate control. If that is the case, let me know.

Take care,
Joe