How to replace the primary cam gear and timing chain on 2002 Cadillac DeVille?

In order to replace the timing chain and sprockets, first, unplug the Oil Pump. Set the primary timing marks with the use of crankshaft rotation socket (J 39946). Then rebend and remove the secondary timing chains, primary drive chain tensioner. The next large step is to remove the camshaft intermediate sprocket retaining bolt and then remove the timing chain, crankshaft sprocket and camshaft intermediate sprocket as a one piece assembly. For installation, center the timing marks of camshaft intermediate and crankshaft snowtops vertically in the installed position. Mount the starting timing chain on the drive sprockets by placing the number 1 piston at the top dead center (TDC) and therefore the crankshaft key way is at the 1'o'clock. Use the crankshaft rotation socket (J 39946) to line up the crankshaft key with the drive sprocket and install the timing chain, crankshaft sprocket and the camshaft intermediate sprocket as an assembly. Install the camshaft intermediate sprocket retaining bolt and tighten it to 60 nm, 44 ft. Lbs. The tensioner pin must not be removed until the installation of the secondary timing chains. Transition to installing the primary drive chain tensioner and the secondary timing chains. Lastly, undo the pin from the primary timing chain tensioner release lever and make sure the primary timing marks are vertical before closing the Oil Pump.

OEM 2002 Cadillac DeVille Cam Gear

Camshaft Gear

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2002 Cadillac DeVille Camshaft Gear, Driver Side
Part Number: 12556026
$13.04 MSRP: $35.54
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Product Specifications
- Other Name: Sprocket, Engine Camshaft; Variable Valve Timing Sprocket; Timing Gear; Cam Gear; Timing Gear Set
- Position: Driver Side
- Item Weight: 0.90 Pounds
- Item Dimensions: 4.2 x 4.1 x 0.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12556026
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Cadillac DeVille Submodels:
- Base, Concours, d'Elegance, DHS, DTS | 8 Cyl 4.6 L GAS
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2002 Cadillac DeVille Camshaft Gear, Driver Side
Part Number: 12577433
Product Specifications
- Other Name: Sprocket-Camshaft Intermediate Drive Shaft; Variable Valve Timing Sprocket; Timing Gear; Cam Gear; Intermediate Gear; Timing Gear Set; Sprocket, Engine Camshaft
- Position: Driver Side
- Replaces: 12568563, 12556021
- Item Weight: 1.80 Pounds
- Item Dimensions: 5.7 x 5.7 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12577433
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Cadillac DeVille Submodels:
- Base, Concours, d'Elegance, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
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2002 Cadillac DeVille Camshaft Gear
Part Number: 12556028
Product Specifications
- Other Name: Sprocket, Engine Camshaft; Variable Valve Timing Sprocket; Timing Gear; Cam Gear; Timing Gear Set
- Item Weight: 0.90 Pounds
- Item Dimensions: 4.2 x 4.2 x 0.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12556028
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Cadillac DeVille Submodels:
- Base, Concours, d'Elegance, DHS, DTS | 8 Cyl 4.6 L GAS
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2002 Cadillac DeVille Camshaft Gear, Passenger Side
Part Number: 12556027
Product Specifications
- Other Name: Sprocket, Engine Camshaft; Variable Valve Timing Sprocket; Timing Gear; Cam Gear; Timing Gear Set
- Position: Passenger Side
- Item Weight: 0.80 Pounds
- Item Dimensions: 4.2 x 4.2 x 0.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12556027
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Cadillac DeVille Submodels:
- Base, Concours, d'Elegance, DHS, DTS | 8 Cyl 4.6 L GAS
View related parts
2002 Cadillac DeVille Camshaft Gear, Passenger Side
Part Number: 12555378
Product Specifications
- Other Name: Sprocket, Engine Camshaft; Variable Valve Timing Sprocket; Timing Gear; Cam Gear; Timing Gear Set
- Position: Passenger Side
- Item Weight: 0.90 Pounds
- Item Dimensions: 4.3 x 4.3 x 0.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12555378
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Cadillac DeVille Submodels:
- Base, DHS, DTS | 8 Cyl 4.6 L GAS

2002 Cadillac DeVille Cam Gear

With a comprehensive array of OEM 2002 Cadillac DeVille Cam Gear, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2002 Cadillac DeVille Cam Gear are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2002 Cadillac DeVille Parts Questions & Experts Answers

Q: How to replace the primary cam gear and timing chain on 2002 Cadillac DeVille?
A: In order to replace the timing chain and sprockets, first, unplug the Oil Pump. Set the primary timing marks with the use of crankshaft rotation socket (J 39946). Then rebend and remove the secondary timing chains, primary drive chain tensioner. The next large step is to remove the camshaft intermediate sprocket retaining bolt and then remove the timing chain, crankshaft sprocket and camshaft intermediate sprocket as a one piece assembly. For installation, center the timing marks of camshaft intermediate and crankshaft snowtops vertically in the installed position. Mount the starting timing chain on the drive sprockets by placing the number 1 piston at the top dead center (TDC) and therefore the crankshaft key way is at the 1'o'clock. Use the crankshaft rotation socket (J 39946) to line up the crankshaft key with the drive sprocket and install the timing chain, crankshaft sprocket and the camshaft intermediate sprocket as an assembly. Install the camshaft intermediate sprocket retaining bolt and tighten it to 60 nm, 44 ft. Lbs. The tensioner pin must not be removed until the installation of the secondary timing chains. Transition to installing the primary drive chain tensioner and the secondary timing chains. Lastly, undo the pin from the primary timing chain tensioner release lever and make sure the primary timing marks are vertical before closing the Oil Pump.