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Master
1,102 Answers
- Posted on Feb 06, 2011
Re: I need to know how to change a timing belt on a 2002...
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Record the radio anti theft code data.
- Remove or disconnect the following:
Negative battery cable
Engine cover
Accessory drive belts
Idler pulley
Crankshaft pulley
Power steering pump pulley
Belt tensioner pulley
Upper and lower timing belt covers
- Support the engine with a floor jack and remove the engine mount.
- Rotate the engine to align the camshaft sprocket timing marks with the cylinder head cover timing marks.
Fig. Timing belt routing and timing marks-3.5L Engine
- Remove or disconnect the following:
Auto tensioner
Timing belt
Fig. Timing belt and related components-3.5L Engine
To install:
- Ensure that the engine is set to Top Dead Center (TDC).
- Prepare the auto tensioner for installation by compressing it in a vise and installing a retaining pin.
- Install the timing belt in the following order:
- Crankshaft sprocket
- Idler pulley
- Left bank exhaust camshaft sprocket
- Left bank intake camshaft sprocket
- Water pump pulley
- Right bank intake camshaft sprocket
- Right bank exhaust camshaft sprocket
- Tensioner pulley
- Install the auto tensioner. Do not remove the retaining pin at this time.
- Check that the crankshaft and camshaft timing marks are aligned correctly.
- Rotate the crankshaft 1 / 4 turn Counterclockwise .
- Rotate the crankshaft 1 / 4 turn Clockwise to return the engine to TDC.
- Loosen the tensioner pulley center bolt.
- Apply 44 inch lbs. (5 Nm) torque to the tensioner pulley as shown and tighten the center bolt to 32-41 ft. lbs. (43-55 Nm).
Fig. Adjusting the tensioner pulley-3.5L Engine
- Remove the auto tensioner retaining pin.
- Rotate the crankshaft 2 revolutions Clockwise , then wait 5 minutes for the auto tensioner to adjust.
- Measure the auto tensioner rod as shown. If the measurement is not 3.8-4.5 mm, then repeat the belt tensioning procedure.
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Fig. Measuring the auto tensioner rod-3.5L Engine
- When the auto tensioner measurement is correct, install or connect the following:
Engine mount
Upper and lower timing belt covers
Belt tensioner pulley
Power steering pump pulley
Crankshaft pulley
Idler pulley
Accessory drive belts
Engine cover
Negative battery cable
- Reprogram the radio anti theft codes.
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