I need to change the timing belt the Power stirring belt and the accessory belt.
I am looking for the schematic/directions from the repair manual.
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Removal & Installation
To install:
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Accessory serpentine belt routing—3.5L engine
Accessory serpentine belt (A) routing—3.8L engine
Testimonial: "Looks good! I'll let you know how it goes!"
Accessory serpentine belt routing—3.5L engine
3.5L Engine
Before servicing the vehicle, refer to the precautions at the beginning of this section.
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.
Timing belt routing and timing marks—3.5L Engine
Remove or disconnect the following:
Auto tensioner
Timing belt
Timing belt and related components—3.5L Engine
Click to Enlarge
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).
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.
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.
Yes it is highly recommended to change the water pump at the same time.
here are the instructions on replacing the water pump.
3.5L Engine
Before servicing the vehicle, refer to the precautions at the beginning of this section.
Drain the cooling system.
Disconnect the negative battery cable.
Remove the engine cover.
Remove the accessory drive belt.
Remove the idler pulley.
Remove the crankshaft pulley.
Remove the power steering pump pulley.
Remove the tensioner pulley.
Remove the upper and lower timing belt covers.
Remove the No. 3 engine mount.
Remove the timing belt.
Remove the timing belt tensioner.
Remove the water pump.
To install:
Water pump bolt locations and torque specifications—3.5L Engine
Click to Enlarge
Installation is the reverse of the removal procedure, while using the following torque values:
Water pump bolts: refer to the illustration
Crankshaft pulley: 130–138 ft. lbs. (180–190 Nm)
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If you need a schematic, I think you are probably not experienced enough to do this job yourself.
It is aroudn 4 hours work - including opening up the engine, aligning the cams, etc.
If you get it wrong, you break your engine - straight away, no messing. You will not get a second chance to get it right.
If you are confident that this is something you can do yourself, you will be able to work it out - it is very straightforward - if you know what you are doing.
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Hey, I'd rather be OVER prepared than under. I know we only get one shot at this. But thanks
I read some place that you should think about doing the water pump since it's co-located at 72k miles you want to give a guess on that
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