I need to change my timing belt on my 2002 S60 Volvo. Where can I get a diagram or manual on how to do this?

The timing belt is very tricky to replace and requires a special tool to align the pulleys. It sounds like you may be off a tooth or two on the pulleys which will affect the cam position.

There is no pass fuse box

On this website, you find fuse box diagram and description for Volvo S60 (2002)

Volvo S60 mk1 First Generation 2002 fuse box diagram Auto Genius

http://www.2carpros.com/diagrams/volvo/s60/2004

I have a bad feeling. I own a Volvo SW XC70 and I had to change the timing belt because I didn't want to have to buy a new engine. I changed it at around 150K miles. The belt is a composite and is not a chain (metal), so it can stretch, thus giving you "bad" timing and making it impossible to tune. If you have not checked or changed the belt, try it. It really won't cost that much (depending on where you take it. I went to Volvo. Good luck.
DON'T DRIVE THE CAR UNTIL YOU ARE SURE.

Here is a link to the belt diagram

http://arrc.epnet.com/autoapp/9306MUS/chiltonimages/7000/79224G26L.gif


Hope this helps

Positive feedback ALWAYS welcome :)

There are a few things that need to be done, first the timing belt and waterpump if this engine has one most do, so for this you would need a waterpump timing belt kit with pulleys, next is a complete tune up, spark plugs ,wire if eng uses if not then coil boots, air and fuel filters cabin filter, pcv valve, a fuel system cleaning which is done by machine at a shop called a motor vac service. then check fan belt , flush cooling system, coolant needed.and then the rest of the service is a lot of checking like brake, suspension , exhaust etc,hope this helps.

You should have changed the Timing Belt at 60K niles, by not changing the Timing Belt you are taking a serious gamble on the Belt breaking on you at anytime, leaving you stranded and costing you thousands of dollars in engine repairs. If your car runs fine, No Check Engine Lights, I would just do your regular engine oil changes, flush Radiator, Change Transmission Fluid and Filter, but change the Timing Belt ASAP.

if your only changing your belt you should be ok if you make your own. but if you already removed the belt and forgot to mark it you will need to use timing tools that go into the back of the camshaft behind two little rubber caps.

My apologies for the delayed response. I am going back and answering questions that were never answered.
Click on the following Link. It has all the Diagrams for the Timing Belt you will need.
Before Clicking, let me know if this helped.
Again my sincerest apologies...

http://www.2carpros.com/car_repair_information/year/2004/make/volvo/model/s60/2004_volvo_s60_timing_belt_diagram_marks.htm

As far as the install info, due to the sheer volume and number of steps that would have to be included, you may want to purchase a Haynes Manual or Chilton Manual at an auto parts store for around $20 to $25. The above site also has On-Line Repair Manual you can purchase.