2003 Ford Escort ZX2 2.0L engine knock and no power.

The picture is for a zetec. Let me know if wrong diagram?

The serpentine drive belt on a Ford Escort ZX2 snakes its way from the crankshaft pulley out to the engine accessory pulleys and the serpentine belt tensioner. The serpentine belt system's design employs only one belt, held taught with the automatic belt tensioner, eliminating the need for the multiple belt system used on earlier model year Escorts. When the belt begins cracking, fraying or losing ribs, it's time to replace it. If you have entry-level auto-repair skill, you can change a belt on a Ford Zx2 in about 45 minutes. http://www.lightdeal.co.uk

Below is the master help link provided to go through belt routing diagram:---Timing belt,drive belt,serpentine belt,accessory belt,fan belt,engine belt routing diagrams for all types of car models?
Click the link below :----http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html
----------This will help.Thanks.

It may have the crank sensor..Look by the harmonic balancer and see if the wires are still connected..Its the pulley at the bottom of the engine

On the front of the engine, the front of the engine is on the passengers side of the engine compartment under the hood, below is a picture of your engines serpentine belt.

serpentine belt no timing belt maybe yes know as a interferece engine but the serp.. belt should be fine just replace

2.0 litre engine?? thought they were only built with a 1.6 zetec engine

purchase repair manual from local parts store and serpentine belt removal tool fairly cheap and easy to use.

2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
Fig. 11: Drive belt routing-2.0L SOHC engine with A/C Fig. 12: Drive belt routing-2.0L SOHC engine without A/C Fig. 13: Drive belt routing-2.0L DOHC engine

2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
Fig. 11: Drive belt routing-2.0L SOHC engine with A/C Fig. 12: Drive belt routing-2.0L SOHC engine without A/C Fig. 13: Drive belt routing-2.0L DOHC engine