first you need to be sure you know how the old one is routed, either by the diagram near the radiator or by making your own. there is an "inside" and an "outside" to the belt. next locate the tensioner pulley. its usually attached to the alternator. its the only pulley that isn't attached to/drive anything. put a wrench on the tensioner and slack the belt. remove the old one. compare it to the new one to be certain its the correct replacement. rout the new belt around all the pulleys making sure to insert the belt onto the tensioner last because you will have to slack the tensioner to get the belt on. pay attention to the way the belt "faces" each pulley.
how do you change the knock sensor in a 2003 Chevy silverado 5.3
How do you change brakes on 2003 Silverado Pick Up?
To change the return filter on a 2003 Chevy Silverado is easy. Simply open the hood of your car and gently remove the filter and replace with new filter. that it!
Change motor mounts and install...
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a 2003 Chevy silverado taillight bulb uses a 3157
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Under hood is a diagram
can i change 1 fuel injector on 4.3 6 cylinder silverado 2003.
YES
No, Chevy changed the wiring harness in 2003. and the way it is mounted, it can be made to work though.