1995 chevy lumina serpentine belt

Usually it takes a special tool or a crowbar to take the load off the tensioner to remove the old belt and install the new one. Make sure you have a diagram of the belt routing before you take the old belt off.
There should be videos on Youtube for GM engines.

run fault codes and check for HO2S and O2 sensors problems . Check fuel pressure and injectors for operation.

It sounds like a bad fuel pump.

Remove the old belt
Measure it
Convert to metric
Go to Auto Parts Store-buy correct belt

One -- it's a serpentine belt.

Charlie

http://www.mvreader.com/multiview/dayco/zoom.php?zoom_item=C0001J&l=&catalog=auto&category=2

The web link should take you to a diagram of the serpentine belt. Hope it helps!

usually, this is an ignition switch problem.

Does it have the anti-theft system, if so check for the two wires that go to the ignition switch and make sure they are not broken. If they are they will need to be fixed in order to get it too run again

See the figures at the bottom of the page at this link. Figure 14 is for the 2.8L and 3.1L engines, which is probably what you have. Figure 15 is for the 3.4L engines.

I found on my 92 lumina 3.1 the easiest way to change the belt is to have two people handy (you and a helper) push the belt tensioner (which is more in the middle of the belt system, its the only thing that has give when pressure is applied) down (which will loosen the belt) have your partner slip the belt off the altenator (which should be on the very top of the belt system on the passenger side) and just pay attention to the way the belt is routed as you remove it, put the new one on (routed correctly) push the tensioner again have your partner slip it back over the altenator....and you have a new belt on with no tools :)

just pay good attention to the routing of the belt, and i also think there is a black cover over the belt which needs to be removed before the old belt can be taken off (if you dont see it at first you will find it) it has 3 bolts i think and also a diagram of the routing....

TIP: the tensioner will take some muscle to move down, and yes the belt is running over it....