My 1997 isuzu rodeo wont start. i checked the battery and it has a good charge so its not that and when i turn the key the dash lights up and everything but i dont even hear a click. when i turn the key counter clock wise there is a barley audible shudder. would that be the starter?

Make sure battery has a full charge and battery connections all good, on both ends, not just at the battery. I looked at info for 4 cylinder engine. You can see the two fuses, not only check the fuses, use a test light and check voltage at fuse circuit. The main fuse is hot all the time. The starter fuse goes hot with key in start position, so you need a helper to turn the key while you check for voltage at the fuse. At the starter motor, two voltage circuits, one comes from the battery, hot all the time. The other circuit goes hot with key in the start position and is wired through clutch switch and starter relay. The starter motor grounds through the engine block. If good voltage and ground circuits at the starter motor and no action, have to check starter motor and make sure the engine isn't seized. Any testing at starter motor, make sure tranny is in park or neutral and parking brake is set.