so ihave an 89 bonneville, it has a good battery.......heres my problem

it will crank, but really slowly and will not start, then sometimes it will just click, so tell me if i am right, this is the starter right???

if it is, will a new solenoid fix it? or will i need a new starter

Have you tried giving it a jump start, that sounds like a low battery to me but I could be wrong.

same here, sounds like a bad battery. have you had it tested somewhere with a load tester? you could use a volt meter and it may show it has 12 or more volts, but it may give out under a load and not produce enough amps to crank it over. take it to a walmart with a tle, or an autozone or orielies and they may test it for you. either that or the contacts in the solenoid are gone and barely making contact. but most likely the battery.

Man do I miss my '91 Bonneville winter rat. That car was a freakin' boat, never gave me any problems and rode like a damn dream. Best $400.00 I ever spent.

PS: my vote is battery, too. Disconnect it from the car and test it with an Ohm Meter to see if it's at or around 12V.

To keep this short if the battery is fully charged and you try to start the car,and just a click or hesistation it would point to the starter being a problem.The car should show at least 12.0-12.5 volts not running average.I would clean your battery connections and grounds and starter wiring connections.You can simply take the car to auto zone or advance have them do the test as already stated.Or take the starter off and get them to bench test it.Unless alternator is not charging properly or the battery is slowly dieing due to age the starter would be something to just replace the whole unit.I would not just do the solenoid unless the starter was not too old.This is not too short sorry but,if you do not have multimeter take it to the above stores and have them load test the system.I would buy a new starter if it is the issue over just the solenoid it just is not worth the headache bc you still have to pull the starter and remove the part and if the starter itself dies your wasting your time again.

Your alternator has nothing to do with starting the car. It is very possible it is the starter as well. You could be drawing too many amps.