91 Town Car

Starter relay, ignition switch, starter cable, alternator, battery terminals.

"gracie17" wrote in news: snipped-for-privacy@localhost.talkaboutautos.com:

Assuming a good starter and starter solenoid (you said it tested good)... AND If the headlights turn on nice and bright and dont dim while key is in start position, then you have a bad connection somewhere between the start relay battery side terminal and the starter OR a bad engine block ground. That usually goes straight from battery neg post to engine

Both are heavy single wire cables. Could also be a bad start relay, itself.

On the off chance it was missed, go under the car to the starter solenoid. Check the ignition wire connector to be sure it is both tight and clean. This connector has to be squeezed to unlock and remove it from the spade connector on the solenoid. They are bad about corroding. The fix is to clean thoroughly and use pliers to crimp it a bit. If it is badly corroded, you may have to replace the connector on the wire. Thes is/was a TSB out on this problem for that vintage.

Good luck Lugnut