Car not cranking after on 1995 Lincoln Town Car

I have change heater core on my Town Car 95. Before there was no beep from passenger side and car was starting . After I change heater core. Once car start and after that car is not even cranking. When I turn key the beep start from passenger side and light go off from dash board. I reopen dash board and check all connection every thing look good. But sill car is not get start. I do not why beep coming from passenger side. Please help Thank you.

by in Acra, NY on December 16, 2009
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1 answer
ANSWER by , December 17, 2009
Can you find the source of the beep? I would try that, see if the beeping is related to the starting circuit. Then I would fault trace the no-start problem, this should lead you to where the problem lies.