My 1997 mercury grand marquis has a brand new battery and starter and still won't start unless i go under car and jump start starter with a switch...why??

My 1997 mercury grand marquis has a brand new battery and starter and still won't start unless i go under car and jump start starter with a switch...why?? 3 answers

How do I start my 2000 mercury grand Marquis after changing the starter and alternator? 3 answers

I recently had a alternator catch fire from the top by wires.. Changed wires that were damaged,alternator,and starter figuring that fire blew it out but still it won't start....also I was told i...

why does my dash lights flicker on and off when trying to jump my car off with a battery charger? 1 answer

My battery has low cold cranking amps and it has been down in the 20's for the last three nights, it cranked yesterday after sitting through two cold nights, but had to wait until it warmed up outsi...

I HAVE A 1999 MERCURY GRAND MARQUIS IT IS BLOWING AC BUT WHEN I SPEED UP IT BROG DOWN AND BARELY BLOW IS IT ONE OF MY VACCUM 3 answers

I NEED TO FIND OUT WHERE ARE MY AC VACCUM LOCATED AT AND COULD I LOOK AT A DIOGRAM OF IT 1999 MERCURY GRAND MARQUIS

I have a 1997 grand marquis when i am driving it and i floor it it does nothing when i come to a stop and start to go again it is slow at taking off 4 answers

So my cousin took off the mass air flow sensor and it runs perfect should i buy a new air sensor or can i drive with it disconnected