Have a 2007 Mercury Grand Marquis
battery light will randomly come on and
go offperiod recently replaced the
alternator should I replace the battery?
Also check engine light came on code
came back and catalytic converter how
do I know which one?
So yes, you should have the battery checked along with the charging system, just to be sure that is working properly, just takes a minute to do, and the code for the catalytic converter is something totally different. What was the code?
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale
Used Cars For Sale