Grand Marquis starting nightmare

7 messages, Last post on Apr 08, 2008 at 10:10 AM

What is this discussion about? Mercury Grand Marquis, Engine, Sedan

#6 of 7 Re: '89 Grand Marquis 5.0 Starting "NIGHTMARE" [browney] by beedub Jan 02, 2008 (4:43 pm)
Replying to: browney (Aug 14, 2007 6:22 am) i agree with above and maybe it could be the fuel delivery to the car, fuel shutoff buttin could be stuck,hole in the fuel line,fuel line rusted
#7 of 7 Re: Grand Marquis starting nightmare [marquisman] by jandracchi Apr 08, 2008 (10:10 am)
Replying to: marquisman (Mar 10, 2007 7:15 am) Same year same problem - solved the problem by using lower octane fuel - fixed it immediately - I could go into octane as a measure of combustibility and why the higher octane struggles in the lower temperature but I am not qualified. Try it - I believe it will work.