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Grand Marquis starting nightmare

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

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

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#4 of 7 '89 Grand Marquis 5.0 Starting "NIGHTMARE" by walar2007 Aug 09, 2007 (10:56 am)
Is there anybody out there able to share with me how to overcome a cranking, however "NON-STARTING" 5.0, with only 77,620 miles? I've replaced the following: Plugs, Wires, Distributor, Relay to Distributor, Ignition Coil, Battery {twice}. This started two weeks ago. Some days it starts no problem; yesterday, today is a different story . . . .NOTHING. I ran the battery down then began all over again . . . NOTHIN'. I'm at my wits end and need someone to come along side and "PLEASE HELP". Your assistance is well appreciated. Thank You, walar2007. Replies to this message: browney (Aug 14, 2007 6:22 am) beedub (Jan 02, 2008 4:43 pm)
#5 of 7 Re: '89 Grand Marquis 5.0 Starting "NIGHTMARE" [walar2007] by browney Aug 14, 2007 (6:22 am)
Replying to: walar2007 (Aug 09, 2007 10:56 am) I think these older GMs have a ballast resistor in the ignition system. If it does you should try replacing it. Replies to this message: beedub (Jan 02, 2008 4:43 pm)
#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.

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