2003 - 2011 Mercury Grand Marquis LS How to replace spark plug & coil on 8th cylinder
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2003 - 2011 Mercury Grand Marquis LS How to replace spark plug & coil on 8th cylinder.
Mercury Grand Marquis cylinder misfiring and how to fix the problem.
For 2003, the Grand Marquis saw an extensive styling update, and the Ford Panther chassis was redesigned for the first time since its introduction for 1979. During the 2000s, Mercury would introduce two additional full-size sedans: the 2003-2004 Mercury Marauder and the 2005-2007 Mercury Montego (rebranded the 2008-2009 Mercury Sable). In addition, the Grand Marquis largely replaced the Ford Crown Victoria in the retail market since the CV was removed from retail sale for the 2008 model year. This was reflected in the fourth generation Grand Marquis' styling shifting over to the more generic look of the third-generation Crown Victoria, combining elements of both vehicles into one model that would serve both customer bases.
In 2010, the Grand Marquis marked 35 years of production, overtaking the Cougar as the longest-produced nameplate sold by the Mercury brand. In September 2010, after a short production run, the final versions for retail sale were produced. Slated to end production in December 2010, the production of fleet models was extended due to a parts shortage at the St. Thomas, Ontario factory. On January 4, 2011, the last Grand Marquis was produced in St. Thomas; it was the last Mercury produced by Ford.
While styling changes to the 2003 Grand Marquis were evolutionary, the changes to the Panther platform were far more extensive. To improve chassis rigidity, an all-new frame was introduced with fully boxed and hydroformed frame rails. In an effort to improve handling, the front and rear suspension were redesigned along with the brakes. A quiet EBD brake booster with a mechanical panic assist system was added. The new suspension changes required changing wheel designs to those with a high positive offset. Rack and pinion steering replaced the old recirculating ball system in an effort to increase steering precision and reduce costs. In standard versions of the Grand Marquis, the rear-axle ratio was 2.73:1; in LSE and versions with the handling suspension, a 3.27:1 rear-axle ratio was used. The handling package was standard equipment on LS-trim export models.
For 2008, the Handling and Performance Package, as well as the 5-passenger front bucket-seat option, were both discontinued; both were similar to the Crown Victoria's LX Premium Sport and Handling Package. These were the only post-1992 Grand Marquis variants produced for North America to be equipped with dual exhaust.
For the 2003 model year, the Grand Marquis retained the version of the Modular V8 introduced in 2001. Single-exhaust versions produced 220 hp, while the dual-exhaust version raised output to 235 hp. During the redesign, a number of changes were made to the engine. The oil pan was enlarged 20% to six quarts and an engine knock sensor was made standard. Other changes included an intake manifold with an aluminum water crossover and an electronic returnless fuel system. The new engine was distinguished by a redesigned engine cover, featuring a chrome "V8" emblem; the oil filler cap was moved to the passenger-side valve cover and the power steering fluid reservoir was moved off of the engine block onto the radiator shroud.
For 2006, revisions to engine tuning added 4 hp to both versions of the Modular V8, for a total of 224 and 239 hp, respectively. In 2007, the engine was given flex-fuel capability (E85). After the 2007 model year, the 239 hp version of the Grand Marquis was sold exclusively for GCC export.
All versions of the Grand Marquis were sold with variants of the AOD 4-speed overdrive automatic transmission. From 2003 to 2005, the 4R70W was used. In 2006, it was replaced by the 4R75E shared with the Ford truck lineup.
Thanks for making this video and sharing it. You were awesome and no nonsense. Just right to the repair and showed great video of the Key spots needed to access, remove, and install. I subbed and rang the bell. :~)
I'm so glad you liked the video.
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Also, You can join the community channel also by clicking on the join box so we can chat whenever you have a problem so I can walk you through it. Plus you'll get a bunch of PERKS!!!!
I'd appreciate it!!!!!
Thanks for watching 👀 🙂 🙏
I'll see you Cody 😬
Did the leaves come with the car or did you install them yourself? Don't you people ever wash your engines? Looks ghetto.
It real like that over here
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I have 2006 grand marquis will loss or power pass 50 rpm be a ignition coil I’ve had replace some and it shakes too
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@@AxtuoAx do you think it’s that ? Cuz I replaced one before ?
Put it to the test
@@AxtuoAx it did solve the issue it was that problem thank you !
There you go!!!
Good job!!!
Super thanks!!!!
Hello, I have a 2003 Ford Marquis. The important spare parts have been replaced with petrol, but until now the exchange rate has increased. What is the reason?
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