How to Replace Driver Side Catalytic Converter 2003-2011 Mercury Grand Marquis

Shop for New Auto Parts at 1AAuto.com 1aau.to/c/93/at...
This video shows you how to install a catalytic converter on your 2003-2011 Mercury Grand Marquis. Catalytic converters are an important part of a clean emissions system on your car or truck. Over time, they can wear out, break down, or become clogged, causing poor performance, and extra pollution.
This repair was done on a 2009 Mercury Grand Marquis LS 4.6L Sedan 4-Door RWD Automatic and the process should be similar on the following vehicles:
2003 Mercury Grand Marquis
2004 Mercury Grand Marquis
2005 Mercury Grand Marquis
2006 Mercury Grand Marquis
2007 Mercury Grand Marquis
2008 Mercury Grand Marquis
2009 Mercury Grand Marquis
2010 Mercury Grand Marquis
2011 Mercury Grand Marquis
Tools you will need:
• Pry Bar 1aau.to/oLb/1AX...
• 14mm Socket 1aau.to/obaG/1A...
• 15mm Socket 1aau.to/obaG/1A...
• O2 Sensor Socket
• 3/8 Inch Drive Ratchet 1aau.to/obaG/1A...
• Socket Driver
• Socket Extensions 1aau.to/obaG/1A...
• Swivel
• Torque Wrench 1aau.to/oare/1A...
• Gloves 1aau.to/oGq/1AX...
• Safety Glasses
• Sandpaper
• Chisel 1aau.to/oj3/1AX...
• Floor Jack 1aau.to/oTu/1AX...
• Hammer
• Jack Stands 1aau.to/oMV/1AX...
• Wheel Chocks
Subscribe: / @trq
Check out our playlist:
Mercury Grand Marquis 5th Generation 2003-2011: • Mercury Grand Marquis ...
⚠ DISCLAIMER:
While TRQ strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. TRQ is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[@TRQ]

√ Watch the Video √ Buy The Part at 1A Auto 1aau.to/m/Shop-TRQ-Parts √ Do it Yourself √ Save Money

[@abramlopez8471]

When a Marquis catalytic converter goes bad, does it make a rattling noise when pressing on the gas? I have a Grand Marquis, and I think it's my catalytic converter, just not 100% sure.

[@theteacher7100]

"Naw you don't need no cdl for this" Now this setup you gone need a cdl" lol you da truth mane

[@garyzink1046]

Is this a two-piece Cadillac converter? I noticed two pieces that look like an exhaust muffler, so is that considered a two piece just question

[@8BBB88.]

Are the studs removable and replaceable? Or can I knock them out and use regular nuts and bolts that will fit? My studs rusted away and don't thread

[@chrisc2682]

How do you know when catalytic converter goes bad please TRQ GIVE ME THE ANSWER ❤

[@coreys121]

no gasket at the header?

[@al-mubdizahir8704]

what about year 2000 ? still the same?

[@TRQ]

+@al-mubdizahir8704 This procedure might be different for your application. We do not currently have a how-to video for this particular year, make and model. Thank you for asking! 1aau.to/m/Shop-TRQ

[@chrisc2682]

Another thing there is no check engine light on my the dashboard of my 08 grand Marquis ls ❤

[@explicitjuju]

Will this cover the mercury montego 2006