All Computers now come with a FREE LIFETIME WARRANTY!

Get a VIN matched, guaranteed, plug-and-play 2004 Mercury Grand Marquis computer for $600 LESS than the Mercury dealership charges.
Your computer will be pre-programmed to your VIN and tested for quality & compatibility. It comes with a lifetime guarantee and is so simple to install a 7 year old can do it (watch video).

FREE LIFETIME WARRANTY

Highest Rated Store

2004 Mercury Grand Marquis 4.6L PCM ECM Engine Computer

2004 Mercury Grand Marquis 4.6L PCM ECM Engine Computer

2004 Mercury Grand Marquis 4.6L PCM ECM Engine Computer

{TXT_PRODNOTE} This Module is Plug-and-Play:
Just Put it in and Drive, no need to visit the dealer!

 

Over 100,000 Customers Served
4.9 STAR RATING.
FREE Lifetime Warranty
FREE WITH EACH COMPUTER
60 day IRON-CLAD Guarantee
ORDER RISK FREE
VIN Matched & Tested
WE ARE THE ONLY COMPANY THAT RUNS EVERY COMPUTER THROUGH A COMPUTER AIDED VEHICLE SIMULATOR TO TEST FOR QUALITY AND COMPATIBILITY WITH YOUR CAR & VIN.


Sale: $199.95 $259.95
YOU SAVE $60.00



HOW DOES THIS WORK?
Place your order - Order and we’ll contact you for your car’s VIN number.
13 Point Quality Check - Using your VIN, we’ll program and fully test your new computer. Our proprietary lab equipment emulates your car’s engine to guarantee everything will work perfectly out of the box.
Send us your old computer - Along with your new computer, you will receive a self-addressed return envelope. Place your old computer in here and mail it. Your lifetime warranty will be activated when we receive it.


Your VIN: OR Part #:
Check Compatibility
Available Quantity:
Over 100,000 customers served!
Over 100,000 customers served! 4.9 star rating!

We are the ONLY company that runs every computer through a computer aided vehicle simulator to test for quality and compatibility with your car & VIN.

VIN Matched & Tested

Each module is pre-programmed to your VIN and tested for quality & compatibility.

FREE Lifetime Warranty

All modules come with a FREE LIFETIME WARRANTY!

Is this the right part? This is a powertrain control module(also called an ECM or PCM) for a 2004 Mercury Grand Marquis 4.6L PCM ECM Engine Comp. We'll ask for your VIN after you order to guarantee it works with YOUR Mercury upon arrival. More questions? Call us
@ 888-875-2958!

Is this the right part?

This is a powertrain control module (also called an ECM or PCM) for a Grand Marquis. We'll ask for your VIN after you order to guarantee it works with YOUR Mercury upon arrival.

More questions? Call us
@ 888-875-2958!

FREE Lifetime Warranty

All modules come with a FREE LIFETIME WARRANTY!
VIN Matched & Tested

Each module is pre-programmed to your VIN and tested for quality & compatibility.
Iron-Clad Guarantee

If it doesn't work, send it back for a refund.

PRODUCT HIGHLIGHTS

  • This is a Mercury OEM computer for a Grand Marquis 4.6L .
  • LIFETIME WARRANTY w/ Core Exchange.
  • This listing covers 4.6L engine sizes and all transmissions,and emissions types.
  • We use your VIN to make sure you get the exact part # you need.
  • Fully rebuilt, programmed, and tested for quality.
  • Fully programmed to your exact VIN. You'll provide your VIN # after purchase.
  • All of the latest software updates from Mercury will be installed.
  • We VIN Match Part# to Guarantee correct unit. (No Part# Required).
  • Need a different model year? We have Mercury Grand Marquis PCMs for model years 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009.

REQUIRED INFO

After you buy this computer, we'll contact you for the following info needed for programming:
  • VIN# (17 characters - can be found on dashboard or on registration card)

ADDITIONAL INFORMATION

SKU200P272
ConditionRefurbished
MakeMercury
ModelGrand Marquis
Engine Size4.6L
Regular Price$259.95
Sale Price$199.95
StockIN STOCK

Not sure this will work? Order RISK-FREE!
We know buying anything online is a risk. We want you to try one of our computers. If it doesn't work, send it back for a refund. If it does, send back your old computer to activate your lifetime warranty.
We stand behind our product with a money back guarantee. This our 60 day IRON-CLAD guarantee to you.

HOW DOES IT WORK?

01
Place your order
Order and we'll contact you for the VIN # and any other needed information.
02
Quality check
We'll fully program and test your new computer to make sure it is in full working order. After that, it will be shipped to your door.
03
Send us your old computer
In the box will be a self-addressed return envelope. Place your old computer in here and mail it. Your warranty will be activated when we receive it.

Not sure this will work? Order RISK-FREE!

BUYER BEWARE! NOT ALL COMPUTER SELLERS ARE EQUAL.

CarComputerExchange fully rebuilds and tests ALL computers. We are the ONLY seller that runs each computer through a computer aided vehicle simulator that tests every circuit in the module. Other companies run limited tests.
Most companies run limited tests. Some online stores simply repaint old units and sell without testing. Don't fall for the CHEAPER option.
Our testing & rebuilding process starts with a deep visual evaluation of the circuit board and all the electronic components. From water or acid corrosion, to fire or burn damage, we pay attention to every detail. We also scan the ECU memory or CPU to make sure that it is working properly.
We then test the ECU's with our proprietary electronic lab equipment on our bench, which emulates the car's engine to ensure accuracy in every diagnosis.
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We are the ONLY company that runs every computer through a computer aided vehicle simulator to test for quality and compatibility with your car & VIN.

CarComputerExchange fully tests ALL computers in our facility in Cary NC. Other companies run very few tests or just paint used units to make them look new.
cary.png

OVER 100,000 Customers Served

Every unit is programmed & tested in our facility in Cary NC

CarComputerExchange fully rebuilds and tests ALL computers. We are the ONLY seller that runs each computer through a computer aided vehicle simulator that tests every circuit in the module. Other companies run limited tests.

Most companies run limited tests. Some online stores simply repaint old units and sell without testing. Don't fall for the CHEAPER option.

computerrepair

Our testing & rebuilding process starts with a deep visual evaluation of the circuit board and all the electronic components. From water or acid corrosion, to fire or burn damage, we pay attention to every detail. We also scan the ECU memory or CPU to make sure that it is working properly.

ECU-visual

We then test the ECU's with our proprietary electronic lab equipment on our bench, which emulates the car's engine to ensure accuracy in every diagnosis.

Frequently asked questions

How does the free warranty work?

We are confident in the quality of our repairs. When we repair the computer for your 2004 Mercury Grand Marquis we ship it back to you backed by a free lifetime warranty.

Does a Mercury dealership need to install it?

No! All of the Mercury computers we repair are plug and play. They are updated with the latest factory software and programmed with your Mercury Grand Marquis VIN.

Will I be able to return my computer in the event it doesn't work?

You will be able to return your part within 60 days if it is returned undamaged in its original condition. You will be given the option of getting a refund or exchanging for another computer for your 2004 Mercury Grand Marquis.

How quickly will you ship my computer?

Once we receive your order and all of the required vehicle information, your order will ship within 3-5 business days. We ship everything via USPS Priority Mail or FedEx with transit times varying depending on your location.

What if I don't return my old computer?

It is important you return the old computer for your Mercury Grand Marquis. In the event you don't return your old computer, you will have voided your warranty and you may be subject to a core charge.

How can I pay?

We have a variety of ways you can pay. You can pay With Visa, Mastercard, American Express, and Discover. You may also use PayPal, Western Union, or send us a check or money order to the address below:

Car Computer Exchange
8208 Brownleigh Drive
Suite 100
Raleigh, NC 27617