Where is the pcm/ecm on a 1994 mercury grand marques i need to remov one and replace

Asked by Oct 14, 2016 at 10:44 PM about the 1994 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

I need to replace it

3 Answers

26,615

Interior - Firewall - Above driver's left foot - how do you know that you need to replace it - most diagnostics are done by disconnecting the PCM and checking continuity of the component/wiring at the PCM connector.

i found it and took it out i replaced it with the exact year make and model one i got at pull apart and still not starting i don't know what to do i tried to take the pcm to an autozone to have it testes but they know nothing plz help if you can

does it need to be reflashed

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,579 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,880
  • #2
    kbro
    Reputation
    2,180
  • #3
    Js08016
    Reputation
    1,940
View All

Related Models For Sale

Used Ford Crown Victoria
939 listings starting at $1,496
Used Lincoln Town Car
21 Great Deals out of 1,610 listings starting at $2,450
Used Chevrolet Impala
557 Great Deals out of 33,311 listings starting at $1,499
Used Ford F-150
3,268 Great Deals out of 224,293 listings starting at $1,250
Used Ford Explorer
1,175 Great Deals out of 64,182 listings starting at $1,499
Used Chevrolet Tahoe
886 Great Deals out of 39,788 listings starting at $1,990
Used Ford Mustang
445 Great Deals out of 42,042 listings starting at $1,488
Used Honda Accord
925 Great Deals out of 78,229 listings starting at $1,295
Used Cadillac DeVille
1,424 listings starting at $2,695
Used Ford Taurus
220 Great Deals out of 15,241 listings starting at $1,295

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
15 listings starting at $5,835
2010 Mercury Grand Marquis For Sale
3 Great Deals out of 83 listings starting at $3,990
2009 Mercury Grand Marquis For Sale
3 Great Deals out of 82 listings starting at $3,999
2008 Mercury Grand Marquis For Sale
5 Great Deals out of 142 listings starting at $1,000
2007 Mercury Grand Marquis For Sale
5 Great Deals out of 119 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.