Where is the computer located in a 1998 Ford Explorer XLT?

Tiny
BETTY3838
  • MEMBER
  • 1998 FORD EXPLORER
I want to replace it.
Wednesday, February 29th, 2012 AT 3:02 PM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

The engine control module is located under the hood on the passengers side by the firewall. Here is a diagrams (Below) so you can see what I am talking about.

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Monday, February 12th, 2018 AT 1:55 PM
Tiny
DPADDOCK
  • MEMBER
  • 2 POSTS
  • 1998 FORD EXPLORER
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 230,000 MILES
Brakes problem
1998 Ford Explorer 6 cyl All Wheel Drive Automatic 230000 miles

Where is the ECM located on my vehicle?
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Monday, February 12th, 2018 AT 1:55 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, my info appears to show it, under the hood on the firewall, a little off center toward the passenger side?
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Monday, February 12th, 2018 AT 1:55 PM (Merged)
Tiny
DPADDOCK
  • MEMBER
  • 2 POSTS
That's the PCM.
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Monday, February 12th, 2018 AT 1:55 PM (Merged)
Tiny
NITRAMMARTIN
  • MEMBER
  • 1 POST
  • 1998 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 185,000 MILES
I need to try plug/unplug the pcm cable for possible corrosion issue causing intermittent. Where do I find that plug?
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Monday, February 12th, 2018 AT 1:56 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
At the pcm module youdo take it off it will have a clamp that can either be bolted or a movable clamp. Put some dielectric grease on the pins.
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Monday, February 12th, 2018 AT 1:56 PM (Merged)
Tiny
ENOCHAHORNE
  • MEMBER
  • 8 POSTS
  • 1998 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 162,000 MILES
Electrical problem
1998 Ford Explorer 6 cyl Four Wheel Drive Automatic 162000 miles

would like to know what the pcm is dont think im getting power to my injectors. And where is it located?And how much do you think one will cost?
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Monday, February 12th, 2018 AT 1:56 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Powertrain control module (PCM) is commonly referred to as the vehicle's "brain". It sends important signals to components of the vehicle in order for the engine to fire up and run properly. It is mounted through the firewall and is most likely going to cost approx. $500 to purchase and have replaced
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Monday, February 12th, 2018 AT 1:56 PM (Merged)

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