'95 F150 Engine Control Module Problem

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Jul 25, 2015 | 05:17 PM

Jeff Peelman

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'95 F150 Engine Control Module Problem

Thanks to everyone on this blog that has written in to share their successful repairs. I too had the fuel pump not shutting off problem with our 1995 F150 4.9L straight 6 cyl. I put new plugs in, a new battery and checked for spark and fuel, but I couldn’t get this started.
So, I pulled the existing (20 year old) engine control module out of the rather conspicuous narrow sheet metal pocket below and to the right of the master cylinder. The outer case had that powdery white oxidation on the aluminum housing and the male plug had small water droplets around the pins.

A call to Cardone to verify the correct part number and then over to Rock Auto, and I had the part in 2 days. Before sliding the new module back into its pocket, I plugged the cable plug into the unit and gently placed it so that it didn’t move around. I turn the ignition to on, but not start, and listened to the fuel pump respond and then shut off. The way it is designed to! I then attempted to start and the engine fired right up.
My wife & I are both happy. This is her daily driver.

Jul 25, 2015 | 05:38 PM

rla2005

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I am happy to read you had good results with a Cardone rebuilt PCM. Many folks have not been so lucky on several forums. I sincerely hope they have improved their QC and your truck continues to function like new!

Jul 26, 2015 | 12:52 AM

Willz74

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Ever heard of a high altitude ECM my truck got better mileage in Wyoming and I got it in Montana both are at about 6000 feet I live at 2500 now supposedly sea level trucks don't run right at that elevation (too lean) but the only truck with the supposed issue (Louisiana man moved there) didn't run at all because of something else the point is have you ever heard of it

Jul 26, 2015 | 11:04 AM

Jeff Peelman

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I wasn't aware that Cardone was having QC problems. I missed that on this forum. RockAuto customers had not commented on any issues that I recall seeing. But, perhaps they are through that rough patch now. In my past, I've worked for automotive suppliers that have had poor quality problems. With the right Team, things can be turned around to the positive.

Jul 26, 2015 | 11:09 AM

Jeff Peelman

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Willz74 -- I'm not at all sure if there are ECMs made for high altitude. But, I'm thinking that the software is likely tuned for high altitude. The dealer or a mechanic that has the right equipment probably can tweak that software code. See this on amazon

Amazon.com: Cardone 78-4442 Remanufactured Ford Engine Control Module (ECM) / Computer: Automotive

Jul 26, 2015 | 11:17 AM

rla2005

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From: Kentucky

Quote:

Originally Posted by Willz74

Yes there are specific PCMs for vehicles operating at high altitudes. Case in point: 1993 F150 w/5.0L engine:

PCM Part Numbers

F2TF-AKB; with High Altitude Emissions

F2TF-AJB; with California Emissions

F2TF-AHB; with Federal Emissions

My take on that is a vehicle with Federal or Cali emissions will work at high altitude locations but may not operate efficiently.

Jul 27, 2015 | 01:59 AM

Willz74

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I was told the truck from sea level was unusable more or less when it was cold because it leaned out the fuel I'll write those numbers down but since the tires are eaten on the front the frame is cracked and the piece of jap tranny needs replaced again I'm not too worried about its gas mileage