Roy <. This ECU pictured took about 30-40 minutes to split, de-solder caps, re-solder caps, clean J3 port and re-assemble. EEC-IV, although somewhere in its life there was a Ford P/N generational change. Once everything is cleaned up, solder away with the replacements.A Q-tip and rubbing alcohol was used here: I'm sure these bad capacitors are what got the car junked. When you have goop on the circuit board, you should clean it up nicely before replacing the cap. I bought computer from a junk yard from a 1990 Lincoln town car 5.0.You can see that it was leaking pretty severely: After you get it out of there, you can see the true mess:.And sometimes when you look a little closer you will see that those caps that looked OK from a distance really had more serious issues….Next, it’s time to solder in a replacement.I had to apply a lot of heat and go really slowly in order to achieve solid results. You’ll have a hard time if you try to use a de-soldering braid. Like always, we recommend that you use a high-quality de-soldering tool such as the Hakko 808 or a Xytronic 988. Next step: de-solder the old capacitors.Next, locate the capacitors that need to be replaced.Įven in this extreme close up shot of the base, it is hard to see anything OBVIOUSLY wrong.Both upper and lower case will need to come off. First step: Take off all the A9L’s clothes.There are three capacitors that typically need replaced in an A9L / Fox Body MAF ECM. If you click them to view the original, you will be able to zoom in for much more detail. Note: all of these pictures are fairly high res. So why do manufacturers use these components if they know they will eventually fail? There really aren’t a lot of good alternatives that have the necessary specifications AND are inexpensive.īottom line: all electronic devices that have power supplies generally have electrolytic capacitors that fail. There are even calculators that can help you estimate how long a given capacitor will last! These components are virtually guaranteed to fail eventually, even under normal use circumstances. A significant chunk of the failures are due to electrolytic capacitor failure.
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