Hard first start
Tuned
Joined: Jul 2002
Posts: 479
Likes: 12
From: Louisiana
47uf 16 V P/N 667-ECE-A1CKA470I https://www.mouser.com/ProductDetail...FOecG0k2NZA%3D
10uf 63V P/N 667-ECA-1JM100B https://www.mouser.com/ProductDetail...iaPc7fSw%3D%3D
The shipping will cost more than the caps but its cheaper than a remanufactured unit.
10uf 63V P/N 667-ECA-1JM100B https://www.mouser.com/ProductDetail...iaPc7fSw%3D%3D
The shipping will cost more than the caps but its cheaper than a remanufactured unit.
Last edited by byronbgs; Jun 11, 2019 at 10:56 AM. Reason: spelling
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Freshman User
Joined: Jun 2019
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Well I got the capacitors Thursday night. Soldered them in and worked perfectly. Other than I had trouble getting one of the legs to take solder. But after fighting it for several minutes. I didn't want to overheat the capacitor. I got it pretty good. Drove it from Friday until yesterday with no problems. Then this morning when I tried to start it. Same issue. I think I'm going to buy a new ecm. But it was fun trying to fix the old one.
Senior User
Joined: Jun 2013
Posts: 276
Likes: 1
Well I got the capacitors Thursday night. Soldered them in and worked perfectly. Other than I had trouble getting one of the legs to take solder. But after fighting it for several minutes. I didn't want to overheat the capacitor. I got it pretty good. Drove it from Friday until yesterday with no problems. Then this morning when I tried to start it. Same issue. I think I'm going to buy a new ecm. But it was fun trying to fix the old one.
Just throwing this out there. Hate to see you swap parts, when it could be other issues.
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Freshman User
Joined: Jun 2019
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Now I'm dumb as a rock on this stuff. But sounds like to me, you may have issues with wires to and from the ECM? There has to be a reason there blowing? And Would a new ECM not do the same thing?
Just throwing this out there. Hate to see you swap parts, when it could be other issues.
Just throwing this out there. Hate to see you swap parts, when it could be other issues.
Lead Driver
Joined: Jul 2017
Posts: 9,606
Likes: 1,175
From: San Jose, CA
While it "could" be something with the wiring, this is a long term well known issue with the Ford computers since they did more than cursory things in the early '80's. By the '86 models, as the ECU's aged the capacitors started failing.
The fixes are well documented, and they make a big deal stressing the importance of buying certain brands of known high quality parts to replace the old ones. Sorry I don't remember the brands and model numbers, but the info is out there floating around. Luckily I've never had to do it (yet) but I guess it's like the TFI modules. Not every one failed (never had that lovely experience either) but enough have that it's a known issue over time.
Generally speaking, the original Ford caps were very good quality and lasted many years. But most of the readily available units fail quickly.
I wish I knew which direction to look for the highly recommended numbers, and when you guys were talking about Mouser, that name sounded familiar. But I just don't have the details memorized.
Good luck with the new computer. Hopefully it's not a wiring issue, but that would certainly be worth researching before attaching your expensive new ECU/ECM!
Maybe a crossed ground, bent contact, frayed wire, all of the above kind of thing?
Paul
The fixes are well documented, and they make a big deal stressing the importance of buying certain brands of known high quality parts to replace the old ones. Sorry I don't remember the brands and model numbers, but the info is out there floating around. Luckily I've never had to do it (yet) but I guess it's like the TFI modules. Not every one failed (never had that lovely experience either) but enough have that it's a known issue over time.
Generally speaking, the original Ford caps were very good quality and lasted many years. But most of the readily available units fail quickly.
I wish I knew which direction to look for the highly recommended numbers, and when you guys were talking about Mouser, that name sounded familiar. But I just don't have the details memorized.
Good luck with the new computer. Hopefully it's not a wiring issue, but that would certainly be worth researching before attaching your expensive new ECU/ECM!
Maybe a crossed ground, bent contact, frayed wire, all of the above kind of thing?
Paul
Thread Starter
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Freshman User
Joined: Jun 2019
Posts: 40
Likes: 0
While it "could" be something with the wiring, this is a long term well known issue with the Ford computers since they did more than cursory things in the early '80's. By the '86 models, as the ECU's aged the capacitors started failing.
The fixes are well documented, and they make a big deal stressing the importance of buying certain brands of known high quality parts to replace the old ones. Sorry I don't remember the brands and model numbers, but the info is out there floating around. Luckily I've never had to do it (yet) but I guess it's like the TFI modules. Not every one failed (never had that lovely experience either) but enough have that it's a known issue over time.
Generally speaking, the original Ford caps were very good quality and lasted many years. But most of the readily available units fail quickly.
I wish I knew which direction to look for the highly recommended numbers, and when you guys were talking about Mouser, that name sounded familiar. But I just don't have the details memorized.
Good luck with the new computer. Hopefully it's not a wiring issue, but that would certainly be worth researching before attaching your expensive new ECU/ECM!
Maybe a crossed ground, bent contact, frayed wire, all of the above kind of thing?
Paul
The fixes are well documented, and they make a big deal stressing the importance of buying certain brands of known high quality parts to replace the old ones. Sorry I don't remember the brands and model numbers, but the info is out there floating around. Luckily I've never had to do it (yet) but I guess it's like the TFI modules. Not every one failed (never had that lovely experience either) but enough have that it's a known issue over time.
Generally speaking, the original Ford caps were very good quality and lasted many years. But most of the readily available units fail quickly.
I wish I knew which direction to look for the highly recommended numbers, and when you guys were talking about Mouser, that name sounded familiar. But I just don't have the details memorized.
Good luck with the new computer. Hopefully it's not a wiring issue, but that would certainly be worth researching before attaching your expensive new ECU/ECM!
Maybe a crossed ground, bent contact, frayed wire, all of the above kind of thing?
Paul
Elder User
Joined: Jul 2015
Posts: 730
Likes: 0
Have same issue with my 90 4.9, every cold start takes about 4-5 starts, despite proper fuel PSI both key on engine off and on. My FPR was bad, and replaced it, but made zero difference, same with fuel filter, etc. When engine has been started, it's good to go instantly until it sits and gets fully cooled off again, and same issue. It's very reliable otherwise. I've put techron in, new plugs, wires, etc. I've read about it a lot but never found a real resolution yet.
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Freshman User
Joined: Jun 2019
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Have same issue with my 90 4.9, every cold start takes about 4-5 starts, despite proper fuel PSI both key on engine off and on. My FPR was bad, and replaced it, but made zero difference, same with fuel filter, etc. When engine has been started, it's good to go instantly until it sits and gets fully cooled off again, and same issue. It's very reliable otherwise. I've put techron in, new plugs, wires, etc. I've read about it a lot but never found a real resolution yet.
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Joined: Jun 2019
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Well I bought a new ecm. Advanced auto had one on the shelf which I found odd. I went to buy it and it had greasy fingerprints on it and other signs of not being a reman. It looked like a well used core. I brought it to the sales persons attention. He said they usually keep one on the shelf. After a few minutes of him convincing me it was ok,I bought it. I installed it in my truck and it started. Didn't run well. The transmission was acting weird and had absolutely no power. I parked it for a few days and went to start it and it won't start. So now I'm waiting for yet another ecm.
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