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Yes you're being paranoid and frankly I trust the OEM electronics more than any replacement(made in PRC) crap you can buy at a part store. The distributor in your truck only has a PIP module inside and these rarely die, the ignition module is a more common fault and it is seperately mounted on the fender on your truck, having a spare one of these isn't a bad idea.
I would say it depends on how many miles the truck has on it. My pip sensor failed at 158,000 miles,I wasn't too upset then because it was still the stock part. So I put in original motorcraft parts,even replaced the TFI module just to be safe,motorcraft part there also. Now two years later,my truck again left me stranded last week.I have no spark,I have narrowed it to the PIP sensor again or TFI module(hope it is the module,I have the old one to use to test). As soon as it stops snowing I will do some more troubleshooting,but this was the truck's second strike and I am pissed off right now,one more time and I will be leaving the ford truck world,my truck has been towed twice in 2 years,more than ANY truck i have owned in 20 years!!
Can't blame you being ticked off since you even used the OEM parts. I usually buy a name brand at Napa for my vehicle electrical parts and none have ever failed. I always have old JY modules, MAP, sensors, relays, and sensors in the bed tool box for testing or getting me home.
My current Ford has behaved well only needing a Map sensor and normal tune up parts so far in 218k miles. My alternator (95 amp 3G) is starting to shut off intermittently and I'll probably get a replacement from Napa or get one from the JY. I thought about upgrading to a 130 amp but the 95 has never had a problem keeping up even when hauling trailers.
regards
rikard
I don't think there's anything wrong with carrying spare parts. It never hurts to keep a few basic things on hand, just in case. A whole distributor assembly... well, yeah, I'd say that's a bit much. But if this what you want to do, its your money, your truck. There's no harm in being prepared.
yes,the dist has to come out for both fixes,and has to be disassembled to replace the PIP sensor. It is more expensive to replace the dist obviously,but it is quicker and less involved.
Getting a rebuilt distributor doesn't always mean that it will have a new pickup inside. If that part worked when the old one came in, then it's likely that it'll just get reused again. Carrying spare parts is a very good idea. I've done that for years, and it's paid off for me. Just be sure to carry the tools for a roadside fix.