I've been reading some threads and stories about the 2005 trucks and the fuel injectors sometimes get stuck open after 100k miles or so leading to all sorts of problems. I'm looking to get ahead of this problem as I doubt I'm within any kind of extended warranty period through ford anymore. My truck has 105k miles and I've been trying to find out which injectors to get. My instinct is to go with Motorcraft CM5138 injectors (#5C3Z9F593DC) which are anywhere between $33-38 dollars each depending where I look. Are these the same ones that had the issue in the first place, or are these revised so that this issue won't come back again? I haven't been able to get a definitive answer through my searches and I see some people going with Bosch injectors that are around $400 for the set ($50/each). Any insight is appreciated.

 

Update: Sorry I guess I didn't quite search enough. I stumbled upon this thread which seems to confirm the part # of the injectors.
https://www.f150forum.com/f4/preempt...ed-pics-80887/

 

sch Upgrade 400 or so bucks for all 8 and they are 4 hole instead of two

 

i got a set of reman ford ones off ebay, guys account was " fuelinjectorman" have put about 60,000km since and there great, for under $200 canadian

 

 

Thank you for the recommendation. I purchased the same injectors from "fuelinjectorman" and the install went great. The part number in the ad was as follows:

OEM #5C3Z9F593DC
FORD # 5C3E-DC OR 5C3E-DB (both are the same)

Once the engine is running, it has been driving great since replacement (about 400 miles now). But I'm noticing a few minors hiccups that I'm not sure are related, but only started after, the injector replacement. This symptom seems most noticeable after the engine is hot. For example today after driving around to multiple locations on some errand runs. For reference before the injector change my engine would crank a few times, 3-4 maybe, then start. Pretty consistantly, no issues. Now, when starting the engine hot, after sitting for only a few minutes it'll either start immediately (like first engine revolution it'll immediately fire, or sometimes it'll take a few more revolutions than normal (6-7), and then today it struggled to start, made some clicking noises, and then fired. I can't really explain it better. Before i switched the injectors it was consistent. Always started the same, hot or cold. Now there isn't much consistency although it has never actually failed to start. Is this just all in my head? Are these the correct injectors? I looked through a lot of info and many different part numbers and just want to make sure.

 

Have you also replaced the plugs, Cops and boots? Mine will occasionally do the almost start, hard start right after. Always has.

 

Plugs and Cops were replaced about 10k miles ago so those should be good still. I guess I'll just accept this new behavior as normal. I don't see any other ill effects of it.

 

How about the fuel filter? Just a shot in the dark.

 

Fuel Filter and FPDM both have been replaced in the last 1000 miles as well.