Injector failed after oil change

[lancinfish]

I had my oil changed last Friday. Now the truck is missing on cold starts and sometimes at idle. I puled the codes today and it says that Injector #8 failed contribution test & I have an EGR code.

I am sure that My EGR probably needs cleaned, but woudl this cause the injector to fail? Also, why did the injector fail after the oil change. There is no smoke like it has a bad injector and once you warm it up, it runs fine except when you stop it starts to miss about 1/2 the time at idle.

Any opionions? everythin else checked out fine except for a glow plug on cyl #2.

[npccpartsman]

Did you do anything different on your oil change? Brands, filter, etc. How often do your change your oil, because that makes a big difference on injector life. Also, who changed your oil as that could make a BIG difference too.

[Deib]

I am pretty new at this 6l thing, but learning fast.

Did you swap brands of oil? Or weights?

Also how much have you driven it? It may take some time to work all the air out as I understand it.
Including the fuel system if you had those filters changed.

Otherwise, run it hard and see if it will free up before you give up and replace it.

After an oil change I had 3 injector codes, changed oil to a lighter weight and now I only have one, which reflects how it was running before the oil change.
Good luck.

[lancinfish]

Oil Changes are every 5K to 6K miles. This one was about 5,500 miles apoxamate. The people who normally change my oil and work on my truck did the oil change and I was standing there next to the truck the entire time. There was not anything done out of the ordianary.

I run sythetic as I have since I purchased the turck 30K miles ago.

[dsanderson89]

I'm having similar problems with my 04. Started idling rough and coming off stops rough. Blowing black smoke all the time. I added fuel injector cleaner-no change. Changed fuel filters & checked air filter. Ran better but still smoking black - BAD. Then, cleaned EGR valve and installed new o-ring kit. Went from blowing black smoke to dirty white color smoke but runs great now. The kicker is this started the day my 5YR/100,000 warranty ran out and I didn't check soon enough. Now Ford won't cover anything, they tell me. Anybody have ideas? I'm new to this so forgive me if I'm not threading right.

[chuckles]

so it only misses at idle? If so, I would clean EGR First and recheck.

[chuckles]

Originally Posted by dsanderson89

I'm having similar problems with my 04. Started idling rough and coming off stops rough. Blowing black smoke all the time. I added fuel injector cleaner-no change. Changed fuel filters & checked air filter. Ran better but still smoking black - BAD. Then, cleaned EGR valve and installed new o-ring kit. Went from blowing black smoke to dirty white color smoke but runs great now. The kicker is this started the day my 5YR/100,000 warranty ran out and I didn't check soon enough. Now Ford won't cover anything, they tell me. Anybody have ideas? I'm new to this so forgive me if I'm not threading right.

welcome to the org..

So you got the basics covered. (air and fuel filters). Cleaned EGR. Ok, how is coolant level? Is it using coolant? Is the white smoke all the time? Does it smoke when hot, cold, or both?

[lancinfish]

I am going to try to clean the EGR in the morning. There is not really any smoke, that is what puzzles me. I will get back to yall if it does not solve the problem.

Will a dirty EGR cause an injector code in additino to the EGR code?

[Diesel Freak]

EGR Valve is easy and cheap to clean. I'm with Chuckles.....try it first! I run a fuel conditioner about every 3rd fill up. Good cheap maintenance IMO

[Diesel Freak]

Still have plenty of power?