Injector Install?

[DuramaxTireSmoker]

Howdy, I am installing 6 injectors in a 2011 LML.

2 Questions, Do the injectors need reprogramming after install?

Also, some of the injectors were stuck open, do i need to pull the freeze plug or glow plug to release pressure/oil

Thanks!

 

[02greysixer]

Yes the flow rates will need programmed. And if they were stuck open I'd definitely pull glow plugs and crank it over

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[DuramaxTireSmoker]

Yes the flow rates will need programmed. And if they were stuck open I'd definitely pull glow plugs and crank it over

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Ok, so thats all i need to do is pull the glow plugs and crank the truck?

Thanks for you help btw!

 

[catman3126]

Might try to rol it over but its probly fine to crank it if all the Gp's are out. how did this happen? bad fuel?

 

[DuramaxTireSmoker]

Might try to rol it over but its probly fine to crank it if all the Gp's are out. how did this happen? bad fuel?

I'm guessing bad fuel, 165k miles and worked quite hard also. Balance rates were really bad.

 

[Awenta]

Why not do all 8?

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[DuramaxTireSmoker]

Anybody ever had problems pulling injectors? I have 2 that are very stuck, will not pull up.

 

[Rancelot211]

Use a pry bar and a rag.

 

[baddaddition]

Put the injector line back on it and use it to wiggle the injector.

 

[DuramaxTireSmoker]

I installed 5 injectors, the truck is actually running worse? It has a very loud knock(very noisy) Balance rates are all over the place even on the injectors i replaced. No major blowby... any ideas??

 

[DuramaxTireSmoker]

It runs so rough the whole truck shakes up and down.

 

[Ne-max]

Did you program them?

 

[DuramaxTireSmoker]

not yet. Will that make it run rough?

 

[Ne-max]

Yes

 

[DuramaxTireSmoker]

Can i do this with a V2? or does it have to be done at a dealer.

 

[Bonestock]

Can i do this with a V2? or does it have to be done at a dealer.

V2 will work.

 

[Bonestock]

Connect the V2/Autocal cable to the diagnostic port
2. Press "F3 Tuning Tool" (Autocal Select "Tuning tool)
3. Next, press "F2 Configuration" (Skip this step for Autocal)
4. Next, press "F1 Read GPM Inject"("Autocal scroll down to Read GPM Injector and press OK")
5. Next, press "F3 Prog ECM Inject"("Autocal scroll down to Prog ECM Injector and press OK")
6. That's it, easy enough.

 

[02greysixer]

I've never had a truck run as bad as you're saying with the flow rates not programmed. I always start them up first before I go through the hassle of programming. They're just not as smooth or quiet. Not bad though. The average person probably wouldn't even notice.
Did you check fuel quality? I bet you either need the other 3 and/or contamination has ruined the ones you just installed as well.

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[DuramaxTireSmoker]

I drained all of the fuel and put fresh in before i installed injectors

 

[DuramaxTireSmoker]

Anybody have any ideas what could be causing it to run so bad?