I just replaced injectors & glow plugs .I NEED HELP

[excelwelder]

thanks for alll the help .I spent all fathers day on this project trying to do it right and clean ,Well itt looks like it will be extra clean now

Thanks again

[nccatfan]

Originally Posted by Dirk

depends on how much oil/fuel filled the cylinder and at what point the piston is in the cylinder. If he turned the engine over with the starter.......

True, yet there's no way to know, so I figured better safe than sorry. But if everything goes back together and works like it should it's gonna smoke for a few miles burning that oil residue off the pistons... just a heads-up.

[excelwelder]

Well I got her back together ,got the smoke to stop But it still runs as it did with one bad injector?Also I still have the check engine light on ? I dont have the codes yet But my question would is"Is this normal Some type of bleed off period ? break in time"

And i did disconnect the batts to re set the codes

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Last edited by excelwelder : 06-24-2009 at 12:15 AM.

[nccatfan]

Get that code first... How did that inj. harness look when you put it back? Those UVC harnesses have been known to fail, had connectors actually melt on my old '94... pretty much lost my entire pass. side bank. Amazingly enough, I managed to limp it in to a dealer for diagnostics (didn't know about the harness before). How does the ICP sensor look? Pull the plug on it, any oil inside the connector? Replace if there is.

[wriott]

it takes some driving to get the air out of the HPO system, i had to drive about 20 miles before mine would run good

[Dirk]

drive it around, get the air out. Then run for codes.

[excelwelder]

The harness on both side were replaced ,but the old ones looked good .They came with a kit so i replaced them while i was in there .By possibly having some fuel in my oil from pulling one injector and glow plug after i changed the oil would that caus it to run in this manner?

Also would that trigger the check engine light if the harness was dissconnected?

Thanks againg for all the help

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Last edited by excelwelder : 06-24-2009 at 07:46 AM.

[Dirk]

I ALWAYS change the oil after replacing injectors. But you need to drive the truck to remove the air out of the HPOP system (after you change the oil).

[wriott]

Dirk is the MAN, do what he says or you might be the one getting beat with a steak... seriously... drive it around after the oil change and if it doesnt get better by 50 miles or so then it time to look into seeing what is wrong

[Dirk]

After you change the oil, drive it for 20-50 miles... test for codes and do a cylinder contrib/balance test as well as a buzz test.


Buzz test will test the electrical system of the injectors. Harness issues, solenoids, idm, ect....

Contrib/balance will find cylinders that aren't working properly. Either bad injectors, low compression, bent push rods, ect...