So I changed my fuel filter the other day everything went good until I started the truck and let it idle. While idling it was knocking badly so I took it out and drove it hard and added PS, it has since stopped. But I am worried that debri may have gotten into the Injectors. What are the signs of a bad Injector?

Thanks

 

Generally, they fail staying open & fill the crank case with diesel. Obviously, if you see this, 1) Your oil level will increase, 2) MPG will be significantly lower, and 3) if you have a real oil pressure gauge, you may see oil pressure much lower than normal.

HTH

Tony

 

Thanks TonyB

 

You bet! Let us know what you find.

Tony

 

My oil level isnt changing any and dealer wants to flow test the injectors to check the nozzles I believe???? I dont know much about injectors is there any way to Know for sure if either the nozzles or the bodies are damaged????

 

Whatever you do, don't tell them it happened right after you changed the filter 'cause they'll claim you caused the problem, whether you did or not.

 

1) Physical inspection - cracks, broken parts, etc.
2) Scoring from I & R.
3) Flow test: Blockage, or aftermarket honed injectors (flow more), or may squirt through the crack if missed by physical inspection.

I'm not saying you have aftermarket injectors...just saying they would be able to tell.

HTH

Tony

 

HAHA no aftermarket injectors here..... When the warranty is gone then I might until then I am going to stick to mods that involve suspension

 

I hear you! I've been toying around with the idea of installing a tuner....after driving my buddies truck! What a difference! I just can't bring myself to do it to a motor that has a 100k warranty! Even as much as I HATE dealers!

Tony