I did have one on a 16 high mileage. I walnut blasted the intake ports and put in a set of injectors. Imbalance codes are very problematic to chase. The injector balance test is not accurate side to side I found out. I'll post a link to it.
Hello I have a 2014 and mine is throwing the po172, po175. When I have been driving it for a while, when I go to shut it off it’s misfires a lot whenever I turn it off. Do you think it is the high pressure pump?
Hi Phillip I have 2015 sierra 5.3 oil level keeps rising above full mark but no check engine light must be high pressure pump leaking? Would appreciate any feedback thanks
Does the oil feel thinned out? As you mentioned it could be a leaking hp pump. Does the hp fuel pressure drop when shut off? Usually this will set fuel trim codes. If the oil is creamy then it could be coolant leaking internally but obviously the coolant would be going down.
@@Factz101 that will sure make it run rich. Should be able to reset under functional tests or output tests depending upon which Autel scanner you have.
Well i had my engine replaced with a jasper rebuild and i get a code to replace the hi pressure pump and i find the foam missing loose electrical connections on the injectors and what i assume is a ground cable about the width of a belt coming from behind the engine with one hole braided on the end not attached to anything and i have no idea where it goes. I think next to break booster but not sure @PhillipBailey
Great video as always man! Very humble and smart mechanic.
If u ever have an injector in balance code love to see that.. thanks love your videos
I did have one on a 16 high mileage. I walnut blasted the intake ports and put in a set of injectors. Imbalance codes are very problematic to chase. The injector balance test is not accurate side to side I found out. I'll post a link to it.
ruclips.net/video/PXJXpfg_AYo/видео.html
Hello I have a 2014 and mine is throwing the po172, po175. When I have been driving it for a while, when I go to shut it off it’s misfires a lot whenever I turn it off. Do you think it is the high pressure pump?
@Justin-ro9hh is your oil overfull with gasoline in it? If so that's likely the culprit
One of my bolt holes strippde trying to install the new pump is the treads go into the engine block?
@robertperez4047 Yes they are. Helicoil maybe
Hi Phillip I have 2015 sierra 5.3 oil level keeps rising above full mark but no check engine light must be high pressure pump leaking? Would appreciate any feedback thanks
Does the oil feel thinned out? As you mentioned it could be a leaking hp pump. Does the hp fuel pressure drop when shut off? Usually this will set fuel trim codes. If the oil is creamy then it could be coolant leaking internally but obviously the coolant would be going down.
Thanks for the feedback Phil much appreciated I'll have to get fuel trims scanned keep up the excellent content!
Does the 2013 2500hd 6.0 have the high pressure fuel pump also?
I believe the 6.0 is port fuel injection only so no high pressure pump. Look for the injectors in the intake ports
Disregard. I believe I located my problem. My alcohol content level is reading 73%. I haven't autell scanner, just can't figure out how to reset it
@@Factz101 that will sure make it run rich. Should be able to reset under functional tests or output tests depending upon which Autel scanner you have.
good fix
tks
So what happens if you don't have the foam diffuser
It's basically to quiet the hp pump and injectors down. I'd say it would just be noisier if it's missing.
Well i had my engine replaced with a jasper rebuild and i get a code to replace the hi pressure pump and i find the foam missing loose electrical connections on the injectors and what i assume is a ground cable about the width of a belt coming from behind the engine with one hole braided on the end not attached to anything and i have no idea where it goes. I think next to break booster but not sure @PhillipBailey
Thank you by the way
@blainedavis8997 if I remember there is a braided ground strap from the body to the back of one of the cylinder heads.
I am uploading a video I will send link as soon as it's uploaded
Yep. GM is mostly Chinese now. Sad reality.
Please cljck on my name i made a video showing my original question i tried to ad the link to our original thread but it does not show
Watched it and commented on it on your channel...