Need Help!!!! Blowby In Exhaust

[baja38ss]

I'm guessing I should have a engine compression check first to make
sure I'm not talking rings ect. I only have 76k on the truck. Can a injector
test still show ok and still be leaking down???

I'll take any help thanks in advance..

Scott

[bigcountrysg]

Originally Posted by baja38ss

I'm guessing I should have a engine compression check first to make
sure I'm not talking rings ect. I only have 76k on the truck. Can a injector
test still show ok and still be leaking down???

I'll take any help thanks in advance..

Scott

Welcome to the site, can you give us the info on your truck. Year, Model, Engine, all that good stuff so we know what your dealing with.

[baja38ss]

01 7.3 Sd Sb Drw Edge With Attitude 4 Dp 5 Inch Out K&n
Everything Checks Out As Far As Fuel Pressure And Injectors.
Has A Miss Under Load No Power. Not Throwing Any Codes.
Oil In The Tailpipe, Injector Leak Down???only 76k On Truck..

[bigcountrysg]

Could, be one or two injectors with bad o-rings, usually blow by is into the intake. But in a bad case it could put oil out the exhaust. How much oil are you using. lets say in a typical week of driving how much oil are you having to add.

[baja38ss]

I just changed mine oil out to syn and I only used 1/2 quart on the old oil at
2000 miles.
Now I'm noticing a difference on the missing because of the syn. oil. I just
had #8 injector go about two weeks ago ran great and then seemed to get
worse as I drove it through the week. Maybe the didn't get a good seat on # 8?? It's leaving oil deposits on the back of the truck from the exhaust..

[baja38ss]

What do I get checked first??

[bigcountrysg]

Well if you just had the #8 injector fixed a couple weeks ago, maybe you should go back to the shop that did the repair, They may not have done something correctly that is causing your problem.

[djsdiesel]

Oil in the tailpipe usually means turbo. if it was leaking into the cylinder you would have a lot of blue smoke coming from the tailpipe.

[baja38ss]

don't see any smoke would that be the o ring on the turbo
thats bad?

[djsdiesel]

If it is the turbo, then you will have lost the bearing on the shaft. The best way to find out if it is the turbo is Take the intake piping off and reach in and wiggle the shaft. It should have very little play in it. If it has alot of play in it then it's bad. You can rebuild them, but by the time you buy all the parts and put your time into it you'll be almost as much as a rebuilt factory one and you won't have a warranty on it. I would recommend buying a rebuilt one with some kind of warranty.