Jlam

On 9/18/2022 at 9:35 PM, Onyx610 said:

Good leak haha, let use know what you find

It was a bunch of hose clamps that were loose & the radiator cap needs to be replaced, besides that we’re good now on coolant 

Pressure tested the system & boy there is a few leaks but on is a pretty decent one, gonna find it tomorrow. 

3 hours ago, Joey Mack said:

so you dont see any stripes of burnt coolant on the engine block..  pinkish whiteish streaks? unless you are using green or yellow coolant..  you still would see streaks of burnt/dried coolant.. 

no streaks anywhere. It’s the weirdest thing but when I had the exhaust manifold off the injectors all had a white coating on them of something, is this normal? 

8 minutes ago, Joey Mack said:

white smoke is coolant, typically...  is the egr cooler bad?

It’s not leaking or anything so not that I know of but I blocked the egr off now 

20 hours ago, Joey Mack said:

what color is the exhaust?

The inside of the pipe is black but sometimes blows white smoke & stutters when I take off from a stop, usually around 4th gear. 

3 hours ago, Joey Mack said:

Is it draining from the drain tray onto the ground? Or onto the floor? How about a pressure test of a full system and look for engine leaks. Park on a clean spot or through a sheet of cardboard under it if you need too..  Hell, there should be obvious signs of a leak, at that rate.disregard the heater core idea for now..

I can’t find a leak anywhere, even parking on clean area. But gonna pressure test this weekend cause it’s way too weird lol 

So we have a new issue now, using a gallon of coolant a week & also smelling it thru my vents when my air conditioning is on 

45 minutes ago, Onyx610 said:

Boost leak? Hard to tell…Almost sounds like a metal on metal squeal sound. 

Not metal to metal but for sure a squeal that I can’t figure out where it’s coming from, for sure passenger side 

Anybody know what this sounds is, does it any time acceleration with a load on? 

On 9/9/2022 at 5:51 AM, Vmac3 said:

First make sure the parking brakes are applied and the engine is idling at temperature. Cycle the cruise control On/Off switch 3 times, the engine rpm should go down to 550 rpm. With the Set/Resume switch (its a spring loaded switch), toggle the resume to increase the engine rpm. Once you have set it to the engine rpm you want, press the clutch in. It should stay at your desired rpm. If its an automated transmission, then you would need Tech Tool to set the rpm.

Hope this helps.

V

Yeah mine probably needs a program I tried it & it didn’t work 

2 hours ago, Dirtymilkman said:

I would bump your idle RPM's up first. 625 is to low. 

How would I get it bumped up? 

On 9/6/2022 at 8:35 PM, Vmac3 said:

Did you remove and inspect the engine ecu connectors as FJH mentioned?  

V

I have not yet 

2 hours ago, Joey Mack said:

an oil analisys is the best way, but the quickest way I can tell is by smell, (if its really bad),,  sight, (very thin) and not milky, (thats coolant)..  and lastly, I do a 'Halo test'...  get a clean piece of cardboard,  the common kind, not the shinny kind....  take it to the engine, pull the dipstick and let it drip one good drip on the card board, then watch...  if a halo forms around the oil droplet in a few seconds, the oil is contaminated..  diesel will seperate itself from the oil quickly...  basically it will look like a mini black sunny side up egg..  oil in the middle sitting on top of the cardboard, and the fuel will soak into the cardboard around the oil..  Jojo

Do you think I should do it hot or cold? 

Here is my oil pressure at temp at idle after driving 

4 hours ago, Joey Mack said:

I see you are getting some good advice on diagnostics..  Did you happen to put a gauge in one of the oil gallery ports to see if the oil pressure is truly low??  I have one on a 12 foot long hose, it rides in the cab with me when I test drive...  

I have not done that yet 

4 hours ago, Joey Mack said:

Fuel in the oil can surely cause low oil pressure..  I just went through this with 2 E-Techs in July..  .  Good luck.  Jojo

Would I smell the fuel in the oil? 

8 hours ago, Mackpro said:

What’s the model and last 6 of Vin and I can have my guy see what software levels are in it 

The last six is “011509”

6 hours ago, Vmac3 said:

Egr blocked off? Ecm is looking for egr flow. It's probably derating the engine. Any codes?

V

 

No codes, it did this before I blocked the egr. Thought blocking it would help but then found this on my boost issue from a stop. Lmk what you guys think I can do 

Also it seems to have a sputter when I’m doing 70 down highway that’s new 

@Vmac3 2007 Mack Chn 613 with a aset 427 in it & it’s got new turbo, new vgt actuator, new boost sensor, new boost pressure valve, new air filter, egr blocked off, oil pressure at idle & to temp is about 12psi & truck has 588k on it 

Oil pressure gets below 15psi & turbo veins open & truck has no boost leaving a stop, any ideas what I can do to help stay above 15psi? 

Hey guys so I have a 2007 aset 427 & when I get to temp whenever I come to a stop light or to a stop it does a loud squeak like noise & then I have no boost until about 5th/6th gear. Any clues? 

How do you guys go about blocking the EGR valve? Mine is sticking & I am tired of loosing power when driving & seems like blocking it would help power & fuel? let me know what your guys thoughts on this are thanks!

Thanks guys I’ll try this tomorrow 

Hey guys I’ve got an aset & was wondering how I clean out the egr cooler & if there is a way to lube the egr valve cause it’s sticking.