TorresTransport Posted September 30, 2014 Share Posted September 30, 2014 ok heres the break down ...I've had this 2005 CHN613 with a ASET 427 E7 for the last 5 months now, everythings been going great until recently ...its been experiencing power loss, its not the turbo although i have been getting a 4-5 fault code but the waste gate/ turbo are operating fine, any suggestions on a solutions are very welcomed. I've changed the engine speed sensor, primer pump, turbo oil filter, next I'm going to change the diesel filter ...all these have been suggestions of my house mechanic ... Quote Link to comment Share on other sites More sharing options...
wheeler73 Posted September 30, 2014 Share Posted September 30, 2014 You really should do the 4-5 diagnostics when it is active. Also check the boost pressure sensor. I have seen a lot of issues with them. The way they are installed lets the air intake piping hit the connectorand causes the pins to loosen. I usually install a 45 or 90 degree fitting to intall the boost pressure sensor into the keep it from hitting the piping. Quote Link to comment Share on other sites More sharing options...
TorresTransport Posted September 30, 2014 Author Share Posted September 30, 2014 Thank you for the reply, the one issue that I have with trying to figure out the 4-5 fault code is that everyone mechanic especially the mack mechanics give me the old 'that code means nothing don't worry about it ...' line, I'm just dollar bills on legs to them coming back over and over Quote Link to comment Share on other sites More sharing options...
wheeler73 Posted September 30, 2014 Share Posted September 30, 2014 Thats unfortunate. Check the boost pressure sensor as this can cause 4-5 code along with other issues. It is not a code that means nothing. Sound like you have crappy dealers around you. Quote Link to comment Share on other sites More sharing options...
staxx Posted September 30, 2014 Share Posted September 30, 2014 The 3 pin connector at the turbo also known as the VGT connector , these pins are loose causing your 45 code . The pins on the engine harness side are the ones you need to replace , female . pins can be bought at MACK . The pins get loose from the engine fan blowing on it making wire and connector vibrate loosning up the pin tension and breaking down the copper wire inside . 1 Quote Link to comment Share on other sites More sharing options...
TorresTransport Posted September 30, 2014 Author Share Posted September 30, 2014 Would the VGT connector malfunction cause the truck to lose power/torque?? I'm going to pick it up today after ...hopefully a full days work ...and yes, the mechanics around here are terrible Quote Link to comment Share on other sites More sharing options...
TorresTransport Posted September 30, 2014 Author Share Posted September 30, 2014 Staxx, thank you very much sir. That was exactly the problem with my truck, hopefully one day I can be of help to you as you were to me on this day 2 Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 25 Share Posted April 25 My chn 613 427 I’m losing power and blowing black smoke at lower rpm’s I know Mack’s don’t have conventional injectors but it’s acting like an injector loading up fault codes are signal codes to the cylinders I’m guessing that’s poor signal to the injector can somebody plse tell me where to start I haven’t had truck long and depend on it to feed my family Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted April 25 Share Posted April 25 Pressure test the charge air system Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 25 Share Posted April 25 OK, Mac engines are alien to me. What does that do on this engine particular engine and I might add we found by taking one of the tubes that come out of the EGR off that it has been deleted the tube is plugged. Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted April 25 Share Posted April 25 the big black radiator looking thing in front of the radiator. if there is a leak in it, or the big boots, or the intake gasket, you will loose boost, power and make a lot of black smoke. 1 Quote Link to comment Share on other sites More sharing options...
The Heinz Posted April 25 Share Posted April 25 1 hour ago, Artful dodger said: OK, Mac engines are alien to me. What does that do on this engine particular engine and I might add we found by taking one of the tubes that come out of the EGR off that it has been deleted the tube is plugged. Here's a simple diagram of the CAC system on a similar truck. Like Joey said, the actual charge air cooler is in front of the radiator. You can look up Youtube videos on how to pressure test a CAC system if you need. 1 Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 27 Share Posted April 27 Thank you fellas I’m gona build a a gadget today to pressure test it air to air was one of the things on the list that I thought could be a possibility. Along with bad injector any one of 100 sensors or turbo just failing I do have a leak at exhaust manifold we found as can’t believe I didn’t see this day of purchase looks like egr has been jb welded there’s a lot of black soot all over the engine I’ll start with air charge Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted April 27 Share Posted April 27 is that a coolant leak? Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 27 Share Posted April 27 It’s thick almost feels like chunky grease but I believe that’s a coolant line . Does all that egr stuff have to stay on the truck can all that shit come off since it’s deleted anyway. I owned road tractors for yrs cats Detroit and Cummins I know I sound like a greenhorn and on this Mack dump truck that’s cause I am …if you look at all the soot on the engine it’s all over did find one leak in exhaust manifold . What kind of gasket goes with that manifold Is it one I can make or is it special Quote Link to comment Share on other sites More sharing options...
JoeH Posted April 27 Share Posted April 27 Not saying you can't delete Macks, but there is very little aftermarket support for it. Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 28 Share Posted April 28 Thanks fellas again. I’m going take that pc of piping off and take a photo maybe you see something diff than I do. I did find a wear spot on one of the boots for air to air don’t know yet if that’s the leak or not getting ready to see. Also that red orange substance I am reluctant to to peel away at that silicon and see what’s under it but gona have to I’m guessing could be a crack in the egr cooler that would prolly not help the smoke and boost problem any. Ok so the exhaust manifold gaskets for these motors I have one on back order along with a turbo gasket are there any other gaskets within this turbo egr side that I should just replace while I’m in there ? Could cracked egr cooler be the problem? The codes thrown again where signal codes and waste gate code signal code read somthing like low signal cylinder 2 every time it’s hooked to computer it throws 15 codes 15 times every time !! thanks guys Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted April 28 Share Posted April 28 I have never worked on a deleted ASET-C engine.. I wonder how it could run right wth the 2 sensors in the EGR crossover pipe, not giving correct readings? also, change the small air filter at the VGT acuator.. and check air pressure going to the VGT... Quote Link to comment Share on other sites More sharing options...
fjh Posted April 28 Share Posted April 28 I have capped off the egr flow on these they run fine but will throw a code for low egr flow!They usually don’t derate! what kind of boost do you see? You should be seeing at least 33 psi! 35 plus is normal under load! 1 Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 28 Share Posted April 28 I don’t have a boost gauge in this truck first one I’ve ever had without one.. so I don’t know I took boot off front of turbo and there’s a smidge of oil not much at all egr is unplugged also the codes are a 4-5 code which is waste gate I think then signal codes to cylinders 15 codes 15 times everytime if there’s a leak in air to air I haven’t found it yet. Could it be electrical ? I’m just lost man and I’ve spent so much money already I’m a bit beat up but not much quit in me so Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted April 28 Share Posted April 28 FJH,, do you think the ring nozzle is sooted up? Quote Link to comment Share on other sites More sharing options...
fjh Posted April 28 Share Posted April 28 The vane control could be!they sometimes seaze! try turning the key on and check if the vGT strokes it should go full stroke then back to start position! Does a self check every time the key is turned on! 1 Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 28 Share Posted April 28 Okay I’ll have someone hit key for me I took air line off started it and plugged hole with my thumb and it worked. So I assumed it was good Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 28 Share Posted April 28 Could it possibly be electrical with it being signal codes on the cylinders? Quote Link to comment Share on other sites More sharing options...
Artful dodger Posted April 28 Share Posted April 28 Ring nozzle I’ll look at that as well everything is sooted up lol I’ve washed and washed cleaned contacts fuses I’ve spent last 2 days hunting for the prob truck has to work tomorrow Quote Link to comment Share on other sites More sharing options...
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