Kevin_Rymwid Posted November 12, 2015 Share Posted November 12, 2015 Damn 04 6.0 I worked on that had no boost which I posted about came back with lack of power... took it out on the road, good boost but barely gets out of its own way. Takes bout 400 ft wide open throttle to get from 40 to 50 mph. first thought was clogged cat, took the downpipe off the cat, drove it again, no change... No codes again. At wide open throttle on take off the ICP hits up to 3800 psi. The EBP will hit 48 psi at times but hovers around 35-40 psi. It took me about 15 seconds to go 0-60... I'm starting to think that this is not engine related, everything seems ok. Boost hit 22 psi... This thing is boggling my mind like nothing else!! Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted November 12, 2015 Share Posted November 12, 2015 Did you verify fuel pressure on this truck? WHILE driving? Just askin. Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 12, 2015 Author Share Posted November 12, 2015 No sir, do not have any way to test it to be honest. We don't have any sort of fuel pressure testing equipment (all has been taken by previous techs). Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 12, 2015 Author Share Posted November 12, 2015 Also should add that it does bang when shifting.. don't know if that helps or not Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 12, 2015 Author Share Posted November 12, 2015 I jimmy rigged a fuel pressure tester to work from autozone, can't really take a drive with it, its teed into the fuel pressure line.. KOER is 48 psi, power braking it goes down to like 44 psi. Quote Link to comment Share on other sites More sharing options...
leavnon3rd Posted November 12, 2015 Share Posted November 12, 2015 how about a torque converter issue? and boost pressure, can you verify the map is correct? have you done a turbo boost test? Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 12, 2015 Author Share Posted November 12, 2015 Could potentially be a torque converter issue. Not a tranny guy here so not sure how to tell. Boost pressure is correct, checked with manual gauge. Quote Link to comment Share on other sites More sharing options...
ktmlew Posted November 13, 2015 Share Posted November 13, 2015 I jimmy rigged a fuel pressure tester to work from autozone, can't really take a drive with it, its teed into the fuel pressure line.. KOER is 48 psi, power braking it goes down to like 44 psi. I beleive 55 psi minimum under load is the spec. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted November 13, 2015 Share Posted November 13, 2015 Kevin, you need to step back for a second. It is time to have a talk with management about the shop's situation. These trucks are damn hard enough to fix with the correct tools. Using the wrong tools or tools that are not equivalent to the ones needed for a particular job will create a bigger problem than the one that is in front of you i.e. a broken truck. The biggest enemy we face is interpreting collected data incorrectly. This will lead you down the wrong path right off the bat and everything else goes South quick. Get the right stuff and follow the the "hard start/performance" sheets and you will fix every Powerstroke that comes to your bay. I guarantee it! 1 Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 13, 2015 Author Share Posted November 13, 2015 That is correct, I had taken the primary fuel filter out, had been packed with sand and rust. I am recommending a fuel system at this point... the filter was collapsed and there was a healthy handful of rust throughout. Thanks again guys! Quote Link to comment Share on other sites More sharing options...
Kevin_Rymwid Posted November 13, 2015 Author Share Posted November 13, 2015 I've been trying to get that taken care of Brad... they are stubborn and cheap. They think we can fix anything with a set of sockets and some wd40. I will keep pestering them, and if nothing happens I'll be going to the owner of the dealer to discuss these matters. Thank you Brad. I really appreciate everything yall have helped me with so far. It's been a huge huge help. Quote Link to comment Share on other sites More sharing options...
forddieseldoctor Posted November 15, 2015 Share Posted November 15, 2015 No sir, do not have any way to test it to be honest. We don't have any sort of fuel pressure testing equipment (all has been taken by previous techs). I dealt with that in the past. That was the day that I decided to start building my own gauge set. I bought an oil and transmission kit from one of the tool dealers and expanded from there. I used the brass adapter for air testing the high pressure oil system and screwed it in the test port on the secondary housing. I have since bought my own adapter hose from a local hydraulic repair shop. The thread is 12 X 1.5 metric o-ring thread. I've been trying to get that taken care of Brad... they are stubborn and cheap. They think we can fix anything with a set of sockets and some wd40. I will keep pestering them, and if nothing happens I'll be going to the owner of the dealer to discuss these matters. Thank you Brad. I really appreciate everything yall have helped me with so far. It's been a huge huge help. Been there done that. 1 Quote Link to comment Share on other sites More sharing options...
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