helo, I have 1999 MACK CH with E7 electronic. Just two days ago two nozzles went bad so i decide to replace all 6, after first start it sounded perfect like new. I got it loaded and then I was so disapointed. Truck have lock of power, turbo boost is going only to 19psi. After i unload running empty sometimes it will make 24 psi an it will pull realy powerfull. No smoke butt little thru shifting, no change in coolant temp. oil temp etc...fuel milage where about 6 mpg under 46000 lbs oversize load. All thing acting up like fuel filter or something else restricting fuel. Filters are new. Throttle going slow to accelerate, before replacing nozzles turbo boost will go up to 24 and somethimes 30 psi so this was a problem before nozzle change, and I tought something is wrong with fuel injection that was a reason to replace all 6 injection nozzles and now its even worse. If anybody have any idea where to start looking please let me know.
