Discussion Starter • #1 • Sep 15, 2012. In most cases, the problem here is associated with the idle air control (IAC) valve. It just sounds like it’s having a hard time of it when I am at a stop light or a drive thru. Replies: 7. Originally produced in 1975 through a collaboration between Caterpillar and Ford, the Cat 3208 diesel engine was extremely popular through its entire production run, which lasted into the early 1990s. Blow-by is a condition where diesel fuel, air and vapor are pushed past the rings into the crankcase of the engine. Mack E7 engine specs, bolt torques, workshop manuals. We use cookies to give you the best possible experience on our website. February 5, 2021 Date Group No. I just got my injection pump rebuilt which fixed a ton of the bad idle and also improved my overall boost. Last Post by Gold Dog. Boost temperature sensor 20524936. Release Page Service Bulletin 11.2009 258 48 01 5( 5 ) 3 W2062176 3 Reconnect the fuel pressure sensor and electrical connectors to the top of the aftertreatment shut-off valve. A brand new diesel engine running at full load will experience a little bit of blow-by upon startup. Serv, my Mack, also a 2003 CX613 (but with a 460 instead) has had a jumpy idle when hot since new. Sounds like an injecter maybe broke the plunged or possibly a rocker ARM you can use a hand held laser heat gun at the exhaust manifold also could be cam sensor I haven't worked on a cat for a while but I know cummins are bad #### the inj harness wires covering deteriorate and then then rub together they idle real rough with no check engine lite Mack E7 engines are found in mining, oil and gas, agriculture, construction, pumps and compressors and power generation. But, behind the scenes are some interesting details that make the … White smoke indicates a water leak somewhere. Stay connected with ELLS International. Causes of Diesel Engine Smoke - By Color. Humidity sensor 21046544. Built Mack Tough - Meet the MP8 & MP10 Engines The Mack MP Engine Series is the ultimate power-to-weight engine platform. Hello, I have a 2005 Honda Civic Hybrid that I bought off my parents a year ago. The Mack MP8 13-liter engine at first glance seems to be very similar to any other modern day diesel power plant. The IAC valve is controlled by the computer and allows air to bypass the throttle valve under idle or cold temperature conditions to prevent a rough idle or keep the engine from stalling. 1997 Mack CH613 semi truck. 922,353 miles on odometer, 35,205 hours on meter, Mack E7 12.0L L6 diesel engine, Nine speed manual transmission, Twin screw, AC and heat, Tilt, Cruise, AM/FM/cassette , Passenger daylight door, Telescoping steering wheel, Air suspension seat, Chrome bumper, Dual 104 gallon fuel tanks, Single rear exhaust stack, Steel deck plate, … A diesel engine is a diesel engine no matter if its on a tractor or a Mack truck. Hi I posted in the 2nd gen forums but maybe Ill have better luck in the 2.2L exclusive section. Got a mack mp7 low fuel pressure and boost air system code..... fuel pressure at 35-38 psi at idle and 40-46 psi under rev..... whats the fuel pressure spec on the mp7 engine Sent from my SM-J111M usi ... Mack e7 no start help. Outlet NOX Sensor 21567763 ***** END 2007 ONLY ***** EGR Delta Pressure Sensor 21304786 (EGR Differential … I have no codes - Answered by a verified Technician. :beatsme:Banghead I've over 500k miles on it now and it still has a jumpy idle, and acts just like you described. Mack Trucks, Inc. A week ago I blew off a radiator hose and lost my antifreeze. Left out two days later on a … It has 75,000 miles on it. Mack E7 Engine Technology. I have a 1997 mack truck it has a e7-350 engine it starts fine after a short time a yellow light comes on malfunction electronic comes on low idle runs good when I speed up it starts to miss and smoke … read more The 300 is a full 2100 rpm engine were most 350 E6 mack engines are 1800 rpm.The 300 will have more low end torque than the 350. 4 4 Place the previously moved fuel lines in position against the cylinder block and install the clamp bracket and screw. SB210017 Specs for 1996 Certified E7-355/380 V-MAC® II Maxicruise Engines 3/19/1996 SB210018 Engine Oil Analysis — Soot, Total Base Number (TBN) and Nickel (Ni) Specifications 3/16/2005 SB210019 Specs for 1996 Certified E7-310/330 V-MAC® II Maxicruise Engines 3/29/1996 SB210020 Mack EO-L Plus Diesel Engine Oil Specification 7/24/1996 It’s starting to idle rough, rattling, and running rich. So if you want power without the added weight, you want a Mack MP engine. The rober Bosch pump is the P 7100 model and can be set to many setting with out buying different parts. does anyone have troubleshooting on these? 02-12-2021, 07:50 AM . Put it back on, let it cool down for two hours and filled it with water and ran it on home. Thanks Given: 392 Thanks Received: 849 (484 Posts) Posts: 1,132 Threads: 57 Joined: May 2016 10 04-06-2018, 05:20 PM . At the lowest rating of 250 hp the mack e7 engine will put out 975 foot pounds of torque. There are many causes of engine overheating and while we won’t go over all of them, we will point out some of the main causes of engine overheating and point you in the right direction […] It delivers phenomenal low-end torque and all the power you need. Inlet NOX Sensor 21567764. Twenty Reasons Why Your Engine is Overheating In this Truck Radiator guide we are going to go over 20 reasons why your engine may be overheating. 578 Posts . The mileage has dropped to 33-35 mpg from the usual 39 to 42. Compatible Fuel Types The natural gas System is compatible with methane-based fuels such as Compressed Natural Gas (CNG), Liquid Natural Gas (LNG) and Biogas. Dealership could not get it to not do it either, but told me some Macks just have this problem. mack egr mass flow sensor, (orings on sensor 4076823) EGR temperature sensor 21010707. Oil pressure sensor 21540602. ejh1 Location Offline Senior Member Reputation: 102. Author: johnb. Views: 152. You can test the IAC valve using a digital multimeter: Thinking long shot here and looking for advice. Typical horsepower rating for the mack e7 is between 250-400 hp. C.10690, DNG Conversion Manual Mack E7 Page 6 of 43 . It uses the standard emissions devices including the EGR system, DOC (Diesel Oxidation Catalyst), DPF (Diesel Particulate Filter), electronic injection and VGT (Variable Geometric Turbo). But with a 10 or 13 speed are some what sluggish at high rpm. 2008 Mack CHU with a mp8 that idles and runs really rough. mack e7 460 engine reviews. The problem happening at high RPM's makes sense to me because the tractor runs hot and the radiator builds up pressure. Boost pressure sensor 20524936. Ownership, maintenance and mechanical issues forum for all Mack truck models, including Pinnacle, Vision, Titan, Granite, CH, CX, CV Hose wasnt busted blew off the radiator on top. Question about MACK HP.