We have a bunch of MXs running around with just over 500,000 on them and I have not had to do anything more inside the engine than replace a...
Most likely if your truck is a 2014 it was built with the better DEF lines. We still do see them fail but not as much as the older ones. On...
Paccar's supplier of DEF lines ( Parker ) has updated the lines with a better sealed end. The warranty of the lines has been increased to 10 years...
Pretty much all the MX engine we have out are not doing great on fuel milage. I have never saw one over 6.5 mpg. We see the same trucks same speck...
Your freind who bought the 389 and specked it had to sign a build sheet before the truck was ordered. It would specify how big and where the DEF...
I would wonder about that 9.5 volts. Make sure you have good 12 volts power and ground to the ecu. Any ecu power problems could cause all sorts of...
When you pull your fan contol relay do you have fused power on 223? If you pull your relay does the fan stay running or turn off? One big thing to...
Hi, first things first. Your fan is not completely controled by your ecm. In fact most functions do not go through the ecm and the trucks are not...
They send all the Volvos to WI and put them on farms. Old log, milk, and cement trucks for silage trucks. Also alot of grain trucks. Anyways to...
If I had to take a guess I'd say your electric lift pump is leaking either from the gaskets or has a hole in the bottom of it. Or you have some...
Do you know if you have a Kyser or a Horton clutch? Most older Petes had Horton air to apply clutches. Rebuild kits for these are not too much $....
Is the fan comming on? Is your radiator plugged with bug guts or danilion fuzz? Coolant should run under 210F Oil should be Under 250F. Does your...
I have often told our younger techs who are whinning about doing clutch jobs to shut it or I'll find them a B model Mack to pull the trans on. The...
Just a quick FWI there is no oil temp sensor on any Cat engine Peterbilt with the Namex guage systom (mid 05 and latter with digital odometer)....
Hmmm member PB579 is located in Denton.... and only speaks good things about Peterbilt. No chance that has somthing to do with Peterbilts...
Sorry for the delayed response, If you have access to Quickserve here is the link to the proccedure....
Hello, It is not a issue of cam gears slipping. If you are familuar with Isx timming you know the injection timming is set using a wedge and...
Enough fuel to cause low oil press warning light and codes would be very noticable on the dipstick. Most likely the oil filter is plugged or the...
First off you need to take it to a shop. They need to go through the low oil press tree. They will measure oil press before and after the filter....
I work in a Pete garage in the US. Although I hate the MX engines we have never had one with a oil consumption issue yet... We also have never had...
