Jump to content

OJ Avery

Porch Pup
  • Content Count

    79
  • Joined

  • Last visited

Community Reputation

6 Good

About OJ Avery

  • Rank
    Old Iron Expert

Profile Information

  • Location
    UPSTATE NY

Previous Fields

  • Make
    MACK
  • Model
    GRANITE
  • Year
    2012

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Thanks JoeH, I believe we have the correct rod here in the shop and I've googled techniques, so I'll take a swing at it later today. I was hoping it has been an issue for others and there was a solution to the problem. this isn't the first one I've encountered
  2. OJ Avery

    mudman74

    the harness is all one piece. a little seepage out of that hole isn't a big concern. If you wanted to replace the o ring you'd have to remove the valve cover and unplug the injectors and engine brake. If you do go down that road be very careful with the injector connection, the wires get brittle.
  3. Anyone run into this?? This is a abs sensor mount for a rear axle. Truck is an 11 gu713. It rotted off from salt exposure. Is there a repair kit? or do I just go talk to the guy who has done "some" cast welding
  4. Turckster, I have watched techs here do the same thing. They've done one set and don't think they need to look at procedures any more. I just did a set that was 18 months old, maybe 15,000 miles. Had air in fuel bad and leak down/no start over night.
  5. Update....problem came back. Contacted someone higher up in Mack and had the telematics turned off for this truck.
  6. I always replace the cups with injectors, I don't like doing the job twice
  7. Hey! I was wondering how common a problem is injector leak down causing no start over night on a MP7? I've had it happen 2 times now and the first time I understand. It had OE injectors, ran really good n o codes. Cylinder balance was off a good amount (I don't recall how much) . I replaced the fuel filter head....which did have a sticking check valve. Same problem. We replace a lot of injectors here because of how the equipment is used. So I did the injectors in that one, problem solved. This one I just did is a MP7 also. It had injectors 18 months ago (conical). No start overnight, have to prime it to start it. Cylinder balance was off especially for recent injectors. The difference on the cylinder balance between 5 & 6 was 50. It also showed air in fuel. We went over all fuel lines and connections and all looked good. I finished the injectors and ran it. Shut it off at 2 yesterday and it fired no problem just now.
  8. I have run into this twice recently and both times it was a bad injector. One is sticking open I believe therefore leaking down quickly. Both of the trucks I did, both ran great no drivability issues and no air bubbles indicating cups. There were no injector codes . Cylinder balance test will show it being off some but not really enough to condemn it on that alone.
  9. it is a code for the sim card in the telematics module. The state installed their own gps devices through Verizon. Turns out they weren't playing together nicely. disconnected gps. so far ok. Thanks
  10. I have an odd one I've never seen before. B100409... sim card bad? thoughts??
  11. Having no luck on replacement procedure for the ps1 switch. Winging it
  12. yes, unit has had oil and filters changed. Was in here in June for same code. Looked a little deeper and its a pressure switch. I actually found a ohm value for it when I googled it so I'm going to drop the pan and see what I see.
  13. I'm having trouble locating in the parts manual which solenoid this is. Allison 4500. 13 Mack GU I don't have the breakouts I need to really diagnose it, boss wants to see if just replacing the solenoid will save a trip to the Allison dealer. Thanks!!
  14. previously worked on at a different location, no access to their laptop
  15. ok, so I did the reset, the instructions said to do a regen. Computer said regen was completed. After the regen it derated. Now it has a code for reductant pump a control circuit open ( p208A13)
×
×
  • Create New...