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mackrmodel686st

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About mackrmodel686st

  • Rank
    Truck Nut
  • Birthday 09/02/1980

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    Port Washington wi

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    Male

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  1. I'd say the fan robs more than that. With the a/c running, it feels like I'm driving an r model with the econodyne engine. I'll look into that video tho. Thanks.
  2. Its an e-7 427. But it doesn't seem to make anywhere near that much power. I used to drive an older e-7 427 without the emissions garbage on it and it would climb hills way better and the fan didn't kick on half as much.
  3. Does anyone know if there is an egr delete kit for a 2006 cx613 with an e-7 engine? The truck seams to be way underpowered. The truck seams to have to work way to hard to climb hills loaded and only gets worse when the fan clutch kicks in.
  4. I've got a 2000 cx613 vision with an e7 427 at my shop. After years of the Jakes not working we finally solved the problem. It turned out it was the switch on the clutch pedal. Now the issue we have is the jakes dont come on till the engine gets to about 1300 rpm when slowing down and down shifting. This seems a little low to me as when down shifting I go to the next lower gear at 1200 rpm. Has anyone else had this problem and how did you fix it? Is this just the Jakes being out of adjustment, a computer issue or a combination of the two?
  5. What should a compression gauge read on a 1993 ch 613 mack with an e7 400?
  6. I have a 2001 ch613 mack. The engine doesn't always turn off when you turn the key off the first time. I replaced the ignition switch but that didn't solve the problem. Does anyone have any ideas to point me in the right direction to fix the problem?
  7. I have a 93 ch613, the washer pump doesn't work with the button. I used a power probe and the pump works and also swapped out the switch but it didn't change anything. Is there a separate fuse for the washer pump or is it something in the wiring? Any help would be appreciated.
  8. I have a 1999 ch613 Mack with an e7 427 engine that keeps blowing the fuse for the ecu when I turn the key to the run position before I even start it. I'm sure it's a short somewhere, but I don't know where to start looking. Could anyone help me?
  9. Thanks again. I know about the install tool as I said, I've done the install a few times, just never pulled one without pulling the flywheel housing.
  10. I have a 1993 ch 613 mack with a 400 engine. I'm replacing the trans and noticed oil in the flywheel housing, pulled the flywheel and sure enough the rear main seal is leaking. How do i remove the old seal, I've replaced a few on the e7 engines, but was always replacing the flywheel housing also. How do i go about removing the old seal without pulling the flywheel housing off?
  11. The ch613's we have are the same way, but I think the cx613's are electric.
  12. I've got a 2001 cx613 Mack vision that doesn't switch between defrost, floor, dash and mix. I've replaced the controls but didn't fix the problem. I don't see any burnt or melted wiring. Can anyone point me in the right direction on how to fix this issue?
  13. There are two switches, one for the headlights and markers, one for the clearance lights.
  14. I've got a 2001 Mack cx613 that keeps burning out the headlight switch every few weeks. When it happens the headlights continue to work, but the tail lights, marker lights in the hood and center three clearance lights on the roof don't work. Also the dash lights go out too. I change the switch out and it works fine for a couple weeks, then the lights go out again. Can anyone point me in the right direction on how to cure this problem once and for all?
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