Logistixx

I just bought a 2005 Granite CV713, and my Lightning Bolt light comes on when under load. Took to Mack Dealer outside New Orleans, LA, and they put a computer on the truck that said it was a "humidity sensor".

I agree with the prior posts... If your dealer cannot tell you what the problem is, the DEALER may be a problem.

Either they really DO NOT know (which is not good), OR, they were blowing you off.

Name: MACK Granite CV 713 (2005)

Date Added: 27 November 2010 - 07:45 AM

Owner: Logistixx

Short Description: 2005 Mack CV713 Granite, Tri-Axle Dump with Allison 6speed Automatic Transmission, 16 foot OX Stampede body.

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Hey folks,

Just bought a used 2005 Mack CV 713 Granite tri-axle dump truck with the Allison 6speed automatic transmission. I have a few questions I hope you can answer for me...

What kind of fuel economy should I expect?

Why does the Lightning Bolt light come on when the truck is carrying a load?

What should my gauges be reading while running? Oil Pressure, Coolant temp, Trans temp, etc.

The cooling fan seems to come on a lot, and is very loud...

Why does the circle with an X light come on after I go down a grade at 55mph???

Any help appreciated.

Z

I installed a Cobra 29 CB Radio with a 100 watt Linear Amplifier to the terminals on top of my dash. When I key the microphone on the CB, the lightning bolt light illuminates, then goes off when I let off the mic. Is there a reason for this? Should I hook up the amplifier to a different power source?