Please help my truck is dead!!

[milo12]

The voltmeter on the dash show 14 volts. Would that imply the alternator is OK?

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2008 Dodge 3500 SRW Quadcab LB 4x4 Mineral Grey, Auto, 3.73, 6.7L Cummins. Lorenz suspension. Thuren trackbar, Toyo 35 M/T. HID's. All deletes. PMT. Aeroturbine 4040XL muffler.

[torquey]

I would let it sit overnight....it should only take ten minutes of run time to charge the batteries...if it does the alternator is working just fine....sometimes things just happen...give that a try...I wouldn't lose sleep over it...you have warranty...give that a try and see what happens....and sometimes things go bad.....if it has boobs or tires it's going to give you troubles

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08 laramie mega cab 6.7 some goodies. 07.5 laramie quad cab some things fell off

[Dawg]

Originally Posted by milo12

The voltmeter on the dash show 14 volts. Would that imply the alternator is OK?

go to a local parts store and have them check it out . they will have a tester that will check your batteries and alternator and it won't cost anything and that way you might not have to fool with the dealer .

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2007 3500 mega cab ctd 6 speed manual drw 6.7 3:73 rears 4x4
had a 2004 2500 ctd 4x4 auto
had a 1996 ctd 2500 4x4 auto

[milo12]

Thanks for all the help guys.

I'm going to let it sit overnight and take it to the parts store in the morning. Maybe I'll buy a couple Optima batteries. I don't want any mystery failures when I'm out traveling.

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2008 Dodge 3500 SRW Quadcab LB 4x4 Mineral Grey, Auto, 3.73, 6.7L Cummins. Lorenz suspension. Thuren trackbar, Toyo 35 M/T. HID's. All deletes. PMT. Aeroturbine 4040XL muffler.

[CanRam]

why bother... batteries have a 1yr/20000km warranty on them. get chrysler to replace them. If they fail a load test, they will be replaced.

[rxr]

I was wondering is you have a trailer hooked up to it. The power lead to charge the trailer batteries is not isolated. I killed my batteries once by leaving a trailer light on over a long weekend while it was plugged into the truck.

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2008 2500 Megacab 4X4 CTD, 6 speed Auto, Mineral Gray. - 28TB Tahoe Toy Hauler
Utility quads, 2 kids and one awesome (and patient) wife. Priorities not listed in order of importance.

[Polaraco]

My 07.5 would discharge the batteries over night with no warning. It would go for weeks and then just go dead. Happened a few times. But when I got it, nothing lit up at all

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2008 2500 Long Horn, 4 X $, 6.7, Auto . . . Inferno Red, all the options with sun roof
16 MPG local--21 Hwy. Poor quality control. Things just keep falling off.
Premium Mopar Forum - All Bodies WELCOME from 1955 to 1973! - - - Main Picture Info Site

[milo12]

No trailer or camper hooked up.

I went to Sears and got their $13 electrical system service. This included testing both batteries and the alternator. They also checked for parasitic loads. They didn't find anything wrong. So I am totally clueless as to what could have caused the dead batteries. I am going to let the truck sit from Friday through Monday and see if the problem reappears.

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2008 Dodge 3500 SRW Quadcab LB 4x4 Mineral Grey, Auto, 3.73, 6.7L Cummins. Lorenz suspension. Thuren trackbar, Toyo 35 M/T. HID's. All deletes. PMT. Aeroturbine 4040XL muffler.

[mulehunter]

l have seen two trucks with the same problem that you have it has been the instrument cluster they were shorted and had to be replaced

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work for dodge over 38yr as tech & partsman 07 6.7 4x4 auto