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volt meter

Discussion in 'Chevy Trucks' started by harrison6jd, Jan 27, 2014.

  1. harrison6jd

    harrison6jd Member
    Messages: 38

    how far does your voltmeter drop when you activate a plow function? i have an 03 2500hd with a duramax and it drops to 9 or close to it. normal? i have a minute mount 2 on the truck.
  2. Fantastic

    Fantastic Senior Member
    Messages: 187

    I've got an 03 GM 2500HD 6.0L and mine goes down about the same or more... My radio will cut out from time to time, lights dim a lot, heater fan slows down, etc... Everything is usually right back to par after a short drive. I have a Meyer E-47 with 7.6 plow.
  3. myzx6

    myzx6 Member
    Messages: 90

    I have an 02 2500hd with the 8.1l that I added a second battery to. 7.5 mm1 and my volt gauge drops to 12. Do u have your positive and negative hooked straight to the battery. I had my positive tied into the distribution block when I first bought it and my voltage was dropping about to where yours is, swapped to battery terminal and saw a huge improvement
  4. harrison6jd

    harrison6jd Member
    Messages: 38

    yes,they are hooked up directly. maybe its always been like this but i just happened to notice it the last time i used it. its only been on for 2 seasons. batteries are new in 2012 but the alternator is about 4 years old.
  5. leigh

    leigh 2000 Club Member
    from CT
    Messages: 2,342

    Can't always trust dash gage.Put a real voltmeter on the battery while someone lifts plow,might not be as bad as it seems.
  6. Mxrider069

    Mxrider069 Member
    Messages: 85

    Ive got a 07 lbz dmax with 2 new batteries and 2 alts(i added the second) on my edge cts moniter it will never drop below 14.1 all night with all accesories on- strobes,defrost,heated seats,6 back up lights. I suggest doing the dual option. It can be done for roughly 200.
  7. forwhlr989

    forwhlr989 Member
    Messages: 36

    I use to have the same plow on my dmax and it dropped about that low. If i turned the heat way down it helped some. as long as everything went right back to normal it never bothered me.