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2721955meteor
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Group: Forum Members
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ianmatt (11/23/2016)
I tried checking all grounds and ran a new ground from intake to cab just to have extra. seemed to help a tad. The battery has a cold crank of 550. Thats low right? I drove the truck to work today so i can go grab a pic of the battery if you guys want. not so charley,a deep cycle will start the engine but will show low charg after heavy load, as deep cycle ar desighned to run a rv furnace all night etc,not desighned for a car or truck. example if you try and charge a deep with a regular car battery the alt will sence full charge befor the deep cycle is charged and cut out. the chart to min.. another example in real cold weather deep cycle will fail to turn the engine fast enough to started amp -25 etc.
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Talkwrench
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charliemccraney
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think you can fit a battery with more cca. However, if the engine starts, then the battery is not a problem in that respect. I wouldn't spend money on a battery simply because of that. If the grounds check out okay, make sure all of the connections are good, no corrosion frayed wires, etc. Once that is verified, start your troubleshooting of the battery and charging system.
Lawrenceville, GA
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ianmatt
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Group: Forum Members
Last Active: 2 Years Ago
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I tried checking all grounds and ran a new ground from intake to cab just to have extra. seemed to help a tad. The battery has a cold crank of 550. Thats low right? I drove the truck to work today so i can go grab a pic of the battery if you guys want.
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paul2748
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Check the output of the charging system by using a multi-meter or similar and checking voltage output at the battery. Around 1500-2000 rpm's an alternator should be putting out 13.7 to 14.5 volts. At regular idle it may be a little lower.
54 Victoria 312; 48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ
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Talkwrench
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2721955meteor
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you sead the battery is from a rv,is it the house battery ,if so it should be a deep cycle that being the case that is the first thing to change. deep cycle batterys ar intended for long periods of low draw,not recomended for car or truck. a deep cycle takes longer to charge and after starting the truck for tests alternator sences low charge and load the engine at idea..
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MoonShadow
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Are the alternator brackets powder coated or newly painted? The alternator ground through them and the block to the chassis. I would find all the ground straps and the negative cable connection and take them apart. Make sure the contact surfaces are metal to metal. Where is your battery mounted? If you don't find a ground connector on the block add one. Usually they bolt to one of the not used 3/8 bolts on the intake next to the accelerator linkage mount. Run a ground from there to a bolt on the firewall. I run my battery in the trunk of my Vicky. I used heavy gauge cable for the positive side and grounded to the frame at the rear. All connections were scraped for good contact. I see no drop in the charging circuit tested at the alternator and at the battery.
Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.
 
MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire
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charliemccraney
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I won't be much help with that. My truck has not been stock in that regard since I've had it. Even so, if yours is a different year or model it may not be the same. The negative battery cable goes somewhere, so that is one. There should be one from the block to the body or frame. Might be others. Which vehicle and year so others might be able to help?
Lawrenceville, GA
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ianmatt
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Group: Forum Members
Last Active: 2 Years Ago
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I am curious if its possible for you to provide some specifics as to where to look / check the grounds? I am not good with electrical.
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