# 86 dodge 3/4t

**URL:** <https://community.cartalk.com/t/86-dodge-3-4t/18938>\
**Category:** Maintenance/Repairs\
**Created:** [August 31, 2008, 11:27pm UTC](https://community.cartalk.com/t/86-dodge-3-4t/18938 "2008-08-31T23:27:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![johnsixth68](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@johnsixth68](https://community.cartalk.com/u/johnsixth68)\
**Post date:** [August 31, 2008, 11:27pm UTC](https://community.cartalk.com/t/86-dodge-3-4t/18938/1 "2008-08-31T23:27:38Z")

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OK, I’ve replaced the alternator & the V-reg. still not charging. Batt WILL hold charge and truck will run off batt for about 20 min then dies. after charging w/jumpers will start & run another 20 min

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**Author:** ![wandering\_andrew](https://avatars.discourse-cdn.com/v4/letter/w/e8c25b/32.png) [@wandering\_andrew](https://community.cartalk.com/u/wandering_andrew)\
**Post date:** [September 1, 2008, 1:21am UTC](https://community.cartalk.com/t/86-dodge-3-4t/18938/2 "2008-09-01T01:21:25Z")

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Check the resistance on the battery cables with an ohmmeter. Chances are they’re rusted inside and are not letting a charge get back to the battery.

I’ve had two different vehicles show similar symptoms; replacing both the positive and negative cables, plus the battery terminals, solved the problem.

Also, check your grounds, make sure they’re good.