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1992 dodge b250 van won’t start

 
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Just Try It1 Just Try It1
Moderator | Posts: 2796 | Joined: 08/14
Posted: 07/12/18
09:32 AM

your battery cable end or the battery post has a thin layer of hard scale on it.. when electrons pass thru the surface of lead.. with some moisture and normal atmosphere which has oxygen. the surface of the lead turns to lead oxide.. a darker gray crispy surface that does not allow the electrons to travel thru it..

hot water.. followed by a stainless steel wire tooth brush.. or almost anything to scrape or scrub the surface clean.. may get you going again..

could the battery have failed?  its really hard to tell. but when you can't jump start the engine with a jump.. you have a dirty cable situation..




the corrosion could be up inside the cable strands too..

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corrosion can also look like this..

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Just Try It1 Just Try It1
Moderator | Posts: 2796 | Joined: 08/14
Posted: 07/12/18
09:45 AM

i should also mention that you might check with either a test light or a volt meter..

this test..

The Moderators voltage drop test linked to open full page click this link.. the modeator


this is the same test  i linked directly above..
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you can perform this test using a test light...

only test 1 should cause the light to come on.. while somebody is turning the key..

if the test light turns on during tests 2 thru 6.. you have found the circuit that has issues..

doing so with the volt meter..  engine off headlights on.  again... only test 1 should show any voltage...  if you get any voltage on tests 2 thru 6.. that shows there is a restriction and more voltage on one side of the place you tested than on the other.. remember.. volt meters and test lights only show a difference in voltage between the places you are measuring at..  

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