73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: 73chevypower on March 13, 2010, 08:21:07 pm

Title: reverse polarity with jumper cables
Post by: 73chevypower on March 13, 2010, 08:21:07 pm

CRAP! reverse polarity with jumper cables on my 73 350 k20.  saw some smoke come from wires going to the firewall.  Will not crank, but fuel gauge and temp gauge read even with key off. Problem is i broke my right hand and i am limited in using a ohmeter, CRAP, any ideas where those wires are meeting at on firewall? thx

Title: Re: reverse polarity with jumper cables
Post by: Irish_Alley on March 14, 2010, 12:58:33 am

http://forum.73-87chevytrucks.com/smforum/index.php?topic=15418.0
this should help ya. someone kind of did the mistake your talking about