L31MaxExpress
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98 in some places.pre-1996, sir.. the gmt400's were OBD1, TBI, all the way thru 1995.
Richard
97 L31 TBI
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98 in some places.pre-1996, sir.. the gmt400's were OBD1, TBI, all the way thru 1995.
Richard
Outside U.S. market, you mean, right? Pretty sure fed requirements were ODB2 by 1996.98 in some places.
97 L31 TBI
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Outside U.S. market, you mean, right? Pretty sure fed requirements were ODB2 by 1996.
Lots of stuff different once you get outside the U.S. They still made GMT455 3500HD's in Mexico through 2006, possibly 2007. 6.5td's and 8.1's
Richard
A lot of things got weird in the mid-late 90s starting at 8,600 GVW.Outside U.S. market, you mean, right? Pretty sure fed requirements were ODB2 by 1996.
Lots of stuff different once you get outside the U.S. They still made GMT455 3500HD's in Mexico through 2006, possibly 2007. 6.5td's and 8.1's
Richard
Funny you say that the ground should not be on aluminum. Auminum is an excellent conductor provided it is clean and not corroded. My 97 Express van has always had the ground cable on the lower bolt of the aluminum alternator bracket since day 1. The stock negative cable, GM replacement single piece positive cable and stock starter crank over my 11:1 383 with 230 psi of cranking compression effortlessly.I agree with viking dude,. poor ground,. the connection warms up makes better contact you are good to go,. check your ground connection is not going to an aluminum anything,. get it on to shiny clean piece of cast block or head,. if that didn't work for me i'd buy new battery cables