Patrick Saxon Posted April 13, 2015 Report Share Posted April 13, 2015 ok i just got a new truck 2001 gmc sierra 6.0 L i took my mechman g series 270 amp alt that was working fine and is maybe 4 months old off my 1999 sierra 5.3 L to swap on the new truck when i start the truck volts high like above 15 and if i rev engine volts drop and raise and bounce around all cab lights and head lights dim also does this while driving also a squeeling sound off and on while driving.i have a brand new tensioner and a shorter gates belt that is nice and tight i have big 3 done in sky high ofc with a 300 amp fuse on alt power wire ,and a xs d3400 as starting battery .i have not installed my extra batts yet witch is 3 more c&d dynastys MR400s i have not changed any thing with the electrical it has stock sterio ,speakers ,ect. any help would be great, my buddy tells me i need an elite series cause the g series wont handle more strain its getting from the 6.0 motor but it says it works on 99-04 6.0s in the description Quote Link to comment Share on other sites More sharing options...
Miguels Posted April 13, 2015 Report Share Posted April 13, 2015 (edited) wasnt there another thread on here with having the same issue? yes there is another thread http://www.stevemeadedesigns.com/board/topic/197175-problem-with-alternator-or-wiring/ Edited April 13, 2015 by Miguels Quote my logshttp://www.stevemead...-my-new-set-up/my blow through loghttp://www.stevemead...future-updates/ 96 ss http://www.stevemeadedesigns.com/board/topic/164094-96-impala-ss-build/ Link to comment Share on other sites More sharing options...
Patrick Saxon Posted April 13, 2015 Author Report Share Posted April 13, 2015 I decided to post it in the mechman section to maybe get a response from mechman as i emailed them a couple times and havent got a response just tryin to figure out my alt issues Quote Link to comment Share on other sites More sharing options...
Nathan DM Posted April 13, 2015 Report Share Posted April 13, 2015 Please give us a call in the office 888 MECHMAN or email us at [email protected] or [email protected]. We are down a few employees this week as they are on the West Coast getting the warehouse out there set up to go. We will get you taken care of! Quote Link to comment Share on other sites More sharing options...
Miguels Posted April 13, 2015 Report Share Posted April 13, 2015 Off topic but I like the west coast warehouse idea. Hopefully is near Los Angeles so I can go visit Quote my logshttp://www.stevemead...-my-new-set-up/my blow through loghttp://www.stevemead...future-updates/ 96 ss http://www.stevemeadedesigns.com/board/topic/164094-96-impala-ss-build/ Link to comment Share on other sites More sharing options...
Soccerballzs Posted April 13, 2015 Report Share Posted April 13, 2015 Mechman is the best in Service!! Love my 320. Quote http://www.stevemeadedesigns.com/board/garage/vehicle/2438-jeep-commander/I Pioneer P99RSAmpere 38002-Ampere 125/44-6.5 inch Hertz HSK XL Mids4-8 inch JL Audio ZR Midwoofer 2-5.25 Satori Mids2-Morel Tweeters, 2 Hertz Milles 3 inch on A pillars2-Hertz Silk tweeters DC Audio Level 5/12 Skyhigh Wire Mechman 320 XS Power D3100MO Funniest Thread of the Year 2013: http://www.stevemead...dy-being-a-pos/ Link to comment Share on other sites More sharing options...
MECHMAN Posted April 13, 2015 Report Share Posted April 13, 2015 ok i just got a new truck 2001 gmc sierra 6.0 L i took my mechman g series 270 amp alt that was working fine and is maybe 4 months old off my 1999 sierra 5.3 L to swap on the new truck when i start the truck volts high like above 15 and if i rev engine volts drop and raise and bounce around all cab lights and head lights dim also does this while driving also a squeeling sound off and on while driving.i have a brand new tensioner and a shorter gates belt that is nice and tight i have big 3 done in sky high ofc with a 300 amp fuse on alt power wire ,and a xs d3400 as starting battery .i have not installed my extra batts yet witch is 3 more c&d dynastys MR400s i have not changed any thing with the electrical it has stock sterio ,speakers ,ect. any help would be great, my buddy tells me i need an elite series cause the g series wont handle more strain its getting from the 6.0 motor but it says it works on 99-04 6.0s in the description This is a very strange problem. The engine size in your case is not an issue, and your friend is wrong. It sounds like you have everything done right, and since it was working fine on your old truck you must of had it right on there also. My best recommendation is to send it back for testing. Email me @ [email protected] and I will get you a return number. Thanks, Chris Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
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