another bad trans or electrical?
Thread Starter
Registered User
Joined: Mar 2009
Posts: 18
Likes: 0
another bad trans or electrical? 00 ss w/texas speed 408 yank ss4000. put together with trans(60e) built for nos. car would not shift properly and eats alternators. sometimes charges sometimes doesnt. latest alternator is from dealer,w/same symptoms.pulled trans after 200mi and sent back to builder.
He claims trans was right when it left his shop the first time but re-built for free to save face. after re-install with fresh converter and flushed trans cooler it "chatters" on moderate acceleration in low gear and slips on moderate acceleration in upper gears.
Any one find electrical probs causing this? Ran w/tech 2 hooked up and data looks ok. no codes,shows trans shifting properly. only have 7mi. on new trans and converter. Afraid to ruin another trans.
He claims trans was right when it left his shop the first time but re-built for free to save face. after re-install with fresh converter and flushed trans cooler it "chatters" on moderate acceleration in low gear and slips on moderate acceleration in upper gears.
Any one find electrical probs causing this? Ran w/tech 2 hooked up and data looks ok. no codes,shows trans shifting properly. only have 7mi. on new trans and converter. Afraid to ruin another trans.
Thread Starter
Registered User
Joined: Mar 2009
Posts: 18
Likes: 0
also ate another alternator today. tech2 had been showing l-terminal active with varying voltage then voltage wint to 10vdc and l-terminal shows active/inactive switching back and forth as fast as tech2 display will allow 3-4 times per second.
Thoughts oppinions ideas?
Thoughts oppinions ideas?
Thread Starter
Registered User
Joined: Mar 2009
Posts: 18
Likes: 0
checked harness that runs across fans to battery/heavy gauge wires. pulled wires from the loom and they looked ok. when alt does charge it only reaches 12.5 or so mostly sometimes charges over 13.5 but never over 14.
Trending Topics
CHECK YOUR GROUNDS!! 90% or better of electrical problems are due to bad grounds. You can do a voltage drop on each of them with a simple multi meter. Put in DC voltage mode and put one lead on the stud or bolt and one lead on the wire crimp end. Should be less then 100-150ma. Alot of the grounds start to corrode inside the terminal and you can't see this visually. CHECK THEM! Good luck.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Looked at the Alldata for my 6.0/Hummer engine. There are 2 wires to the alt, from the PCM. 1 is for the light, and the other is the exciter circuit.
If that circuit has insufficient power, will that cause the low charge rate?? [Not sure about this]
Has this been checked? My engine is not running, but I have an 07 truck, and can check to see what voltage is on the circuit..
If that circuit has insufficient power, will that cause the low charge rate?? [Not sure about this]
Has this been checked? My engine is not running, but I have an 07 truck, and can check to see what voltage is on the circuit..