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Ok so I changed out the alternator last night to a OEM one I had laying around with the stock pulley. No change in the volt flutter. It seems that sometimes the volts are steady at close to 14v then out of no where after a throttle blip the volts will go down to 12v or below then back up and...

Fuel Pump So I got Lazy and brought the Tahoe to the local mechanic for trouble shooting. After a day and a half they said fuel pump (problem was truck was hard to start and sometimes had to spray starting fluid in then started right up and ran ok) they put a new fuel pump assembly in and never...

If that player has a CD just check to see if the antena/amp power wire works when playing CD. When i first got my truck the back factory powered speakers cut out when playing a CD because the head unit shut power off to the power antenna wire thus turning off the amp. easy fix though. biggest...

Thanks for the information. I tested the map and got 5.1 volts with key on at harness. I got 1.27 backprobed with engine on. I believe that is with-in spec. I was just thinking the high voltage the truck was getting might have made the ecm put out more than the 5v to the map? or the map is...

Hey all, 1995 chevy tahoe, 5.7 V8, 4x4, 4 door, LS.... Ok have had some electrical issues with the tahoe. brought it in to get checked and the mechanic said all tests he performed with the snap on scan tool read ok, the drop in voltage at a stop light were normal. all grounds were ok and...