Question about 1988 Chevrolet Suburban
I will be driving down the road and my volt meter will read close to 14 volts and then all of a sudden I will feel a slight power loss and the meter will go down to about 9 volts. Then out of the blue is will jump back up to normal. This usually happens when I am driving with the lights, heater, or radio on. I took the altenator off and took it to Autozone and they told me it was fine
Chk. all your connections to the battery make sure there clean and tight, and also to the starter, and all other ground connections like from frame to engine to body. I know you said auto zone chk. it and said it was ok but it still sounds like the internal regulator is kicking in and out to me, but a loose connection could cause that to.if you chk. everything i sugested, and find no problem, find a shop that specializes in alt. rebuilding and have them chk. it they know a little more than auto zone does, its there business.
Posted on Apr 14, 2009
You could have a dead cell in your battery or one or 2 cells that are going bad, its sometimes difficult to check depending on what kind of battery you have in the vehicle. Another option is to check on all you battery leads and wires that run from the alternator, make sure they are free from corrosion and grime. They need to be tight enough that you can get no movement from them with your hands.
Posted on Apr 14, 2009
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Posted on Jan 02, 2017
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