lights dim....whats wrong

[wcpierson]

dashboard and headlights dim until i hit boost in first gear...whats wrong....alternator has only 500 miles on it and fusible links are all good.....any ideas?

 

[droppinbottom]

Have you had it checked? I know most alterntors dont put out alot untill they get turning(higher in the rpm range)

 

[Black91TSiAWD]

Id try tightening the alt belt, or replacing it altogether. They stretch and make it impossible to keep tight. Might be it.

 

[talondude4]

Mine also does this, mine goes away after i hit 3k rpm(dashlights go out).

 

[groundPork]

bad connection? loose belt? need new batt? defective ALT? HMMMM...

 

[Ultimatedsm]

Check your voltage regulator and your grounds. Do an alternator test and see whats the voltage at idle, then put some load on it by turning on your accessories. If the voltage drops less then 13V with full load, your regulator is no good. You need a multi-meter for this test. You can also test the condition of your battery and see if it holds its charge, a bad battery can stress out an alternator.

 

[groundPork]

Check your voltage regulator and your grounds. Do an alternator test and see whats the voltage at idle, then put some load on it by turning on your accessories. If the voltage drops less then 13V with full load, your regulator is no good. You need a multi-meter for this test. You can also test the condition of your battery and see if it holds its charge, a bad battery can stress out an alternator.

OOoooo... DSM skills... almost as important as karate skills, dancing skills, and internet skills... hahaha! j/!k!

 

[wcpierson]

Check your voltage regulator and your grounds. Do an alternator test and see whats the voltage at idle, then put some load on it by turning on your accessories. If the voltage drops less then 13V with full load, your regulator is no good. You need a multi-meter for this test. You can also test the condition of your battery and see if it holds its charge, a bad battery can stress out an alternator.

alternator and all belts were changed about 500-700 miles ago...ill check the voltage at idle and then check it at idle with some accessories on and let you know....where is my voltage regulator anyways and what does it look like? and how much would it cost to replace

 

[Ultimatedsm]

Well to replace your regulator, you have to open up your alternator, it is internal. It isn't very hard and I think its a $40 dollar part. Well do the tests for sure, maybe your alternator is fine, but your grounds are bad.

 

[wcpierson]

Well to replace your regulator, you have to open up your alternator, it is internal. It isn't very hard and I think its a $40 dollar part. Well do the tests for sure, maybe your alternator is fine, but your grounds are bad.

yea actually my friend disconnected a ground that was attached to my downpipe so ill hook it back up and see what happens

 

[Ultimatedsm]

Wait how did I discount the ground on your downpipe? I am sorry that didn't make any sense.