flickering lights

[slpin]

my lights seems to flicker a little. just goes brighter, dimmer, at the sound of the motor... whats up? im talkign about itnerior lights, but it probably does it on the headlights too.

[mschn99]

Probably want to have your batteries and altenator load tested and also check the battery terminals to make sure they are clean and tight

[slpin]

thanks for the reply
i checked the battery connection and they seem fine
i guess it has to be the alternator!

[Banshee34]

Did you have the batteries tested?

[jsmall]

If the batteries and alternator test good, then check that the headlights also change intensity. If they do not change, check your body ground (In many vehicles the interior lights are grounded through the body and the headlights are circuit grounded).

[slpin]

no, i did not check the batteries, but i did check the connection on the battery

i have not checked to see if the headlights change intensity, i will definately check that next time it does it. but i dont think they do now that i think about it, and the battery voltmeter is solid.

[jsmall]

In checking the batteries, take the truck to autozone, NAPA... and have them Load Test the batteries, this can't be done without proper tools, and they will do it for free. While you are there, have them check out the alternator. They can test both of these in the parking lot, you dont have to take them off or anything, just drive it there and ask them to check it out. Its Free, and Easy, and the best way to test both items.

[Ramsmoker]

you know, They could be flickering because it Chrismas season. Of all the vehicles I've owned, My diesels seem to need more maintanence. I have mine off a couple times a year and when I'm done I always se a change. Maybe every third oil change. Keep water in them and clean terminals, they get a hard pull when starting

[slpin]

yeah
the headlights does it too
all the lights do it

it shakes like it has an olddd points regulator

[jsmall]

Did the tests say your battery and alternator were good?