hey all,my 93 d 150 5.2 ,dash lights,and possible all my lights have a slight flicker to them when at idle in gear. i had a problem with the battery,bad cell,so i replaced it. tomarrow i will pull the cables,alt. and replace them.
does anyone think this will cure the problem?? could the voltage regulator in the alt. be on its way out?? thank you

 

have you checked the ground connections? have you check the voltage at the battery with the truck running and the lights on?

 

well i changed everything battery,alt. ground & positive cables,just out of personal preforance excep for the battery it was bad.
with the lights on at idle i still have a dim/bright type flicker,with lights off at idle in gear i see battery gauge not steady moves 1/8 of an inch side to side. any ideas?? if its a ground where to look?? thank you

 

anyone?? thanks

 

have you check the voltage at the battery with a multi meter to see if it is fluctuating? have you tried running a ground wire straight from the battery to the lights? if running a ground wire straight to the light makes no difference then maybe you need to install some relays.

 

i was thinking maybe its the light switch cause its kind of stiff when i pull it out to turn them on. light switch?? could that cause this problem??
thank you

 

i just don't see how it could cause it to flicker. you still haven't answered the previous questions. i know you changed the ground but did you check the grounds to the body. there is usually a ground from the battery to the rad support. lights are usually grounded to the body.

 

the ground from the battery to the rad. support is also new,sorry did not get a chance to check voltage,to busy getting a/c parts ordered and put in,among other things.

 

the only grounds i see are on the rad.support for the lights,i did take them off about 6months ago to clean the connection. but this just started out of the blue. its just annoying right now,i will look ferther into it when i get some time. thank you