alternator/voltage?

[lincolnlocker]

on a hard run my battery light will flicker so i started looking at the voltage on the back of the alt and at the batteries... when i start the truck and check voltages its 14.50ish on the back of the alt, but only 14.30ish at the batteries. cleaned all the terminals up real good.

is this drop normal or should i start looking at other stuff?

 

[Atsah]

I would think your alt is working okay.. How old are your battery's?

 

[kyle43335]

on a hard run my battery light will flicker so i started looking at the voltage on the back of the alt and at the batteries... when i start the truck and check voltages its 14.50ish on the back of the alt, but only 14.30ish at the batteries. cleaned all the terminals up real good.

is this drop normal or should i start looking at other stuff?

Check the fuseable links on the small cable coming from the pass side battery.

Nvm 7.3..

Those fuseable links are on the starter realy on the inner fender.

 

[lincolnlocker]

1.5 yrs die hard platinum p2's

 

[PDT1081]

on a hard run my battery light will flicker so i started looking at the voltage on the back of the alt and at the batteries... when i start the truck and check voltages its 14.50ish on the back of the alt, but only 14.30ish at the batteries. cleaned all the terminals up real good.

is this drop normal or should i start looking at other stuff?

Since the light isn't flickering at idle, you need to hookup a gauge and see what it is on a hard run when the light starts flickering.

 

[Zmann]

sounds good higher than mine has ever been and I run a DC Power alt

and a bat light can also flicker at an overcharge

never hurts to get each batt load tested however

 

[lincolnlocker]

how bout voltage regulator? at one point today while driving threw town my volt gauge was just above 12.5v and that was after it was running for a few min and not bat light.... stopped to wash the truck and when i started up it went back above 14 volts shortly after.

 

[Atsah]

Did you check to make sure all your connections/grounds are all tight?

 

[lincolnlocker]

everything is tight

 

[Zmann]

how bout voltage regulator? a.

internal

 

[kyle43335]

clean your block grounds...

 

[lincolnlocker]

ok, ill clean them tonight after work..

 

[lincolnlocker]

cleaned and tightened, then drove it, no flickering light.. one ground on the block didnt have the washer that gouges the seel for a better connection. prolly auta find one of those.... so between the slightly loose positive post and a bad ground im thinking one or both was the culprit.

 

[kyle43335]

cleaned and tightened, then drove it, no flickering light.. one ground on the block didnt have the washer that gouges the seel for a better connection. prolly auta find one of those.... so between the slightly loose positive post and a bad ground im thinking one or both was the culprit.

awesome!! glad it worked out!!

grounds are so important on electric engines. you cant imagine the ***ed up chit they do,when the grounds are crap!!

 

[TARM]

The condition of the ground is a culprit is some very weird problems with any electronic controlled engine.

 

[lincolnlocker]

so far so good... drove it for a while tonight...

 

[TrailerHauler]

Bad or loose grounds on these have caused some weird problems in the past.

 

[Atsah]

Bad or loose grounds on these have caused some weird problems in the past.

Yes they do and that is the first thing I tell people to check before they start replacing parts..

 

[lincolnlocker]

still need to find that grooved washer that gouges into the block to make better connection's. the one on the passenger side is missing.

 

[kyle43335]

as long as theyre clean. i wouldnt worry bout that washer...