Low voltage at idle/ in general NEED HELP!!!!

[dirtye30 10+ year member]

turn up your idle a little

not a chance. 1000 rpm idle is enough. like i said in my first post, the car while driving only runs ar 13.7 volts.

 

[jaco 10+ year member]

your voltage regulator is inside of the alt.

the only option is to go to an alt shop and have them match you up a smaller pully for the alt and put it on the alt.

so it will spin faster at idle.

BUT that car comes with a cs130 modle alt. and those should put out a strong

14.4 at idle.

your alt. is probally bad or weak.

 

[audiobahnuser18 5,000+ posts]

Oh alright. Hmm.....im trying to remember mine i actually got tested cause my friend helped me i can't remember how he did it off hand sry man.

 

[dirtye30 10+ year member]

your voltage regulator is inside of the alt.the only option is to go to an alt shop and have them match you up a smaller pully for the alt and put it on the alt.

so it will spin faster at idle.

BUT that car comes with a cs130 modle alt. and those should put out a strong

14.4 at idle.

your alt. is probally bad or weak.

i just had the factory alternator in and rewound because i thought that would correct the problem. that was 5 days ago. its not even that it doesnt hav enough power at idle. ive said a couple times in the thread already that even while driving its only at 13.7 not 14.x. i also said that i had it load tested and it came up good.

 

[fbi90909 5,000+ posts]

ok hm.. GM cars keep their head lights on at all times right? well most do.. which would be just dim but still on yet not sufficient for night time driving. try this.. turn your night time head lights on. and let the car idle out for a few minutes. you might see a difference and voltage might go up to your 13.x..

on my civic if i drive w/o my headlights on or A/c running my voltage stays around 12.X untill i reach a speed limit of 40+ then my voltage ups to 13.X.. at idle i drop down to say a 12.2-12.4

but if i turn on my headlights only with my A/C OFF. my voltage goes up to about 13.9.. at w/e speed limit, even if idle at a stop light or so.

if i drive with my headlights OFF and my A/C ON my voltage jumps up and down. but usualy stays near 13.5 but jumps around alot so i don't really use the A/C. plus gas prices ****.

some things in some cars cause an alt to kick in.. soemtimes the vehicles set to not need the extra battery power when it's not in demand. per-say when idling.

 

[dirtye30 10+ year member]

my gm is an 89... theres no daytime running lights. and LOL at a civic driver complaining about gas prices!!!

 

[fbi90909 5,000+ posts]

yeah but i drive around ALOT.. and i got a heavy foot :/

 

[dirtye30 10+ year member]

i still havent found a solution.

 

[fawd06 10+ year member]

did you check the alternator plug? make sure its getting a good conection

 

[dirtye30 10+ year member]

did you check the alternator plug? make sure its getting a good conection

its in there good.

 

[Andrizzle 10+ year member]

perhaps you missed or attatched one of your big 3 runs to the wrong spot...make sure the neg batt terminal is grounded to chassis where no paint is etc...

 

[NX2000DET 10+ year member]

... and LOL at a civic driver complaining about gas prices!!!

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[NX2000DET 10+ year member]

how far did you get with checking the regulator?

 

[dirtye30 10+ year member]

perhaps you missed or attatched one of your big 3 runs to the wrong spot...make sure the neg batt terminal is grounded to chassis where no paint is etc...

Big 3 is moot in this disscussion because all im trying to do is have my car run at the correct voltage WITH NO ACCESSORIES. the alt upgrade and big three make no differance because the car is not doing what it should do from the factory with factory parts. i upragded the parts so it DEFINATELY should be doing what it was designed to do.