Alternator help ?

808Gt

Founding Member

Apr 21, 2002

115

0

16

Hawaii

Jul 13, 2007

#1

• Jul 13, 2007

• #1

I just did my 6g alt upgrade and it is doing this weird thing were, when I start the car and let it idel it would go up to like 14.1-15.1volts? and on the gauge the needle would bounce up and down?

does anyine know what could be the problem? also one time it shot up to like 16 I think and my amp light came on dunno, I put one ground wire from behind the batt to the engine, would putting two more ground wires help it?

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jul 13, 2007

#2

• Jul 13, 2007

• #2

no. i have seen othere cars so this before. i think it is the crappy unacurate factory gauges. but adding more grounds isnt going to help or keep the voltage from spiking if it really is, and not a gauge problem.

 

808Gt

Founding Member

Apr 21, 2002

115

0

16

Hawaii

Jul 13, 2007

#3

• Jul 13, 2007

• #3

I also used a meter to check the voltage from the batt. and it also is spiking also, reads 14.1-15.7 volts...?

 

nicks95stang

New Member

Dec 7, 2004

5

0

0

Southwestern Indiana

Jul 14, 2007

#4

• Jul 14, 2007

• #4

Voltage regulator maybe?!

 

808Gt

Founding Member

Apr 21, 2002

115

0

16

Hawaii

Jul 14, 2007

#5

• Jul 14, 2007

• #5

thats what i was thinking... dunno ill go get a new one and see...

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,157

17,849

224

Massachusetts

Jul 14, 2007

#6

• Jul 14, 2007

• #6

Did you disconnect the 10G wires from both ends?? In other words, you took the two off the OEM alt, did you disconnect the other ends at the solenoid??