Check engine light - TriStateTuners.com :: Home of Tristate Auto Enthusiast

ho1ywars · 05-16-2005, 08:08 AM

was teaching a friend how to drive stick last night, and during the process the check engine light came on. After i dropped her off, i pull in my driveway and put all my windows up and my sunroom up to go inside for the night. While doing it i noticed the volt meter droooooopppeddd hard, right down to the line its borderline red. i dont remember seeing this before, was wonderiong if it was comon in probes. if its not normal its the alternator or the battery right? Would the alternator going cause the light to come on...

WhiteXFire · 05-16-2005, 10:46 AM

Yeah, I had that happen before in my old car. You hold the button for the power windows or something and the volt meter significantly jumps. I'd get it looked at soon so if it's the alternator and not the battery you don't end up having to replace both.

ho1ywars · 05-16-2005, 01:11 PM

is there anyway i can check it...
and if i get a code reader on it, will it spit out a code telling me its the alternator...

SilverTurboRidin · 05-24-2005, 12:07 PM

negative i dont think it will....you can get rebuilt alt's for real cheap look into it

piratius · 06-02-2005, 01:16 AM

Easier way to do it...

Get a voltmeter, find the alternator ground wire & the power wire. Check the voltage. It should be ~13. If it is, have a friend load the engine (windows/headlights/whatever) If it's still 12+, then it's not the alternator. If it does go down, expect to spend time working on it

What year probe do you have? I had a 94 GT for a while.

~Brad

05-16-2005, 08:08 AM	#1
ho1ywars Tri-State Addict Join Date: Mar 2005 Location: Ewing, New Jersey Member #282 My Ride: S14, EF, 600RR iTrader: (2)	Check engine light was teaching a friend how to drive stick last night, and during the process the check engine light came on. After i dropped her off, i pull in my driveway and put all my windows up and my sunroom up to go inside for the night. While doing it i noticed the volt meter droooooopppeddd hard, right down to the line its borderline red. i dont remember seeing this before, was wonderiong if it was comon in probes. if its not normal its the alternator or the battery right? Would the alternator going cause the light to come on...

05-24-2005, 12:07 PM	#4
SilverTurboRidin Tri-State Post Whore Join Date: Feb 2005 Location: L-town PA Member #197 iTrader: (0)	negative i dont think it will....you can get rebuilt alt's for real cheap look into it __________________ Uhh used to be my dog you was in my left titty Scream RYDE OR DIE I thought you would die wit me Found out you a bitch you can't even ryde wit me Now it's a war you ain't on the side wit me To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

06-02-2005, 01:16 AM	#5
piratius Tri-State Aficionado Join Date: Mar 2005 Location: Northern Virginia Member #265 iTrader: (0)	Easier way to do it... Get a voltmeter, find the alternator ground wire & the power wire. Check the voltage. It should be ~13. If it is, have a friend load the engine (windows/headlights/whatever) If it's still 12+, then it's not the alternator. If it does go down, expect to spend time working on it What year probe do you have? I had a 94 GT for a while. ~Brad __________________ 2000 Twin Turbo v6 Mustang - My car has made a woman scream, how about yours?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Check Engine Light	DsmRob	Audi / Volkswagen Talk	7	09-20-2009 09:01 AM
NJ Inspection-Check Engine Light = Fail But What About ABS Light?	ScoobyNubieToo!	New Jersey	5	05-30-2007 06:17 AM
Check Engine Light	KawBoy	General Car Related Chat	8	03-06-2007 02:41 AM
check engine light on sti	jons05sti	Engine Management and Tuning	6	04-03-2006 09:48 PM
Check engine light	hummerman88	Engine Management and Tuning	34	03-10-2006 01:20 AM

05-16-2005, 10:46 AM	#2
WhiteXFire Tri-State Post Whore Join Date: Apr 2005 Location: Langhorne, PA Member #305 My Ride: 2007 Infiniti G35x, 2008 MB SLK55 AMG iTrader: (0)	Yeah, I had that happen before in my old car. You hold the button for the power windows or something and the volt meter significantly jumps. I'd get it looked at soon so if it's the alternator and not the battery you don't end up having to replace both.

05-16-2005, 01:11 PM	#3
ho1ywars Tri-State Addict Join Date: Mar 2005 Location: Ewing, New Jersey Member #282 My Ride: S14, EF, 600RR iTrader: (2)	is there anyway i can check it... and if i get a code reader on it, will it spit out a code telling me its the alternator...