Too much amp output

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Master Asylum

Silver - Posts: 400

Joined: November 05, 2004

Location: United States

Posted: February 18, 2005 at 4:25 PM / IP Logged

I recently got an 180 amp installed in my 3.1 Monte Carlo by certified professionals. After the installation they measured it and it said it was putting out 18.22+ amps. They said this could fry the computer. Anyone know what's up with it, or what I can possible do to make it safe for my car?

1998 Monte Carlo w/

Eclipse CD8454

2xRockford 5.25" Power 2-way T152C

2xRockford 6"x9" Punch 3-way FRC4369

1xMemphis 16-MCH1300 5-channel

2xKicker 12" L5 Solobaric-2 Ohm

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: February 18, 2005 at 4:27 PM / IP Logged

You mean 18.22 volts, right? Yes, that is too high and you shouldn't run your car with that. I bet your car requires an alternator with internal voltage regulator and your new HO unit doesn't have one. Did you get a model designed for GM cars?

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Master Asylum

Silver - Posts: 400

Joined: November 05, 2004

Location: United States

Posted: February 18, 2005 at 4:38 PM / IP Logged

I live about 5 miles away from my work, I was wondering if it would be safe to drive the car home even while it's putting out this many volts. Will it fry the computer or screw anything eles up?

1998 Monte Carlo w/

Eclipse CD8454

2xRockford 5.25" Power 2-way T152C

2xRockford 6"x9" Punch 3-way FRC4369

1xMemphis 16-MCH1300 5-channel

2xKicker 12" L5 Solobaric-2 Ohm

KarTuneMan

Platinum - Posts: 7,056

This member consistently provides reliable information

Joined: December 14, 2004

Location: Isle Of Man

Posted: February 18, 2005 at 5:29 PM / IP Logged

Don't drive the car.....bad things WILL happen.

Think about the sensativity to some of the aftermarket things you've put in cars in the past.....now imagine that from an OE standpoint.....stuff wil die, don't take the chance. DYon nailed it...no voltage regulation.

The first thing to go will be your battery, that will make one hell of a mess. You seen an overcharged battery ain't ya?

Master Asylum

Silver - Posts: 400

Joined: November 05, 2004

Location: United States

Posted: February 18, 2005 at 5:44 PM / IP Logged

What would be the easiest solution to my problem?

1998 Monte Carlo w/

Eclipse CD8454

2xRockford 5.25" Power 2-way T152C

2xRockford 6"x9" Punch 3-way FRC4369

1xMemphis 16-MCH1300 5-channel

2xKicker 12" L5 Solobaric-2 Ohm

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: February 18, 2005 at 5:53 PM / IP Logged

go to an autoparts store and ask for a external voltage regulator they should have a few that will work just fine

2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

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furflier

Copper - Posts: 236

Joined: June 14, 2004

Location: United States

Posted: February 18, 2005 at 6:30 PM / IP Logged

If you just want to get it home disconnect the alt. your battery should be strong enough to get you home.

Master Asylum

Silver - Posts: 400

Joined: November 05, 2004

Location: United States

Posted: February 20, 2005 at 2:41 PM / IP Logged

Yeah well my battery is either fried or dead. I'll find out tomorrow hopefully(Had it towed to the shop that put the alternator in.) My Antilock light came on leaving work, supposedly that means that the antilock system won't work now. Should I have them run some sort of diagnostic to see if any other systems were affected? Any clue if that is a sign it overloaded the system?

1998 Monte Carlo w/

Eclipse CD8454

2xRockford 5.25" Power 2-way T152C

2xRockford 6"x9" Punch 3-way FRC4369

1xMemphis 16-MCH1300 5-channel

2xKicker 12" L5 Solobaric-2 Ohm

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: February 20, 2005 at 3:14 PM / IP Logged

I would have them run a full diagnostic and raise hell with the shop until they fix EVERYTHING that may have been damaged by this over-voltage condition. This could mean a new car depending on the extent of the damage. Any reputable shop should know better than to put an unregulated alternator into a car that requires a regulated model. If your shop does not have the gear to properly test every system in your car, have it towed to a Chevy dealer and charge the shop whatever it costs to fix. If they refuse to pay it's laywer time. But that's just me...

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Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: February 20, 2005 at 4:00 PM / IP Logged

If they new about the over voltage problem, they should not have let you take the car unless you sign a waiver or something....you didn't sign a waiver saying you were happy with the work now did you?

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

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