Dash Lights flickering...need new alternator?
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 768
Likes: 6
From: Newport Beach, Southern California
Dash Lights flickering...need new alternator?
Hi,
My 42K miles LT4 runs like a champ but noticed that dash lights are flickering as i press gas pedal. Also dash lights dim when i turn head lights on.
My first guess would be the alternator going bad.
Any suggestions?
If alternator is the culprit should i go for a stock Delco replacement?
How much for a stock alternator?
Thanx
My 42K miles LT4 runs like a champ but noticed that dash lights are flickering as i press gas pedal. Also dash lights dim when i turn head lights on.
My first guess would be the alternator going bad.
Any suggestions?
If alternator is the culprit should i go for a stock Delco replacement?
How much for a stock alternator?
Thanx
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Originally Posted by 2blklt4
My 42K miles LT4 runs like a champ but noticed that dash lights are flickering as i press gas pedal.
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Dash lights dim with the headlights turned on if the cockpit is dark, this is normal. Dash lights flickering when accelerating is not normal and is most likely due to an intermittent connection to the dash. Alternators do sometimes have a voltage regulator that oscillates but when they do, the flickering is constant.
Intermediate
Joined: Jul 2005
Posts: 43
Likes: 0
From: Greensboro North Carolina
Could be a connection however most of the time it is the alternator charging system going bad. When you turn on headlights there is a normal voltage drop which kicks the alternator in to put out more amps and volts. As the charging system ages parts wear and they dont perform like they used to. Get the charging system checked and if it passes look toward connections. Could be any number of things like corroded cables or loose cables or the alternator voltage regulator going out or even a weak cell in the battery.
