On ours the regulator went out and it actually overcharged the battery , (burned up the electrolyte) was putting out 15.4 volts the first sign was that we went through 2 sets of headlights in a month 2 different brands .
It is built into the alternator.
the battery dies, Belt replacement
There are several things that can cause your 2004 Chevy Trailblazer headlights to keep going out. The most common cause is a loose or corroded ground wire.
Where is the starter on a 2004 Chevy trailblazer.
If your Chevy trailblazer 2004 gauges are not working, check your fuel pump.
The 2004 Chevy Trailblazer holds 7 quarts of oil.
where is map sensor on 2004 trailblazer
It's behind the alternator; screwed to the block right above the thermostat. Good luck removing it. You need to remove the alternator.
I need a diagram for the vacuum lines on a 2004 Chevy trailblazer
remove and replace engine coolant temperature(ect)/chevy 2004 trailblazer
105mph
If the air vents of the Chevy trailblazer 2004 are not blowing air, have the fuel pump checked.