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Check the negative or ground cable to be sure BOTH ends are clean and tight.

That is where to start. ANY thing still using power with the keys out, will kill your battery in time. Radios ANY light left on, boosters ETC

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Q: WHY does your 98 Monte Carlo goes dead after you bought a new battery and alternator?
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87 Monte Carlo alternator is good still wont charge battery?

If the alternator is good then the battery is bad.


The Volt light is on in 1999 Monte Carlo and it will not start?

Dead or weak battery? Alternator not charging battery properly?


Why does your battery keep draining on your 2000 Chevy Monte Carlo?

Defective alternator, loose alternator drive belt, dead cell in battery, or something is on pulling power from the battery.


If you disconnect the battery cable on your 1972 Monte Carlo and it dies does that mean th alternator is bad?

Generally, yes.


Where is the Monte Carlo battery located?

The battery on the Monte Carlo is under the hood. It is under the washer fluid bottle, which has to be removed to reach the battery.


What is the meaning of an illuminated voltage light on a 1999 Chevy Monte Carlo?

It could indicate poor battery health or a problem with the alternator.


Why does your battery gauge keep dropping to zero on your 2003 Monte Carlo after you have just replaced the battery?

Bad alternator not charging battery? Bad voltage regulator? Blown fusable link?


Where is the voltage regulator on a 1979 Monte Carlo?

It's inside the alternator.


You have a 99 Monte volts light came on and you still drove then the lights flashed and everything is dead charged battery nothing new battery nothing alternator?

It is the alternator. I have a 95 Monte Carlo and this has happened to me twice in the 3 years I've had the car. Each time I had to have the alternator replaced. The first time I had a problem with the alternator I took it to a shop and had it fixed. Two years later the alternator went out again without warning. That time we took it to a different shop and bought a new alternator with a three year warranty so it'll be free if it goes out two years later again.


Where is the battery located in a 1989 Monte Carlo?

In engine compartment


What is the problem on a 2000 Monte Carlo if you turn the ignition it clicks and then doesn't do anything else after that until you let it sit a while or reconnect the battery?

sounds like the starter or alternator


Why does the battery light go on and off in my 2002 Monte Carlo. Every time the battery light comes on the voltage drops. When the light goes out the voltage comes back. What could be wrong?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt.