Question about 2000 Pontiac Grand Am GT

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2000 grand am se not charging, what could be the problem? changed battery and alternator, checked #49 fuse in the fuse block.

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Check the voltage at the alternator, then the wire going to the battery, you should be getting 14.4 volts or thereabout, inspect the grounda at the battery and frame and engine, then make sure the alternator is grounding on the engine

Posted on Jul 29, 2010

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1 Answer

Why isn't alternator charging battery?


Check all connections, remove any corrosion. Check fuses. Check condition of wires. Need more info about what is happening. Does it start? Does the battery hold a charge?

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2000 grand am won't charge new alternator battery three months old


Need to have a meter to check continuity between new alternator and the new battery. Make sure all connections are tight. May have open fusible link which a meter will reveal. May have bad voltage regulator in the ECM which should show a code. I do not like relying on dash gauge, they can be inaccuate. Time to have a mechanic check for codes and continuity.

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1 Answer

Battery wont hold a charge. it takes a charge, i drove it around the block, kept it running in park and when i turned it off it wouldn't turn back on.


First, it can damage your alternator to try to charge a dead battery by just driving or running the car. The alternator is designed to maintain the state of charge already in a battery.
Old (pre mid 60's cars with generators could do that).
Have your battery charged and tested. if it checks out, then have the charging system in the car tested. On most newer Jeeps, the regulator is not in the alternator it is part of the computer. If the alternator checks as good but it is not charging, that may be why.
Hopefully you just need a new battery.

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1 Answer

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Who told you the alternator is O.K.? How much voltage is it producing? Take a volt meter , start car & make sure the alternator is charging properly. Attach meter to the posts & see what it reads. All readings over 13.2 to 14.5 O.k. less means new alternator. Also make sure battery cable connections are clean & tight.

Jan 07, 2010 | 2001 Pontiac Grand Am SE

1 Answer

Battery Light is On


The alternator is not charging the battery. Could be alternator, voltage regulator (which is usually in the alternator) , dirty/loose connections. First I would inspect all relevant electrical connections, clean & tighten. If no change -- replace alternator.

But be sure to fully charge the battery before you run the new alternator (follow alternator installation instructions).

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Changed alternator in 2000 mpv battery comes on and off


Check the large fusible link labeled ALT in the under hood fuse box. If this fuse gets blown, the alternator wont be able to charge even if it IS new,because the ALT circuit is open.

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1 Answer

1990 nissan se charging problems


check the power wire from the alt and check all of the grands on the car

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1 Answer

Alternator not exciting


Hi ' If you changed the battery and alternator,
Check the voltage at the red wire on the alternator. if there a less than 12 volt.
Check the fuse link, that goes in the starter positive bolt.
If the fuse is bad replace and recheck the charging system.
IF charging normal. good.
If not, che the fuse in the fuse box, "" cluster".
If the fuse is blow out, replace. and check again.

OK. I hope this work for you.

Jul 06, 2008 | 2000 Chevrolet Astro

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