why is my car still running off the battery? 2000 grand am v6

Asked by Sep 05, 2011 at 04:17 PM about the 2000 Pontiac Grand Am

Question type: Maintenance & Repair

i have changed my alternator, my battery and my starter on my Grand am V6 the starter doesnt sound right and my car is running off the battery still what is going on??????

6 Answers

3,255

was the battery FULLY CHARGED when you changed the alternator ? If not , a less than fully charged battery will fry a new alternator the first time you start it after replacing the alt . reason ? too much current draw to operate all systems plus put 40 or 50 amps back into the battery . The antilock brakes alone take over 50 amps . onboard computer : 35 amps cooling fans 40amps ,AC, 20 amps . get the idea ? your new alt is probably fried . Charge the batt fully before replacing the next one (alt)

3 of 3 people found this helpful.
485

Funny this should come up, I am literally sitting on my front porch right now after installing a new alternator ('01 BMW 540i 6 speed) waiting for the charger to finish. I was searching google for anxious to see how close the charging is. Got bored after google was inconclusive... Using a black and decker multi cycle charger that went from like 5.7 amps to now 1.9... jobs been done for over an hour. I am however less inclined now to "see if it will work" or if it's "close enough". Not impatient to replace another alternator though. Saved myself over $800 vs. the local indy DIY. Now an exercise in further patience after waiting on parts and a nice day.

yes brand new battery brand new all three when i turned it on!!!

oh also the starter doesnt disengage properly

3,255

I am not a newer car person but I'd say the starter may either be loose or maybe it too needs replaced . did this car ever get driven through deep water or sit for a while where it was wet ? (for a while means a month or so ) PBN

i have the same car what i understand its the pmc computer and the starter getting stuck could be the same or again the pmc

Your Answer

Add photo

Related Questions

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 1,147 nationwide Grand Am listings starting at $1,000.

ZIP:

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,730
#2 John Saffrahn
John Saffrahn
Reputation 1,600
#3 Tom Demyan
Tom Demyan
Reputation 1,470
View All

Related Models For Sale

Used Pontiac Grand Prix
25 Great Deals out of 2,826 listings starting at $1,850
Used Pontiac Firebird
15 Great Deals out of 764 listings starting at $2,995
Used Ford Mustang
683 Great Deals out of 44,470 listings starting at $1,500
Used Chevrolet Camaro
372 Great Deals out of 31,226 listings starting at $2,500
Used Chevrolet Impala
547 Great Deals out of 35,508 listings starting at $899
Used Pontiac Bonneville
3 Great Deals out of 542 listings starting at $1,799
Used Honda Accord
1,052 Great Deals out of 66,932 listings starting at $1,000
Used Honda Civic
831 Great Deals out of 83,701 listings starting at $750
Used Chevrolet Malibu
1,100 Great Deals out of 79,818 listings starting at $2,500
Used Toyota Camry
1,224 Great Deals out of 82,701 listings starting at $750
Used Nissan Altima
1,281 Great Deals out of 74,432 listings starting at $1,000

Used Cars For Sale

2005 Pontiac Grand Am For Sale
127 listings starting at $2,500
2004 Pontiac Grand Am For Sale
262 listings starting at $1,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.