Rough idle/bad battery?

10

Asked by Mar 04, 2015 at 11:05 PM about the 2007 Mitsubishi Galant ES

Question type: Maintenance & Repair

Odd issue with my '07 Mitsubishi Galant ES. After I left work for the day, I found my keyless entry wouldn't work. When I opened the car door, there was no dome light and nothing would turn on when I put the ignition in the On position (my battery's a little over two years old). After I got a jump, the car ran fine and I was able to drive home.

Once I got back home, I turned the car off and it wouldn't turn back on. I cleaned the terminals to the battery with Coca-Cola (didn't disconnect the battery terminals). After a few minutes for that to settle in, the car started and was able to restart when attempted. I drove the car around the block and found that, when I turn the heater on, the car's RPMs drop quite low. Back home, I turned the engine off and back on after a few minutes. The car's idle is a bit rough for a brief moment then settles back around 1k. Turning the heater back on drops the RPMs down, but it then goes back up to around 1k again. There are no engine codes and no lights displaying on the dash. Suggestions?

2 Answers

10

I had considered the alternator, but thought the battery was suspect as our temperatures have been a bit cold for the last week or so. If I were to use a multimeter, would there be a way I could measure voltage, and what readings should I expect if the battery's bad vs. the alternator? Thank you very kindly for the swift response!

1 out of 1 people think this is helpful.
10

So, my bright arse realized I could check YouTube for a quick primer on multimeters and how to test batteries/alternators. So before I run for my multimeter, I thought it gave a good direction for me to pursue, so I'll will provide here in case anyone else experiences what I have. https://www.youtube.com/watch?v=2_sFE_M16ps Thanks again!

Your Answer

Add photo

Related Questions

Galant

Looking for a Used Galant in your area?

CarGurus has 1,249 nationwide Galant listings starting at $1,995.

ZIP:

Search Mitsubishi Galant Questions

Mitsubishi Galant Experts

#1 dandyoun
dandyoun
Reputation 730
#2 Tom Demyan
Tom Demyan
Reputation 700
#3 Daniel Foster
Daniel Foster
Reputation 560
View All

Related Models For Sale

Used Mitsubishi Lancer
29 Great Deals out of 5,571 listings starting at $2,200
Used Honda Accord
714 Great Deals out of 86,717 listings starting at $699
Used Toyota Camry
799 Great Deals out of 89,195 listings starting at $950
Used Nissan Altima
854 Great Deals out of 78,302 listings starting at $1,677
Used Honda Civic
490 Great Deals out of 87,487 listings starting at $1,499
Used Nissan Maxima
269 Great Deals out of 26,080 listings starting at $1,990
Used Mitsubishi Eclipse
27 Great Deals out of 1,323 listings starting at $1,500
Used Toyota Corolla
666 Great Deals out of 71,668 listings starting at $1,950
Used Mitsubishi Lancer Evolution
17 Great Deals out of 513 listings starting at $9,950
Used Chevrolet Malibu
799 Great Deals out of 80,685 listings starting at $1,500
Used Volkswagen Jetta
359 Great Deals out of 36,520 listings starting at $995
Used Mitsubishi Outlander
68 Great Deals out of 9,838 listings starting at $1,900
Used Chevrolet Impala
507 Great Deals out of 28,961 listings starting at $995
Used BMW 3 Series
949 Great Deals out of 33,268 listings starting at $1,000
Used Mazda MAZDA6
93 Great Deals out of 15,880 listings starting at $1,700

Used Cars For Sale

2012 Mitsubishi Galant ES For Sale
55 listings starting at $5,999
2011 Mitsubishi Galant ES For Sale
36 listings starting at $4,795
2010 Mitsubishi Galant ES For Sale
18 listings starting at $4,500
2009 Mitsubishi Galant ES For Sale
98 listings starting at $2,999
2008 Mitsubishi Galant ES For Sale
39 listings starting at $2,995