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 of 1 people found this 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

Galant

Looking for a Used Galant in your area?

CarGurus has 963 nationwide Galant listings starting at $1,995.

ZIP:

Mitsubishi Galant Experts

  • #1
    Tom Demyan
    Reputation
    800
  • #2
    dandyoun
    Reputation
    790
  • #3
    Daniel Foster
    Reputation
    600
View All

Related Models For Sale

Used Mitsubishi Lancer
34 Great Deals out of 3,955 listings starting at $1,900
Used Honda Accord
838 Great Deals out of 87,588 listings starting at $1,444
Used Nissan Altima
1,145 Great Deals out of 74,665 listings starting at $900
Used Toyota Camry
1,072 Great Deals out of 76,710 listings starting at $1,100
Used Mitsubishi Eclipse
17 Great Deals out of 1,064 listings starting at $1,500
Used Chevrolet Malibu
998 Great Deals out of 53,710 listings starting at $1,250
Used Nissan Maxima
335 Great Deals out of 20,582 listings starting at $1,175
Used Mitsubishi Lancer Evolution
13 Great Deals out of 592 listings starting at $12,700
Used Mitsubishi Outlander
87 Great Deals out of 12,420 listings starting at $1,898
Used Toyota Corolla
888 Great Deals out of 69,846 listings starting at $1,479
Used Honda Civic
573 Great Deals out of 52,763 listings starting at $1,500
Used Dodge Charger
323 Great Deals out of 35,833 listings starting at $1,999
Used Hyundai Sonata
607 Great Deals out of 53,974 listings starting at $1,500
Used Chevrolet Impala
518 Great Deals out of 32,285 listings starting at $1,000
Used Mazda MAZDA6
187 Great Deals out of 11,953 listings starting at $1,200

Used Cars For Sale

2012 Mitsubishi Galant ES For Sale
50 listings starting at $4,499
2011 Mitsubishi Galant ES For Sale
21 listings starting at $3,999
2010 Mitsubishi Galant ES For Sale
7 listings starting at $6,550

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.