Check engine light

Asked by Leila Feb 09, 2016 at 05:14 PM about the 2013 Kia Rio5 LX

Question type: Maintenance & Repair

My KIA Rio5 keeps giving me a check engine light.
We ran a check and it didn't give us any codes...
1500km and 1 week under needed oil change and
my oil is black and like sludge. My shop is wanting
to charge me 120$ a hr to run diagnostics. Any
suggestions as to what could be causing the check
engine light and the oil to be black and sludgy so
early?

2 Answers

665

If you are not way over due for an oil change, the only things that I can think of that would cause your oil to become black and like sludge is if a contaminate was deliberately put in the motor, you have coolant some how making its way into the motor, or your pcv valve or system is bad. You need to flush the motor as soon as possible to remove as much sludge as you can or it will not last too much longer. Sludge is an engines worst nightmare. I am a little confused as to how a service light would be on, but no codes are being given. Usually anytime a service light is on, it will always follow with a service code. Find your pcv valve and check if it is faulty by shaking it. If you hear a rattle, it is good and does not need to be replaced.

1 people found this helpful.
30

Change your oil on a regular basis within the recommended time in your vehicle’s owners manual. Keep in mind that this doesn’t mean you have to change it every 3000 miles; most automakers recommend 5000 – 7500 miles. When you regularly neglect these guidelines and exceed 10,000 miles, that’s when you can look for trouble. To supplement your oil changes, add Bell Engine Flush before you change your oil. This will remove oil sludge deposits in lubricating areas with your oil change. Sludge buildup is reduced and your lubricating system stays cleaner, longer

3 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Michael Kane
    Reputation
    430
  • #2
    dandyoun
    Reputation
    130
  • #3
    GuruLH9T2
    Reputation
    120
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Kia Rio
10 Great Deals out of 188 listings starting at $4,990
Used Kia Forte
89 Great Deals out of 1,668 listings starting at $3,495
Used Kia Soul
79 Great Deals out of 1,062 listings starting at $2,877
Used Hyundai Elantra
161 Great Deals out of 3,095 listings starting at $3,300
Used Mitsubishi Mirage
4 Great Deals out of 172 listings starting at $4,990
Used Toyota Prius
14 Great Deals out of 205 listings starting at $2,028
Used Toyota Corolla
139 Great Deals out of 2,287 listings starting at $3,495
Used Hyundai Accent
30 Great Deals out of 415 listings starting at $2,550
Used Kia Sportage
59 Great Deals out of 1,940 listings starting at $3,999
Used Kia Forte5
6 Great Deals out of 157 listings starting at $5,495
Used Honda Accord
53 Great Deals out of 1,019 listings starting at $2,995
Used Mazda MAZDA3
89 Great Deals out of 1,278 listings starting at $2,966
Used Chevrolet Spark
23 Great Deals out of 549 listings starting at $5,900
Used Ford Escape
157 Great Deals out of 3,950 listings starting at $3,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.