I purchased a used 2004 Rainier from a dealer a week ago and today the engine light went on, not blinking just steady. I tightened the gas cap and have only added gas twice, bad gas maybe?

10

Asked by Dec 05, 2014 at 04:59 PM about the 2004 Buick Rainier CxL Plus AWD

Question type: Maintenance & Repair

4 Answers

The good news is a blinking Check Engine Light indicates a more serious problem than a steady on light. Not much to go on here, especially since you don't mention any problems so an OBDII scan is called for. Many large auto-parts houses will scan it free, and you will get a code(s) that begins with P followed by four numbers...PXXXX. Before you buy anything , come back and post the codes here..in a new question so it will be seen . One of us will be happy to help point you in the direction of a cause and cost-effective fix ...Bad gas..unlikely. Possible but unlikely

Best Answer Mark helpful
10

I removed and replaced the gas cap and after driving it for about a mile or two the light went off. Should I still get a scan?

1 of 1 people found this helpful.

No..then don't worry about it. I should have mentioned that gas cap is the by far most common reason for a CEL to come on, the DTC (Diagnostic Trouble Codes) only know the EVAP system is not sealed, It has detected a "Leak" which is not really a leak but the OBD doesn't know that. Good news, All is well, don't bother with the scan

10

Thank you FordNut

Your Answer

Rainier

Looking for a Used Rainier in your area?

CarGurus has 304 nationwide Rainier listings starting at $1,800.

ZIP:

Buick Rainier Experts

  • #1
    burtisconnor
    Reputation
    80
  • #1
    Tom Demyan
    Reputation
    80
  • #1
    tenspeed
    Reputation
    80
View All

Related Models For Sale

Used GMC Envoy
59 Great Deals out of 2,210 listings starting at $1,500
Used Chevrolet TrailBlazer
103 Great Deals out of 4,689 listings starting at $1,000
Used Chevrolet Equinox
991 Great Deals out of 80,312 listings starting at $1,750
Used Ford Explorer
788 Great Deals out of 63,031 listings starting at $1,425
Used Buick Rendezvous
18 Great Deals out of 1,031 listings starting at $1,895
Used Jeep Grand Cherokee
876 Great Deals out of 71,274 listings starting at $995
Used Chevrolet Tahoe
630 Great Deals out of 36,905 listings starting at $1,800
Used Honda Pilot
424 Great Deals out of 25,669 listings starting at $1,491
Used Saab 9-7X
4 Great Deals out of 130 listings starting at $1,995
Used Buick LaCrosse
328 Great Deals out of 18,809 listings starting at $1,500
Used Chevrolet Impala
577 Great Deals out of 34,581 listings starting at $1,250
Used Chevrolet Suburban
277 Great Deals out of 20,515 listings starting at $1,000

Used Cars For Sale

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.