Matching You with a Pre-Screened Smog Check Center You will Love
CA DMV Registration Renewal
$500 Free Consumer Repair Assistance
Failed Emissions Test
How to Pass the Test
Who Else Wants To Pass the Smog Check
Which Type Should I Choose?
    Forum > Emissions Component > Question

Join the community and post your questions. Ask-A-Tech right now!

Emissions Component

1999 Chevy Tahoe LS Service Engine Soon Light ON

I own a 1999 Chevy Tahoe LS.. The service engine soon light is on. I had O Rileys check it with thier trouble code scanner and they said it shows an emission leak.

I put a new transmission in my Chevy Tahoe 2 years ago and I just had two new catalytic converters put on. Then the check engine light came back on just a couple of days ago. I was wondering what it is and if it is ok to drive it.


To find out if it's ok to drive your Chevy Tahoe with the service engine soon light on we need to know what is causing the light to turn on in the first place. If it's not transmission related and you do not notice any driveability issue you might be okay with driving it for a short period of time until you have time to get the problem diagnosed and repaired.

As far as the "emission leak", the term is a bit vague. We can not say whether the auto parts store is referring to an exhaust leak, or high oxygen content in the exhaust, or perhaps a faulty oxygen sensor. You will need to have a smog check repair station (specifically) diagnose your Chevy Tahoe's service engine soon light fault.

posted by SmogTips Support 09-03-2013 06:25 PM

Related questions and answers you might find useful:

1995 BMW M3 Gross Polluter High HC & NO @ 15MPH by Jared on 09-27-2021 08:56 AM

Missing Emission Sticker Caused Smog Check Failure? by Michael on 09-24-2021 04:05 AM

Do PCV Hoses Have To Be CARB Certified? by Kevin on 09-23-2021 11:41 AM

2005 Chevy Tahoe EVAP Monitor Won't Reset After Parts Replaced by Efrain on 09-20-2021 08:49 AM

Buying 2004 Volvo XC90 from Nevada by DJ on 09-18-2021 06:22 PM