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 > Failed Smog Test > Question

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

Failed Smog Test

2005 Jeep Wrangler Not Ready For Smog Test

I have been dealing with this issue for over 8 months now. I own a 2005 Jeep Wrangler Rubicon with 64,000 miles on it that I bought from out of state 3 years ago. When I went to smog my vehicle this year, I was told that I had a exhaust leak and needed to replace the exhaust manifold. I replaced it; the manifold was fine but the down pipe was loose. Since I had the engine apart, I replaced the 2 o2 sensors then took it to test. It still showed the o2 sensor not ready and was told I needed to replace the other 2 o2 sensors after Cat because one of them must have been bad. It still had a faulty o2 sensor reading. I was told to drive the vehicle. 4 months later, still O2 sensor not being ready. I called the CARB and they mentioned TSB #25-005-13 Rev. A. I do not have a service engine light on. My mechanic says it doesn't apply. I'm at whits end and the dealership wants $169 to start looking for the problem but no answers.


The TSB you've indicated, #25-005-13 Rev A, should cover this issue. It applies to 2005-2006 Jeep Wranglers equipped with either a 2.4 or 4.0 liter engine. The problem is, more than likely, you're Jeep Wrangler has passed it emissions warranty period, and thus, the repair will be up to the current owner. We've attached a PDF of TSB 25-005-13 which is supposed to fix the I?M readiness problem your Wrangler is experiencing. Depending on your level of electrical expertise, you may be able to perform this repair at home. It's not a guaranteed fix in the sense that it is very possible there is another fault which is causing O2 emission monitor not to become "ready" or "complete", but you won't be able to tell until you perform the TSB. If the dealer you've visited seems to be unhelpful, check with either another Chrysler/Jeep dealer or even a proficient smog check repair shop.

A quick indication that your Jeep Wrangler's Emission Monitors are not ready for the smog test:

Turn the ignition key to the ON position, do not crank the engine, and monitor the Malfunction Indicator Lamp (MIL). The MIL should illuminate solid. After approx 15 seconds, if the MIL begins flashing for about 10 seconds and then returns to solid illumination, your Jeep Wrangler is not ready for the smog check; its emission monitors are not complete.

TSB #25-005-13 Rev A

posted by SmogTips Support 11-16-2016 05:35 PM

Related Jeep Wrangler questions and answers you might find useful:

Jeep Wrangler Sport DMV Registration Is Due In 7 Days by Irack on 10-02-2020 04:18 PM

2009 Jeep Wrangler Sahara Smog Check for Federal Emissions by jennifer on 09-10-2019 08:47 AM

Jeep Wrangler 4.0 How Many Catalytic Converters? by Richard on 09-01-2018 04:33 PM

2005 Jeep Wrangler Not Ready For Smog Test by Kenneth on 11-15-2016 11:56 AM

1990 Jeep Wrangler Failed EVAP Test by Mike on 11-23-2015 11:53 AM