Victor Valley 4 Wheelers
September 06, 2010, 07:54:47 PM*

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Author Topic: Failed Smog Check  (Read 209 times)
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LisaIrvin
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« on: July 09, 2010, 03:34:43 PM »

Our jeep failed the smog test but they don't have a good idea why.  They said a lot of off road vehicles have a problem passing because of all the dirt that gets into things.  He suggested de-carbonizing it.  Has anyone had this problem?  Unfornately, the registration is due on Wednesday.  I didn't leave enough time for it to fail Sad.
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Lisa and John Irvin
Apple Valley, CA
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« Reply #1 on: July 09, 2010, 06:53:02 PM »

I have more than 194K miles on my YJ.  The only time it failed to pass smog was when they did a pressure test on the fuel and evap system and found a broken breather line coming from the gas tank.  Other than that, emissions have always been within limits.  I am sure since your Jeep is a much newer model the limits are a lot lower.

Good luck! Undecided
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Matt2001TJ
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« Reply #2 on: July 10, 2010, 07:31:20 PM »

Our jeep failed the smog test but they don't have a good idea why.  They said a lot of off road vehicles have a problem passing because of all the dirt that gets into things.  He suggested de-carbonizing it.  Has anyone had this problem?  Unfornately, the registration is due on Wednesday.  I didn't leave enough time for it to fail Sad.
Where did you take it ? I have never heard of that off road story thing ? Sounds like a story the guy gave because he did not have an answer for why it did not pass. Do you have AAA ?
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Mojave Dirtball
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« Reply #3 on: July 10, 2010, 08:25:32 PM »

Where did you take it ? I have never heard of that off road story thing ? Sounds like a story the guy gave because he did not have an answer for why it did not pass. Do you have AAA ?
[/quote]

Good question Matt.  I have always taken my vehicles to:

Hesperia Smog Center‎
9373 E Avenue, Hesperia, CA‎ - (760) 244-3311‎

Located across E Ave from K-Mart.  For twenty years I have found them to be very helpful.  Some suggestions they have given me over the years.

1.  Do not change spark plugs right before the test.  Drive for at least 100 miles after changing plugs.
2.  Change oil before the check.
3.  Make sure engine is hot.  Not just up to temp on the water temp gauge but fully up to operating temperature.  They suggested at least 20 miles driving before the test.
4.  Change the oxygen sensor before the test if it is more that three years old.
5.  If equipped with a distributor, change the rotor and cap.
6.  Make sure spark plug wires are in good condition.
7.  Use a high quality gas.  Not high octane, just a good national brand, Shell, Chevron, 76, etc.
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tool pimp
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« Reply #4 on: July 11, 2010, 10:58:46 AM »

Register it at Paul's house, no smog laws
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Rockee
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« Reply #5 on: July 11, 2010, 07:21:03 PM »

It depends on what failed.   Usually the 4.0 will fail the Nox gas test if anything and there is a logical troubleshooting procedure for this but without a printout or a failure description, it might as well have been too much swamp gas.
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LisaIrvin
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« Reply #6 on: July 12, 2010, 10:30:23 AM »

It was the Nox test that failed.  I took it to one place and they said one of the catalityc converters was bad and it was covered under the manufacturer's warranty.  We dropped it off at the dealer this morning.  We'll see what they have to say.  If that's not what it is, I'll need the troubleshooting list from Mike Smiley.
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Lisa and John Irvin
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Jeepinbob
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« Reply #7 on: July 12, 2010, 12:00:07 PM »

Not sure of any details, but Cal. smog laws have provisions for a one time California payout of $500.00 for repairs for failed smog.  There are restrictions and limitations, but not sure what thet are.  Might be worth looking into.  Bob
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LisaIrvin
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« Reply #8 on: July 12, 2010, 12:10:21 PM »

Thanks Bob, I will!
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Lisa and John Irvin
Apple Valley, CA
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« Reply #9 on: July 12, 2010, 06:38:30 PM »

Not sure of any details, but Cal. smog laws have provisions for a one time California payout of $500.00 for repairs for failed smog.  There are restrictions and limitations, but not sure what thet are.  Might be worth looking into.  Bob

According to DMV:

44017.  (a) Except as otherwise provided in this section or Section 44017.1, a motor vehicle owner shall qualify for a repair cost waiver only after expenditure of not less than four hundred fifty dollars ($450) for repairs, including parts and labor.

(b) The limit established pursuant to subdivision (a) shall not become operative until the department issues a public notice declaring that the program established pursuant to Section 44010.5 is operational in the relevant geographical areas of the state, or until the date that testing in those geographic areas is operative using loaded mode test equipment, as defined in this article, whichever occurs first. Prior to that time, the following cost limits shall remain in effect:

(1) For motor vehicles of 1971 and earlier model years, fifty dollars ($50).

(2) For motor vehicles of 1972 to 1974, inclusive, model years, ninety dollars ($90).

(3) For motor vehicles of 1975 to 1979, inclusive, model years, one hundred twenty-five dollars ($125).

(4) For motor vehicles of 1980 to 1989, inclusive, model years, one hundred seventy-five dollars ($175).

(5) For motor vehicles of 1990 to 1995, inclusive, model years, three hundred dollars ($300).

(6) For motor vehicles of 1996 and later model years, four hundred fifty dollars ($450).

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LisaIrvin
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« Reply #10 on: July 13, 2010, 07:37:42 AM »

Turns out the catalytic converter was bad.  They are going to cover that, but they said we have to pay for the extra labor it will take to remove all the "added" stuff to get to it.
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Lisa and John Irvin
Apple Valley, CA
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« Reply #11 on: July 13, 2010, 09:46:41 PM »

Turns out the catalytic converter was bad.  They are going to cover that, but they said we have to pay for the extra labor it will take to remove all the "added" stuff to get to it.

It was likely damaged by oil that got into it after the little flop......
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LisaIrvin
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« Reply #12 on: July 14, 2010, 07:58:35 AM »

That's what John was thinking.
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Lisa and John Irvin
Apple Valley, CA
Matt2001TJ
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« Reply #13 on: July 14, 2010, 01:22:05 PM »

 It was likely damaged by oil that got into it after the little flop......
...Agreed...
« Last Edit: July 14, 2010, 01:23:57 PM by Matt2001TJ » Logged

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