A few tips for passing smog check in the state of California:
1.) Disconnected or new battery? 2.) Engine light on? 3.) Old gas or not running well? 4.) Rips, tears, holes? 5.) Gas cap?
Explanation of Quick List:
1.) Has your battery been disconnected recently or have you had to jump start your car? If so, on vehicles 1996 and newer this will cause your vehicles computer to require re-booting. Your vehicle will fail the smog test if the re-boot hasn't completed all tests. In order to re-boot your computer, we recommend freeway/city driving for at least 150 miles without any disconnection in the battery or jump starting. In addition, if you've had work done on the vehicle recently, follow this tip in case, unbeknownst to you, an engine code was cleared or your battery was disconnected during the repairs. This will save you time and money and is one of the biggest reasons for smog failures on 2000 and newer vehicles. 2.) Is
your check engine light on? If so, your vehicle will fail the smog and
technician's are required by the state to perform the entire test.
Engine lights come on to notify you that there is a problem within your
vehicles operating system and they should not be ignored as further
damage can result. A repair shop can diagnose engine light codes and
test the necessary components to determine where exactly the trouble
lies. It is recommended that you DO NOT just plug in a code reader and
replace a part based on the code. This can lead to costly repairs and
parts replacement if the problem lies elsewhere in the operating
system. FYI-Clearing codes on your vehicle will make the engine light
go off for a short period of time but your vehicle will still fail the
smog check since your computer will need to re-boot (see tip#1). 3.) Is
your vehicle running smoothly? If your vehicle doesn't sound or run
smoothly, this is another clue that the emissions may be out of whack as
well. If your vehicle has been sitting for long periods of time or
you haven't changed the oil since the stone age, you might want to
address these issues before going for your smog. Also, old gas that has
been sitting in your vehicle while it wasn't being used can add to your vehicle emitting high levels of pollution during a test. We suggest you not smog your vehicle until you have run at least one tank of fresh fuel though the system.In addition, driving your vehicle for at least 20 minutes prior to your smog, warms the engine and is not a bad idea!
technician's are required by the state to visually check all of your
vehicles emission hoses and parts to make sure they are: state approved,
fuel rated, free of cracks, holes, black tape/duct tape, rips, etc. To
the untrained eye, sometimes these things are difficult to see and a
fail cannot be prevented. Although, some of these things stand out like
a soar thumb and you can have them fixed by a licensed mechanic prior
to the smog. Please remember that shops are bound by thestate's Health & Safety Code, California Code of Regulations and cannot risk their livelihood for your smog check; therefore, asking them to overlook even the tiniest of concerns, would be illegal for them.Keep
in mind vehicles now are smarter than ever and highly sophisticated
machines. Having un-licensed and un-certified "mechanics" work on them
for you is asking for trouble.
caps are also tested to ensure they properly seal the tank from
releasing fumes. Therefore, if you see that your gas cap has cracks or
you replaced it with one from some old junker in your yard, most likely
it will fail this test. Gas caps are usually under $15, so when in
doubt, replace it. This is cheaper than paying for a re-test. Oh and
don't forget to screw that cap on until you hear it click three times.
This is how you know the tank is properly sealed.
6.) Keep in
mind, once you initiate a smog check and sign your cost estimate, you
are giving permission to that business to begin the smog TEST for the
price listed. Key word here is TEST and not smog PASS. Beginning a
smog and then aborting it once a FAIL is seen is not good business
practice and not something the state looks kindly upon. So, if you go
into a smog thinking a technician should "let you off the hook" once
they see something which requires a fail, you're going to be
disappointed. Often times, having a full and complete smog test
performed, even if it is failing for one or more things, offers you an
entire picture of EVERYTHING you need to address to get your vehicle
through smog. This can prove to be a money saver if the vehicle ends up
gross polluting or requires costly repairs. Rather thanthrowing money at your vehicle prior to a smog, a failed smog can help determine if it's worth the time and money to repair it.
7.) With a
FAILED smog, the DMV offers a 2 month red sticker for about $50 which
enables you to legally drive the vehicle past it's registration date.
This gives you more time to get the vehicle repaired and can be a big
help if the repairs are costly.
state also offers a Consumer Assistance Program to help low income
consumers pay for necessary emissions repairs. Visit:
for more information.
A few tips for passing smog check in the state of California:
1.) Check engine light on? 2.) Old gas or not running well? 3.) Disconnected or new battery? 4.) Rips, tears, holes? 5.) Gas cap? For indepth explanation about these "Quick Tips" please see previous post below.
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