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Prime Buyers Guide Smog Check Centers

How to Find the Best Smog Stations in the Napa Valley Area

With California's car emission laws, every car must have a smog check periodically. Older cars may have more difficulty passing a smog test, but good smog test centers can give you recommendations on how to meet California emissions guidelines. There are many smog test-only shops in the Napa Valley Area and good smog test technicians can perform your smog emissions test quickly and efficiently. For good information on cheap smog check centers and Gold Shield facilities in the Napa Valley Area, read the following articles prepared by The Prime Buyer's Report.
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Updated October 20, 2008

Top 10 Smog Check Centers in Napa Valley Area

M C M Jobe's Repair
(707) 252-8802
1824 Yajome St
Napa, CA 94559

Areas Served: Napa County & Napa Valley, Calistoga, Deer Park, Saint Helena, Angwin, Pope Valley

Pimp My Ride
(707) 224-7467
1162 Jordan Ln
Napa, CA 94559

Areas Served: Napa County incl. Napa CA, Pope Valley, Calistoga, Rutherford, Angwin, St Helena

Silver Auto Service
(707) 224-4708
713 Silverado Trail
Napa, CA 94559

Areas Served: Napa CA, Calistoga, Pope Valley, St Helena, Yountville, Rutherford, Oakville

Valley Smog
(707) 253-7664
346 Soscol Ave
Napa, CA 94559

Areas Served: Napa Valley, Pope Valley, Saint Helena, Calistoga, Angwin, American Cyn, Rutherford

Napa Smog Test Only
(707) 224-5566
1509 Main St
Napa, CA 94559

Areas Served: Napa CA, Saint Helena, Yountville, Angwin, Rutherford, Calistoga, Pope Valley

Napa Valley Smog
(707) 254-0227
684 Lincoln Ave
Napa, CA 94558

Areas Served: Napa County, incl. Napa CA, Yountville, Calistoga, Angwin, Yountville, Rutherford

Quick Smog And Test Only
(707) 253-8353
662 Soscol Ave
Napa, CA 94559

Areas Served: Napa CA, Calistoga, Angwin, Pope Valley, St Helena, Rutherford, Yountville

Express Smog Test Only
(707) 252-7891
1162 Jordan Lane
Napa, CA 94559

Areas Served: Napa County, Calistoga, Napa, Yountville, Rutherford, Pope Valley, American Canyon

Classic Auto Repair
(707) 257-6677
809 Vallejo St
Napa, CA 94559

Areas Served: Napa Valley, Napa, Calistoga, Angwin, Pope Valley, Rutherford, St Helena, American Cyn

Gary Ray Auto Repair
(707) 224-3129
2601 Solano Ave
Napa, CA 94558

Areas Served: Napa CA, Calistoga, Rutherford, Pope Valley, Yountville

Updated September 5, 2008

How to Find the Best Smog Stations in the Napa Valley Area 

Smog, a word coined by combining "smoke" and "fog," is a mixture of chemicals acting as air pollutants. Emissions regulations like those we have in California (among the strictest in the world) reduce the chances of this pollution causing health hazards to people and the Earth.

Napa Valley Area Smog Stations Perform Numerous Services
Along with a routine smog check, diagnosing engine problems is among the services offered by smog mechanics. Smog inspections in the Napa Valley Area can include computer scans for Diagnostic Trouble Codes (DTCs), visual inspections, fuel pressure tests, cooling system pressure tests, cylinder balance tests, temperature tests, and more. You can help the technician during the course of discovery by describing obvious problems like decreased fuel economy, throttle hesitation, engine stumbling, lack of normal power or difficulty starting. A covert problem like cylinder misfires, engine stalls, fuel delivery problems and oxygen sensor failures may be the reason your vehicle has difficulty passing a California smog check.

Another important aspect in the world of emissions testing is whether or not the shop can, if your vehicle fails to pass a smog test, restore your vehicle to passing condition. According to the California Bureau of Automotive Repair, Test-Only stations are prohibited by law from performing diagnosis or repairs of any kind. Gold Shield stations are licensed to perform official smog inspections and repairs; issue certificates to Gross Polluters; perform state subsidized repairs; perform the "after repairs" certification test on vehicles that were directed to, and failed their Smog Check at a Test-Only station. Some smog stations in the Napa Valley Area (Gold Shield Stations) offer full mechanical services to repair any damaged components. Passing the smog test is important because the California DMV requires owners to present a smog certificate—a document detailing emissions testing results—within 90 days of renewing vehicle registration.

Check Out the Choices of Smog Stations
There are many auto smog centers to choose from, ranging from the cheap smog inspection stations to those that guarantee a pass. The Prime Buyer's Report lists the top ten smog stations in the Napa Valley Area as M C M Jobe's Repair, Pimp My Ride, Silver Auto Service, Valley Smog, Napa Smog Test Only, Napa Valley Smog, Quick Smog And Test Only, Express Smog Test Only, Classic Auto Repair, Gary Ray Auto Repair. Other smog specialists in Napa Valley not listed are .

Do a Little Research Before Deciding on a Smog Shop
Test prices can vary a little from shop to shop. Instead of automatically choosing the cheapest auto smog test company, compare a few and decide which will give you the best bang for your buck. Also check out our "Top 10 Smog Tips" to see how to improve your chances of passing.

Utilize Different Resources to Search Smog Shops in the Napa Valley Area
The Prime Buyer's Report provides unbiased Web sites and publications related to the smog and emissions control industry as well as information that will assist in selecting a top Napa Valley Area smog check centers. For Napa Valley Area emissions information, check out the Prime Buyer's Report article, "Key Resources for Smog Stations in the Napa Valley Area."
Updated October 20, 2008
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A Step-By-Step Guide for Choosing Smog Testing Centers in the Napa Valley Area 

Step 1: Understand the Rules of Smog Testing
You may think your car drives exactly the same as it did when you last passed a smog check, but driveability doesn't mean your car will pass a smog test. If your vehicle is fairly new, you don't necessarily need to provide a California smog certificate, but if your vehicle is older, it may not pass smog even though it passed last year. If you are aware of any problems or symptoms that could affect your car's ability to pass a smog check, describe those symptoms clearly and accurately to the smog test technician.

Step 2: Ask & Answer Questions Before Your Smog Test
The smog center should not only ask about the symptoms, but also your history with the vehicle, any previous problems and even driving habits. Select the most appropriate questions from the list below to supplement what you've already learned. Take notes on the answers you receive.

How long have you been smog testing cars in the Napa Valley Area?
Do you often do smog tests and/or repairs on my particular model/year of car?
If there is a problem passing the smog test, can you fix the problem once you've found it?
Will you contact the DMV to report my vehicle's smog test results?
When doing repairs, do you use original equipment (OEM) parts, other new parts, or used parts?
Will work performed by your shop affect my manufacturer's warranty?
Will you provide a written, itemized estimate for the smog test and smog repairs?
Will you provide a written contract for the smog test and smog repairs?
What process do you go through to price the smog test and work?
What type of warranty on smog testing and for smog work will you provide?
How long should it take to complete the work?
Do you provide loaner cars while my vehicle is being smogged?
If the smog repair work involves a damaged component, what was the failure?

Step 3: The Preliminary Decision on a Smog Testing Station
After you've interviewed a few smog check shops serving the Napa Valley Area, narrow the field. Remember that a good smog technician should be working with you to help get your vehicle smogged and registered.

Step 4: Final Research on Your Smog Technician
Make sure you've got all the information you need before deciding. What credentials does the smog center have? What about the employees? Does the company have a good reputation? Verify licensing, insurance, and other certifications.

Step 5: The Ultimate Smog Center Decision
Call for any final questions, and if your vehicle will be repaired by the smog station, ask the mechanic to provide a written and signed pricing, timing, quality, and warranty agreement.
Updated November 3, 2008
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Key Resources for Smog Check Centers in the Napa Valley Area 

Industry Associations That Have Information About Smog Testing and Smog Repair
AAA American Automobile Association (www.aaa.com)
AAAM Association for the Advancement of Automotive Medicine (www.carcrash.org)
AASP Alliance of Automotive Service Providers (www.autoserviceproviders.com)
ADS American Driving Society (www.americandrivingsociety.org)   
AIAG Automotive Industry Action Group (www.aiag.org)
AIRNow (www.airnow.gov)
ALA American Lung Association of California (www.caifornialung.com)
APAA Automotive Parts & Accessories Association (www.apaa.org)
ARB California Air Resources Board (www.arb.ca.gov)
ASA Automotive Service Association (www.asashop.org)
ASE Automotive Service Excellence (www.asecert.org)
ASPA American Salvage Pool Association (www.aspa.com)
ASQ American Society for Quality (www.asq.org)
BAR Bureau of Automotive Repair: Smog Check Menu (www.smogcheck.ca.gov)
BBB Better Business Bureau (www.bbb.org)
CAAT Council of Advanced Automotive Trainers (www.caat.org)
CAPA Certified Auto Parts Association (www.capacertified.org)
CARB California Air Resources Board (www.arb.ca.gov)
CSAA California State Automobile Association (www.csaa.org)
Diamond Certified (www.diamondcertified.org)
MEMA Motor & Equipment Manufacturers Association (www.mema.org)
NATEF National Automotive Technicians Education Foundation (www.natef.org)
NOAA National Oceanic and Atmospheric Administration (www.noaa.gov)
SAA Society for the Advancement of Autodynamics (www.autodynamics.org)
SAE Society of Automotive Engineers (automobile.sae.org)
SEMA Specialty Equipment Market Association (www.sema.org)
STS Service Technicians Society (www.sts.sae.org)

Web sites and Publications
www.autopia.org
www.autorepair.about.com
www.baaqmd.gov
www.carforums.net
www.dieselnet.com
www.dmv.org/ca-california/smog-check.php
www.smogtips.com  
www.vehicletip.com

4wd Magazine
Automotive News
Autoweek
Autofan
Automotive News
Automotive Rebuilder
Brake & Front End
Car and Driver
Car Mechanics Magazine
Detroit News
Import Car
Motor Age
Motor Trend
Popular Hot Rodding
Rebuilder Direct
Recyclers World
Road And Track
Super Chevy
Street Rodder
Truckin
Today's SUV
Turbo And High Performance Magazine
Underhood Service
US Auto News
VW Trends
Vette

The Prime Buyer's Report provides information for the 10 top smog test shops in Napa Valley CA within the following zip codes.

94503, 94508, 94515, 94558, 94559, 94562, 94567, 94573, 94574, 94576, 94581 and 94599

The Prime Buyer's Report provides information for top 10 smog mechanics in Napa County within the following cities.

American Canyon, American Cyn, Angwin, Calistoga, Deer Park, Napa, Napa, Oakville, Pope Valley, Rutherford, Saint Helena and Yountville
Updated October 20, 2008
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9 California Smog Check Tips for the Napa Valley Area 

Don't Smog Test Your Vehicle in Poor Condition.
If your vehicle sputters, stalls, or is otherwise running poorly, don't expect to pass the emissions test. Your inspection fee will be money wasted when the vehicle fails inspection. Repairing any obvious problems with your vehicle before the test will greatly improve your chances of passing your smog test.

Warm Up the Engine Before Your Smog Test.
A warmed-up engine will usually produce better emissions testing results. Internal-combustion engines need time to warm up in order to ensure efficient burning of the fuel in the cylinders. An warmed-up engine running at optimum levels will improve your chances of passing a smog test.

Try Over-the-Counter Products Before Taking Your Car to a Smog Center.
Fuel additives can be an ally in improving engine efficiency and lowering smog levels. Additives can clear carbon deposits and intake and exhaust systems helping fuel and air flow more freely and increasing your chances of passing a smog test.

Perform Some Routine Maintenance Prior to Having a Smog Check.
In certain California counties, enhanced inspections require the smog station to run your vehicle on a dynamometer. Make sure your tires are inflated evenly to recommended pressures to ensure top performance in this section. Also, have an oil change before your test so your engine is running at top efficiency.

Find Out if Your Vehicle Actually Needs a Smog Check.
Every time a vehicle is initially registered, and every two years after that, a smog check is required under California law. This applies to vehicles produced after 1976 that are powered by gasoline, propane, natural gas, and ethanol. Vehicles produced in 1975 or before are exempt from California's emissions laws. Vehicles four or six model-years old or newer are not required to perform a smog check until the vehicle is five or seven years old (unless the vehicle is sold or registered for the first time in California). Other exemptions (from smogtips.com), include: Vehicles with diesel engines, vehicles with two-cycle engines, vehicles with engines smaller than 50 cubic inches of displacement, electric vehicles, and motorcycles, as well as hybrids.

Check Up On The Smog Center.
For all smog checks in Napa Valley CA, be sure to check licensing, liability insurances, and any other relevant credentials before you sign. Understand that "Test Only" smog checks are performed at special facilities that are prohibited from performing repairs.

Choose Certified Smog Testing Companies.
Some smog specialists have earned certification from the California Bureau of Automotive Repair (BAR). Gold Shield stations are test-and-repair smog stations that contract with BAR and, in certain cases, perform state-subsidized repairs, offer services to dealers, and identify gross polluters (significant smog producers). Choosing a Napa Valley CA smog center that has earned Gold Shield certification, Diamond Certification, or is featured positively in consumer-rating publications will increase your chances of a good experience.

Keep In Touch With Your Smog Center.
When you have the slightest doubt about how a job is going, ask questions. As the tested vehicle's owner, you have the right to know about all aspects of the emissions testing process. Smog technicians can answer many questions about whether a vehicle will pass, and may be able to offer valuable advice on how to improve your vehicle's performance during a smog check.

Know Your Rights When Dealing With Napa Valley Area Smog Centers.
As a consumer, you have special rights. Check out the Web site for California's Bureau of Automotive Repair and the California Air Resources Board. For a full list of associations and organizations, see "Key Resources for Smog Tests in the Napa Valley Area."
Updated October 20, 2008
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Research on Auto Smog Services in the Napa Valley Area of Napa County 

 

Common Smog Check Terms

 

  • Emission Control System - A vehicle exhaust system and the components that reduce smog. The exhaust system control components include: evaporative emissions and tailpipe emissions.

  • Exhaust / Exhaust Emissions - Pollutants comprising smog that are harmful to people and the environment, including lead, unburned hydrocarbons, carbon monoxide, and nitrogen oxides.

  • Exhaust Analyzer - The smog check service device that uses infrared energy to determine the composition of engine exhaust gases during a smog test. Exhaust analyzers found in smog check centers include a two-gas type that measures hydrocarbons and carbon monoxide and a four-gas type, which measures oxygen and carbon dioxide.

  • Exhaust Gas Recirculation (EGR) - An emissions-control system that reduces smog by suppressing the production of nitrogen oxides and diluting the air / fuel mixture with exhaust gas so that cylinder combustion temperatures are lowered.

  • Exhaust Manifold - A component, usually made of cast iron, with passages that carry exhaust gases from exhaust ports to the exhaust system header.

  • Exhaust System - A system including tubing, mufflers, and catalytic converters that directs exhaust gases.
Updated November 3, 2008
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Diamond Certified