JJ's Auto Service

Smog inspection station

4.4 4.4 from 242 reviews

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JJ's Auto Service is a smog and emissions station in Downey, CA. It holds a 4.4 star rating from 242 customer reviews. Read the reviews and hours below, or call (562) 803-3030.

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Address12401 Woodruff Ave #1, Downey, CA 90241

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Phone(562) 803-3030

Websitehttps://www.smogcheckautorepair.com/

Also onGoogle

LicenseCalifornia BAR ARD 284529Active on the state's licensee list (October 2026), registered since 2016

Smog checkLicensed smog station, Test & Repair (284529)

Hours

See the full week

Monday	8 AM–5 PM
Tuesday	8 AM–5 PM
Wednesday	8 AM–5 PM
Thursday	8 AM–5 PM
Friday	8 AM–5 PM
Saturday	8 AM–3 PM
Sunday	Closed

JJ's Auto Service Reviews & Ratings

Customer reviews 4.4 4.4 · 242 reviews

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What Car Repairs Cost in Downey, CA

Typical independent shop prices at California labor rates, parts and labor, for a midsize car. Each guide shows the price for your vehicle and what to ask before you pay. See all 91 repair cost guides.

Catalytic converter replacement cost $420 to $1,750 Oxygen sensor replacement cost $120 to $510 EVAP leak repair cost $140 to $740 EGR valve replacement cost $210 to $840 Purge valve replacement cost $110 to $460 Exhaust leak repair cost $150 to $690