On the Mark Smog & Auto

Auto repair shop

4.7 4.7 from 50 reviews

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On the Mark Smog & Auto is a smog and emissions station in El Cajon, CA. It holds a 4.7 star rating from 50 customer reviews. Read the reviews and hours below, or call (619) 579-0388.

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Address1243 Greenfield Dr # C, El Cajon, CA 92021

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Phone(619) 579-0388

Websitehttp://onthemarksmog.co/

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LicenseCalifornia BAR ARD 256760Active on the state's licensee list (October 2026), registered since 2008

Smog checkLicensed smog station, Test & Repair (256760)

ASEASE certified technicians the shop's own website says so; ASE has no public lookup for individual technicians, so MechanicRank has not checked it

Hours

See the full week

Monday	9 AM–6 PM
Tuesday	9 AM–6 PM
Wednesday	9 AM–6 PM
Thursday	9 AM–6 PM
Friday	9 AM–6 PM
Saturday	9 AM–1 PM
Sunday	Closed

On the Mark Smog & Auto Reviews & Ratings

Customer reviews 4.7 4.7 · 50 reviews

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What Car Repairs Cost in El Cajon, 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