In its latest state ranking of check engine light-related car repair costs, CarMD finds Ohio has the lowest average repair cost ($354.24), improving one spot from its no. 50 ranking last year, while the District of Columbia has the highest average repair cost ($414.02) for the second consecutive year. Rounding out the five most affordable states for car repair over the past year were Maine, Michigan, Wisconsin and Vermont. After D.C., Connecticut, California, Georgia and New Jersey were the most expensive states for repairs. CarMD analyzed data from more than 11.4 million cars, trucks, vans and SUVs needing repairs in 2018 to compile this ranking.

CarMD’s ranking of the five states/districts with the highest car repair costs in 2018:

CarMD ranking of the five states/districts with the lowest car repair costs in 2018:

• Car Repair Costs are Up: The average cost to repair a check engine light in Ohio was $354.24, which was nearly 6 percent higher than the previous year when drivers in Ohio paid $335.26 on average for parts and labor. The average cost to repair a check engine light issue on a vehicle in D.C. in 2018 was $414.02 – up nearly 3 percent year-over-year from $402.92 in 2017, and a few dollars higher than the previously reported high of $410.98 in 2016.
• Labor Costs: For the third consecutive year, Vermont vehicle owners had the lowest average labor cost ($134.53) when you average all of the labor done on varying check engine light-related car repairs reported to CarMD. This is not surprising since the most common cause of a check engine light on Vermont cars and trucks was a loose or missing gas cap, accounting for 7.8 percent of repairs. Drivers in Mississippi paid the most for labor ($163.97), where the most common repair was to replace ignition coils and spark plugs. Type of repair, how long the repair will take and the shop’s hourly rate can all factor into the average labor cost. In Vermont, the most commonly repaired vehicle was a 2008 Chevrolet Silverado. In Mississippi it was a 2004 F150.
• Parts Costs: Drivers in Connecticut paid the most on average for parts ($264.60), while drivers in Michigan paid the least for parts ($201.74). The most frequently recommended repair in both states was to replace one or more oxygen sensors. In D.C., the parts portion of the bill for oxygen sensor replacement(s) was $174.35 on average while it was only $129.65 for an oxygen sensor part(s) in Michigan. Type of vehicle, type of repair and whether original equipment (OE) parts are used factor into the average parts cost. In Connecticut the vehicle needing the most check engine-related repairs was a 2005 Nissan Altima. In Michigan, it was a 2004 Ford F150.

State-by-State Ranking of Average Check Engine Light-Related Car Repairs – 2018
(Source: CarMD.com Corp.)