Verifiable Consumer Access and Deletion Request Form

Misfires Under Load With V6 on Mazda 626

Problem overview

Vehicles with a V6 engine may develop an engine misfire under load (acceleration). This can be caused by a valve cover gasket leaking oil into a spark plug well, shorting the spark plug to the cylinder head. To repair this concern, the valve cover needs to be resealed and the spark plugs and wires should be replaced.

RepairPal ™Car Genius

Ask our experts about your Mazda.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts

Exceptional warranty

Shops offer at least a 12-month or 12,000-mile warranty.

Satisfied customers

We ensure high satisfaction through verified customer reviews.

Transparent pricing

You'll get a Fair Price Guarantee on all RepairPal estimates.

Millions trust us for auto repair — RepairPal Certified^® locations must pass a rigorous approval process to ensure quality, customer satisfaction, and fair pricing.

Find a Repair Location

Misfires Under Load With V6 on Mazda 626

Problem overview

Mazda 626 vehicles with this problem

Need a diagnosis? Trust our Mazda experts.

Search for another problem

Ask our experts about your Mazda.

Misfires Under Load With V6 on Mazda 626

Problem overview

Mazda 626 vehicles with this problem

Repairs related to this problem

Spark Plug Wire Replacement

Spark Plug Replacement

Valve Cover Gasket Replacement

Need a diagnosis? Trust our Mazda experts.

Search for another problem

Ask our experts about your Mazda.