Does it have spark plug wires or just Ignition Coils VERY BAD GAS MILAGE
What is your question?
I just bought this HYUNDAI SANTA FE, low miles Car, I am putting in new Spark Plugs. my Gas mileage is about 10 miles to a Gallon of GAS. HELP. Just bought 6 New Spark Plugs. Do I get the COILS tested first. The car has only 110,000 Miles. My Miles should be about 20 M.P.G. at least on the HWY. THANK you for any suggestions
What makes this problem better or worse?
171 miles to a tank of gas. Motor runs very smooth
How long has your 2012 Hyundai Santa Fe had this problem?
RepairPal Certified shops can diagnose and repair your 2012 Hyundai Santa Fe. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Hello, this may not be reflective of a spark plug or coil or ignition system concern.
Fuel consumption is controlled by many factors -- but air / fuel / spark mixture based on information received by the engine's processor is a key part of it.
To address your question about the plugs - use Hyundai plugs and coils only. Removing the coils may cause stress to then rubber boots that insulate the coils onto the plug, so coil replacement isn't a bad idea. 110,000 miles is not an insignificant amount of miles -- this car isn't built to survive hundreds of thousands of miles without major efforts.
My suggestion would be to instead perform needed engine performance diagnostic testing to see why the economy could be so precipitously poor -- if in fact it's accurately measured.
Use this link to find some shops near you that can help with your concern:
www.repairpal.com/repair-shops
