Attach the spark plug to a spark plug tester, then connect the tester to the ignition wire. Start the engine and observe the ...

When your check engine light comes on, it is a warning that something is wrong with your vehicle. Here are five of the most likely causes to check for.

Check it out as we fix up the fuel and spark system on our 5.3 LS engine that we got at Dave's Goldenwest Auto Wrecking with some parts from Lokar, Milodon, Holley/Weiand, ARP, Professional ...

You fixed your car's issue, but the dash is still lit up like it's Christmas. Here's how to reset the check engine light in a few simple steps.

Tied for first place among the most common check-engine-light-related issues is the need to replace the ignition coil (s) and spark plug (s), at a typical cost of around $390, and to install a new ...

The average cost to fix a “check engine light” related issue decreased by 10% over the last year, and it's 15% less than in 2006.