Whether you drive a Powerstroke, Cummins, or Duramax diesel, your truck is a complex piece of equipment. Emissions systems, fuel systems, and systems you’ve probably never heard of all work together to keep your truck going strong. Sometimes, however, a warning light will pop up on your dash, and leave you wondering what’s going on. From ABS to Check Engine Lights, Harold's Used Auto Parts Inc in Philadelphia, PA has you covered.

Warning lights are irritating at best, and a problem at worst. “Check Engine” doesn’t tell you much, and once you pull the codes, often not much is clarified. It takes trained professionals to accurately decipher an engine code, find the part at fault, and figure out why it isn’t working right. You need technicians like us, with the knowledge and equipment necessary to keep your truck on the road.

If a warning light shows up on your dash, don’t ignore it. There’s a good chance our team here at Harold's Used Auto Parts Inc can have the issue pinpointed and fixed in no time, keeping your truck in good shape and putting your mind at ease. No matter your repair or maintenance needs, we’ve got your back. For the best diesel service shop in Philadelphia, PA, call or stop by Harold's Used Auto Parts Inc today.