So, this car owes me nothing, it has 237250 miles and runs like a champ, until today. She was on the highway at 75mph and started a little bit of a chug. It doesn't happen all the time, but enough that I'm worried about a fuel pump, or maybe misfiring spark plugs. I'm not super mechanically inclined, but is there something I can check on my own to narrow down the issues before I take it to a mechanic? I know this is like diagnosing my medical issues using the interwebs, but I'm desperate to keep her running after all this time. Thank you for your time and expertise.
What makes this problem better or worse?
acceleration
How long has your 2004 Chrysler 300M had this problem?
RepairPal Certified shops can diagnose and repair your 2004 Chrysler 300M. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Hello, stop "worrying about a fuel pump". Have fuel pressure checked -- it's likely just fine.
If you're "not super mechanically inclined" - there's not much to offer suggestions to you as far as what you can do without taking it to a professional.
Testing on what is going on must be performed using diagnostic tools which cost thousands of dollars and are a large investment for technicians or repair shops in general, which is one of the reasons there is a cost to performing diagnostic testing. It's essential and available and helpful, and will give you some direction on what to do going forward. Sounds like your vehicle has been great for you -- perhaps you can get many more miles out of it! Good luck.
