ACDelco Oil Filter Lookup: Verify PF and GM Part Numbers
Use current GM and ACDelco information to identify an oil filter, reconcile PF and GM numbers, and resolve old labels or catalogue conflicts before buying.
Automotive guides
Why Does My Spark Plug Keep Fouling? Find the Recurring Cause
Separate carbon, oil and fuel fouling from external staining. Learn what recurring deposits reveal, which evidence to keep, and why replacement alone may fail.
Why Don’t Diesels Have Spark Plugs? Heat and Starting Aids
Diesels ignite fuel using compressed hot air. Learn how glow plugs, intake heaters and block heaters differ, and why a cold-start fault needs diagnosis.
Wet Driver-Side Carpet: How to Trace a Car Water Leak
Use timing, fluid clues and entry-path checks to investigate a wet driver footwell, including rainwater, AC condensate and possible coolant leaks.
Coolant on Spark Plugs: Wells, Cylinders and Diagnosis
Coolant around a spark-plug well differs from coolant inside a cylinder. Learn how location, symptoms and vehicle-specific tests guide the diagnosis.
OBD2 Scanner Not Working: Power and Connection Checks
Separate a dead scanner, no vehicle communication and missing functions. Check power, ignition state, app pairing and vehicle coverage in order.
Can Spark Plugs Turn On the Check-Engine Light?
Understand how spark plugs can trigger an engine warning, what flashing lights and misfire codes mean, and why a scan code does not identify the failed part.