03 mercury grand marquis gs has stumbling and stalling. All this after washing the engine in a car wash. What's possible things wrong
Hi there,
Washing the engine could cause an issue with the spark plug wires or ignition coils. Here is some info for you regarding these codes.
P0305 MERCURY - Cylinder 5 Misfire Detected Read more: https://www.autocodes.com/p0305_mercury.html
P0316 MERCURY - Misfire Detected On Startup First 1000 Revolutions Read more: https://www.autocodes.com/p0316_mercury.html
36.2k questions
32.2k answers
1.3k comments
22.8k users