Re: 98 Expedition 5.4 Random Misfire
I also had a 98 Expedition, and when I'd encounter the misfire the CEL wouldn't light at first until the miss was bad enough. I found it strange that the misfire codes ARE NOT STORED. You have to have them read while the CEL is lit, but it will tell you exactly which cylinder is mis-firing.....no guess work. It's just a pain to try and get it read while lit, but if it's on, don't turn off the engine, and get to AutoZone...ect and have it read. Once again, the misfire codes on the 98 Expy don't store!!