Try to find the code. That should at least point you in the right direction. I got tired of going to the parts store everytime I got a CEL on one of my vehicles, so I finally just caught one on sale and bought it. Has come in handy. Can also use it to reset codes without having to pull the battery cable.

Stupid question, but I assume tranny seems normal and you are hitting overdrive when you should? RPM's seem normal and all that? Just curious if "stuck" in tow mode or something crazy like that.

 

Everything feels and sounds normal -- good idle, no skipping or stumbling, tranny shifts correctly. I let the truck coast in neutral today and thought it wasn't gonna ever stop so the brakes don't seem to be hanging. I have always paid close attention to gas mileage. Nothing seems amiss - except for the CEL showing up twice, and that was a couple weeks after the tow and after the MPG had gone down. So, I don't know if the CEL and the MPG reduction have anything to do with each other. MPG decrease definitely came after the towing day, though.

I have a new set of plugs and will probably install them tomorrow. Will also try to get back to Autozone or somewhere soon to see about having them read any stored codes.

Thanks,
Mike

 

Good luck and keep us posted.