tell me how to do that?

Question

what is the easy way to change sparkplugs on a 99 linconl navigator ,cuz ican,t get the orthers on the back cylinder that is close to the firewall .if disconnect some wires or some hoses ,,will that help without messing up car?

Answer 1

Many times it's easier to jack up the truck and remove the wheel to access the sparkplugs thru the splash guards.

That's the way I do it anyway.

Answer 2

it sounds like this is not something you should have tackled there is a lot of lines and wires and other things in your way you may end up having more problems and expense you need to have a mechanic do the tuneup.