Originally Posted by rvjon
After having to replace my spark plugs,coils and wires at 49K miles to try to take care of an intermittent stumble and it not working,I was wondering why I had to replace the plugs that soon. Yes,they were worn. Now at 58K I had to replace the brakes as there was 8mm on the front and 2mm on the back.Yes,I did have them checked at several different shops. It really seems to me that this isn't right. I know that this rig has an automatic braking system like a an engine brake and a tech says that it works on both the engine and the brakes,so I'm wondering if this caused the rear brakes to wear out to fast or are they just cheap brakes.
I also seem to be needing a new muffler and have an oil leak somewhere. After driving my '94 Cherokee Sport with NO problems for four years and 125K miles commuting 90 miles a day and a lot of 4X4 off road with NO trouble,I was expecting a really trouble free rig with this Liberty. Nawp....
Traction control is the main reason for early brake wear. Anytime the rear starts to spin, it gently applies brakes to that wheel to gain traction with the others ( in a very simple way of explaining ) So more wear. For example on my KJ ( without any of that electronic crap) I have done one brake job in 209,000 miles.
As far as plugs they need to be changed every 30,000 miles or so with a good copper core plug, nothing else cheap and easy to do .
Not sure on muffler but should not be needing to be replaced, I know of several that are double/ triple that mileage and stock exhaust yet
Do you ever wash up under it ?