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Changing catalytic converts my self

15278 Views 7 Replies 8 Participants Last post by  ef9
Anyone already did this and can give me some advice on how to do it? I'm pretty good at working on my truck. (Done a lot harder than this) but on the two front converts it almost looks impossible to undo the bolts on the engine side because the heat shield is in the way. But at the same time it looks crazy hard to try and get that heat shield off. It's hard enough to even see the bolts on the thing. Any advice on how yall did it would help! Thanks (2005 frontier 4.0)
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I replaced the forward catalytic convertor on the passenger side of my wife's 2006 Xterra. There was no way to remove the heat shield (for the exhaust manifold) in one piece. You probably could, but that would require the removal of some coolant line above.

I ended up cutting the heat shield, as well as prying it and smashing it.

You will need to remove all hanger bolts for the exhaust manifold, as well as loosening the bolts on the opposite bank catalytic convertor. I then used a ratchet tie down to pull the exhaust system to the rear of the car.

Be sure to use new exhaust gaskets as well.
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