plugged up cat?
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Joined: Nov 2013
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plugged up cat?
Hey guys, so my 04 5.4 has seemd pretty sluggish lately and mpgs have gone down. I thought maybe a cat was plugged up so I looked into it. I took one of those infrared thermometers with the laser. 3 of the cats showed around 100 degrees increase after the cat. The fourth one showed about 30 degrees cooler. This one is one of the back ones so there are no o2 sensors for it. Does this sound plugged to you? Thanks
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Joined: Feb 2014
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From: Birmingham, Alabama