Thread: Hot exhaust manifold. New cat, still problems

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  1. #1 Hot exhaust manifold. New cat, still problems 
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    I posted in the 04+ forum a little while back about my GTP catching fire by the exhaust manifold....spark plugs wires started melting causing a small fire. Turned out my cat was clogged up. Well, a new downpipe and hi-flow cat later, thinking the problem would be fixed (with upgrades ), but they call back and say that the manifold is still getting super hot......even with the cat-back dropped. They thought it was blocked up a bit too. Original cat was indeed toast.

    They ran the car a bit with the charger belt off, but still hot. Anyone have any info on what the problem could be?
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  2. #2 Re: Hot exhaust manifold. New cat, still problems 
    donated to get this wow TorqueAutoMotiv's Avatar
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    my bet is the cars running on the lean side maybe vacuum leak or something along those lines

    98 gtp sedan forest green ,S1X intense cam,Intense pcm,Magnaflow exhaust, ubend delete,TEP trans 3.29's,3.4 smoothflow mps,Dyno'd 281hp and 371ft #'s of trq at the wheels
    http://www.cardomain.com/ride/3338681
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