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stang17

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You said you had the blower on for less than a week. Did you do a crank relearn after install?
 
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robmustang201528

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Yeah I think they did. I didn't get it tuned after I took the cats off. They said I should be fine
 

F1scamp

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It might have sucked the cats up into the cylinders, what did the spark plugs look like when they came out? Might be time for a leakdown and compression test.
 

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robmustang201528

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I dont think it sucked up pieces of the cat. I'm not sure??? I guess anything is possible at this point. Spark plugs looked normal. Normal wear.
 

F1scamp

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After less than a week, they should look brand new? I've seen pieces of broken cat's stuck in throtttlebodies before, it's weird what will happen in a motor when things have no where to go.
 
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robmustang201528

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Busy worried about oil pump gears. I should've gotten the cats taken off smfh
 

15RRGT

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After less than a week, they should look brand new? I've seen pieces of broken cat's stuck in throtttlebodies before, it's weird what will happen in a motor when things have no where to go.
So very true! In my experience when parts break but have no readily available escape point they go right exactly where you do NOT want them to go Lol.
 
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robmustang201528

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Is there anything on the SCT X4 I can use to track down the problem? Spark fuel? Anything is should look for while driving?
 

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robmustang201528

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Car still drives normal, no knocks or weird noise. No smoke except for my oil cap breather spitting oil all over the place when I get on it. I wouldnt notice a issue if the light wasn't on. I just hope my motor is not blown
 

F1scamp

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Car still drives normal, no knocks or weird noise. No smoke except for my oil cap breather spitting oil all over the place when I get on it. I wouldnt notice a issue if the light wasn't on. I just hope my motor is not blown

Leakdown and compression tests. And stop getting on it until you figure it out..:doh:
 

SolarFlare

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Looks like you’re blowing combustion gasses past the rings and pressurizing the crankcase. Stop before you turn a simple ring job into a needing a new motor.
 

gimmie11s

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It might have sucked the cats up into the cylinders, what did the spark plugs look like when they came out? Might be time for a leakdown and compression test.
Sucked cats into the cylinders? Even though there is PRESSSURE in the exhaust that is likely several psi higher as a ratio than on the intake side?

No.


Car still drives normal, no knocks or weird noise. No smoke except for my oil cap breather spitting oil all over the place when I get on it. I wouldnt notice a issue if the light wasn't on. I just hope my motor is not blown
Might have popped a ring land on #8 piston.

Start with compression test.
 
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robmustang201528

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Thanks guys for all of your input. Gonna tell them to do a compression test tomorrow. I'm wondering what someone said earlier. What made the cats melt on one side and not the other? The stuff inside that cat is hard as hell!!. And the passenger side car is great shape. I feel like something happen in the motor for the cat to fail. I've only had the blower on a week smh. I figured the highflow cats would last a little longer then a week.
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