Tonyrodz
Resident Resident
What could happen if the flexplate breaks? Catastrophic damage?
I’m being told my engine is bad
- Thread starter Michigan
- Start date
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I can only imagine, a metal saw type thing spinning at 2500rpm and deciding i'm going to just go this way...or maybe just fling myself around inside and screw everything up, couldn't be good, I think that why race cars have to have guards installed in case that thing decides to cut loose.
Tonyrodz
Resident Resident
That would suck for sure. I think I'm having the same issue with my van--similar symptoms.
1984 I had a Camaro I built. Since I was running a triple stage Nitrous system I added a safety blanket to the 700R4 I had built myself.
Flex plate went grenade so glad I had that!
Flex plate went grenade so glad I had that!
pwol1962
TYF Newbie
I had one of the bolts come loose that secures the torque converter to the flywheel on my 2001 Yukon several years ago. The bolt was being knocked around by the rotation of the flywheel/torque converter and it sounded exactly like your posted audio recording
SRQYukon
Full Access Member
I'm not weighing in on what it might be except to say that when my cat failed at 79K it did not sound like that. I actually thought it was a loose heat shield on the cat. Sounded like sheet metal rattling. I was really surprised when the tech at the dealer told me that the guts had come loose and just 1000 miles before my emissions warranty expired. And mine didn't make any discernible sound above 1200 rpm. BTW, I gotta love the self-confidence you all have, but everyone can't be right. Or at least for his sake I hope it's not "all of the above".
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then he would have 420 stoner code
jeffsyukon
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Mine didn't smell. No 420 code. Just noisy and turned out to be the catylitic converter. Sounded like rocks banging around in the exhaust pipe. The noise was intermittent and very loud at times.
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OP
OP
Michigan
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Ok so just got the call from shop I dropped the truck off to and the guy said he’s 100 percent certain it’s a bad cat.
What are my options here? He said about 800 to replace the whole h pipe with the 2 catalytic converters which I thought was way high.
I read that it’s not illegal to remove a non functioning cat. I read that only if you remove a fully functional cat that it’s illegal. In my state we don’t have inspection
The guy did tell me that gas mileage and performance will suffer if we straight pipe it. Thoughts?
also now that we know it’s a bad cat, is it ok to drive like that till I get it fixed? I’m assuming it is ok
Not sure where the guy is coming up with 800 but so far from a quick search I found this http://vi.raptor.ebaydesc.com/ws/eB...ategory=33629&pm=1&ds=0&t=1559682870000&ver=0
Not sure if that is cheap quality but it shouldn’t be anymore than a 100.00 to install I’m guessing as it’s a direct bolt on.
What are my options here? He said about 800 to replace the whole h pipe with the 2 catalytic converters which I thought was way high.
I read that it’s not illegal to remove a non functioning cat. I read that only if you remove a fully functional cat that it’s illegal. In my state we don’t have inspection
The guy did tell me that gas mileage and performance will suffer if we straight pipe it. Thoughts?
also now that we know it’s a bad cat, is it ok to drive like that till I get it fixed? I’m assuming it is ok
Not sure where the guy is coming up with 800 but so far from a quick search I found this http://vi.raptor.ebaydesc.com/ws/eB...ategory=33629&pm=1&ds=0&t=1559682870000&ver=0
Not sure if that is cheap quality but it shouldn’t be anymore than a 100.00 to install I’m guessing as it’s a direct bolt on.
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