stadlgi
Forum Newbie
Posts: 14
Reg: 12-08-10
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 07-03-12 08:16 PM - Post#2244230
Anyone ever experience having the bottom O2 sensor
blow out of the y-pipe while going up a steep hill
with no load aside from the weight of the vehicle?
I did, today. 93 C1500 W/T with 4.3 liter. The
O2 sensor blew out and the exhaust got real loud.
At first I though it was a split exhaust, not so.
Now the million dollar question, it seems that it
rusted around the threads. Is there a cheap fix
that will put it back until I can save up for a
new exhaust system and O2 sensor?
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rockfangd
Contributor
Posts: 544
Age: 27
Loc: Utica ny
Reg: 04-13-10
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07-03-12 09:38 PM - Post#2244261
In response to stadlgi
a couple things to think of.
if sensor was replaced it may have messed the threads.
They sell a bung for the o2 sensor if you can weld.
They even have a clamp on bung now that acts as a band clamp around the pipe and all that is required is to drill the hole in the pipe.
To me though welding a new bung is probably the best thing to do.
they can blow out when they rot.
But the real question is how good is the rest of the crossover pipe
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355Cheyenne
Senior Member
Posts: 3743
Loc: Northern MN
Reg: 10-27-04
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07-03-12 11:10 PM - Post#2244283
In response to stadlgi
I bet you the bung is o.k. and the sensor blew apart, are there any threads on the sensor? I am thinking the threaded section is still in there...
| 98 Silverado k1500 4x4 350 |
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nickmac
Frequent Contributor
Posts: 1040
Loc: Scandia, PA
Reg: 02-13-07
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07-04-12 04:56 PM - Post#2244552
In response to 355Cheyenne
If the o2 sensor blew out, I would also look at the cat converter to see if it is plugged up at all.
Dan
'91 Chevy Ext. Cab 5.7 4x4
'05 Chevy TrailBlazer 4.2 4x4
'02 Pontiac Bonneville 3.8 |
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rockfangd
Contributor
Posts: 544
Age: 27
Loc: Utica ny
Reg: 04-13-10
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07-04-12 06:37 PM - Post#2244577
In response to nickmac
thats a good point. all that backpressure has to go somewhere if the cat is plugged
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drtyler (4)
