These things can get a bit warm normally. Check to ensure that your cat or pre cats (depending on year) are not glowing red.
Excessive Cabin Heat
Le Mans Master
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From: Tampa Florida
Le Mans Master
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From: Irvine Ca
^^Yup, Cats.....
I went with a silencer on another car I was building...the amount of heat from the tube was reduced dramatically.
Old School American Steel cars, you could get away with no A/C even in hot Texas summers....but not the newer cars with Cats, you have to have a/c or you could get heat stroke in these cars....
I went with a silencer on another car I was building...the amount of heat from the tube was reduced dramatically.
Old School American Steel cars, you could get away with no A/C even in hot Texas summers....but not the newer cars with Cats, you have to have a/c or you could get heat stroke in these cars....
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Nope, I have an auto and the heat is rediculous after it's been running for awhile. Engine and tranny temps are normal so it would make sense if it's the cats. The question now is to replace them, hollow them out, or go with straight pipes? I do have emissions testing I have to go through with it, but I doubt anyone is going to get under this thing to check for cats with how low it is. What are the suggestions? Also, does the aftermarket make o2 simulators for these things?
Le Mans Master
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Depending on your emission test requirements you will most likely not pass if you remove the cats. They don't looks to see if you have them .... you just willl not be able to pass the test if you don't have them. There should be a metal heat shield between each cat and the floor pan of the car. Jack it up (safely) and get underneath and check to see if one or more of them have fallen off.
I don't see any indication of what year car yours is so I'll assume it's an LT1. Your cats are on each side of the trans and the heat is probably coming from the trans tunnel rather than the firewall.
I don't see any indication of what year car yours is so I'll assume it's an LT1. Your cats are on each side of the trans and the heat is probably coming from the trans tunnel rather than the firewall.
Last edited by Mr. Peabody; Sep 28, 2009 at 05:19 PM.
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Depending on your emission test requirements you will most likely not pass if you remove the cats. They don't looks to see if you have them .... you just willl not be able to pass the test if you don't have them. There should be a metal heat shield between each cat and the floor pan of the car. Jack it up (safely) and get underneath and check to see if one or more of them have fallen off.
I don't see any indication of what year car yours is so I'll assume it's an LT1. Your cats are on each side of the trans and the heat is probably coming from the trans tunnel rather than the firewall.
I don't see any indication of what year car yours is so I'll assume it's an LT1. Your cats are on each side of the trans and the heat is probably coming from the trans tunnel rather than the firewall.
Le Mans Master
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From: Irvine Ca
The O2 sensors should be in front of the Cats.....But that LT1 has four so I am not sure...maybe I heard that there were 2 in front and 2 behind the Cats.....
I'd not pull the Cat out. I would however go to a "real" muffler shop and ask for a "test" pipe. If this cures your problem then you may want to swap out the Cat for a Magnaflow or a Flowmaster equivalent new cat.
They also can install heat shields for you......again a "real" muffler shop....Midas does not really fit into that description.....
These guys are in Buena Park and they are EXCEPTIONAL.......
I'd not pull the Cat out. I would however go to a "real" muffler shop and ask for a "test" pipe. If this cures your problem then you may want to swap out the Cat for a Magnaflow or a Flowmaster equivalent new cat.
They also can install heat shields for you......again a "real" muffler shop....Midas does not really fit into that description.....
These guys are in Buena Park and they are EXCEPTIONAL.......
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The O2 sensors should be in front of the Cats.....But that LT1 has four so I am not sure...maybe I heard that there were 2 in front and 2 behind the Cats.....
I'd not pull the Cat out. I would however go to a "real" muffler shop and ask for a "test" pipe. If this cures your problem then you may want to swap out the Cat for a Magnaflow or a Flowmaster equivalent new cat.
They also can install heat shields for you......again a "real" muffler shop....Midas does not really fit into that description.....
These guys are in Buena Park and they are EXCEPTIONAL.......
I'd not pull the Cat out. I would however go to a "real" muffler shop and ask for a "test" pipe. If this cures your problem then you may want to swap out the Cat for a Magnaflow or a Flowmaster equivalent new cat.
They also can install heat shields for you......again a "real" muffler shop....Midas does not really fit into that description.....
These guys are in Buena Park and they are EXCEPTIONAL.......
Le Mans Master
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From: Orlando FL
I think only starting in 96 that they had the 4, O2 sensors. It is basically for the OBD2 setup. The rear 2 only check the exhaust but the fronts are the ones that change the A/F mix.
I believe the 95 has 3, O2 sensors as does the 94.
Just a far out thought. I’m sure you are running the A/C this time of year and it is OK. Even if the system was off if the mix door was in the heat position it will let heat in the car.
I believe the 95 has 3, O2 sensors as does the 94.
Just a far out thought. I’m sure you are running the A/C this time of year and it is OK. Even if the system was off if the mix door was in the heat position it will let heat in the car.
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I think only starting in 96 that they had the 4, O2 sensors. It is basically for the OBD2 setup. The rear 2 only check the exhaust but the fronts are the ones that change the A/F mix.
I believe the 95 has 3, O2 sensors as does the 94.
Just a far out thought. I’m sure you are running the A/C this time of year and it is OK. Even if the system was off if the mix door was in the heat position it will let heat in the car.
I believe the 95 has 3, O2 sensors as does the 94.
Just a far out thought. I’m sure you are running the A/C this time of year and it is OK. Even if the system was off if the mix door was in the heat position it will let heat in the car.
Also, the cats are a viable reason for the heat since I had a bad o2 sensor causing the car to dump fuel for awhile so it wouldn't surprise me if the cats are gone knowing that the previous owner couldn't fix the problem either.
Le Mans Master
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Correct on the LT1 (95), the heat shields are on both the cats (been under it a lot lately dealing with o2 problems and a power steering leak that is yet to be fixed). It does seem like it is coming more from the tunnel as well, but very low on the tunnel. I also think there is a tranny heat shield in there, but I can't recall off the top of my head.
. A lot of guys pull up the carpet and install an aluminized heat shield mat under the carpet. And your 95 does have 3 02 units, two in front and one behind.
