Friends 2002 Sienna, always feels like you're driving up hill or pulling a trailer. There's no codes, but there is a small exhaust noise from somewhere underneath. This van has a trailer hitch and connector on the back. Are they setup differently than say a regular Sienna like I have? Would a leaking or obstructed exhaust throw a code ?
TomLine
I've had cars with failed exhausts that caused severe power loss. If you put your had say an inch or so away from the tailpipe opening while somebody revs out the engine you can feel how much air the vehicle is putting out. You could try comparing your Sienna to your friend's with that test. When the vehicle has a clogged exhaust it will sound constipated when you rev it out compared to a normal exhaust. Sorry I have no answers for your other questions.
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My 2003 developed a slight noise in the exhaust. A small leak in the muffler.
I bought all new Walker brand items through Rockauto.
Walker built the original system.
I used a "diablo" thick blade with my reciprocating saw to cut through the rusted bolts where the pipe from the muffler connects to the pipe out of the rear catalytic converter.
A bit expensive, but worth it. I got mine at Home Depot, so they should be easy to find.
As far as "Straining" With the A/C engaged (includes when defrost is on), there is a wining sound from the engine compartment. That is NORMAL and not a problem. It is the sound of the compressor and the belt driving it.
I bought all new Walker brand items through Rockauto.
Walker built the original system.
I used a "diablo" thick blade with my reciprocating saw to cut through the rusted bolts where the pipe from the muffler connects to the pipe out of the rear catalytic converter.
A bit expensive, but worth it. I got mine at Home Depot, so they should be easy to find.
As far as "Straining" With the A/C engaged (includes when defrost is on), there is a wining sound from the engine compartment. That is NORMAL and not a problem. It is the sound of the compressor and the belt driving it.
wiswind how long and how many miles ago did you did the repair?
The reason I ask is because several people have posted about replacing their exhaust systems with non-Toyota parts only to have trouble codes (like P0420) within a year or less apparently because the replacement cats have far less platinum than the originals.
The reason I ask is because several people have posted about replacing their exhaust systems with non-Toyota parts only to have trouble codes (like P0420) within a year or less apparently because the replacement cats have far less platinum than the originals.
OK.....I did NOT replace any of the catalytic converters (there are 3).
One might call it a "cat back"......everything from the last catalytic converter back was replaced.
These parts have been on for a year now.
In the first picture, where the 2 exhaust systems are side by side, the end closest to you is the end the connects to the pipe out of the back of the last catalytic converter.
I had to get new bolts & nuts to connect it. A gasket goes in there also.
One might call it a "cat back"......everything from the last catalytic converter back was replaced.
These parts have been on for a year now.
In the first picture, where the 2 exhaust systems are side by side, the end closest to you is the end the connects to the pipe out of the back of the last catalytic converter.
I had to get new bolts & nuts to connect it. A gasket goes in there also.
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