So I'm having a problem with my '93 honda Accord loosing all power at around 4k rpm's. Without going into all the details, fuel pressure is good, Air intake is good, replaced almost all the ignition parts, coil, wires, dist/rotor, etc. I've been told that its probably most likely a clogged catalytic converter, and I was hoping I could take it off and clean it out real good with some seafoam.
Heres the problem though, the bolts on the cat are so rusted, I don't think its possible to get them off, the whole joint almost seems fused together.
I came up with an idea and was wondering if it was good. Or if anyone has a better idea. I was thinking about drilling a small hole in the exhaust right before the cat, and spraying a whole lot of seafoam/deep creep in there (since they say its cat safe), and then sealing up the hole afterwards with some JB weld.
If not maybe I could unbolt the whole exhaust at the headers (which I think will be stuck together pretty good). What should I do?
2007-12-30 07:48:17 · 8 answers · asked by Rockstar from another dimension 1 in Cars & Transportation ➔ Maintenance & Repairs
I also forgot to mention, the timing is good also, so that can't be it. I'm hoping to not take it to a professional because I don't have the money to do so.
2007-12-30 08:57:39 · update #1
I just thought of a better idea rather than drilling a hole and patching it. Couldn't I just unscrew the O2 sensor located a couple feet before the cat, and spray a whole bunch of seafoam/deep creep in the hole. (And maybe on the O2 sensor also just to get it nice and clean). This stuff is supposed to be O2 and Cat safe, so this can't hurt right, and might unclog the cat at least a bit?
2007-12-30 09:15:06 · update #2
Just go to an exhaust place and get a new cat put on the car.
2007-12-30 11:48:11 · answer #1 · answered by mister ss 7 · 0⤊ 1⤋
Catalytic converters are not made to be cleaned once they stop up you will need a new one.
Best locate the source of causing it to stop up. which can be not only using leaded gas, excessive oil consumption by your engine, but also the one most people over look, cheap gas from cut rate stations.
The temptation to save a couple bucks at the gas pumps will always cost you a lot more in the end. Lost count long ago on how many valve jobs I've had to do on my own vehicles for that very reason. Just couldn't resist that 10 cents a gallon cheaper gas for some reason and I know better.
If you are losing power at 4,000 RPM's sounds more like timing problem, timing belt getting sloppy with wear, or compression problem. You should can your timing belt every 40.000 to 50,000 miles at least. Have you ran an open compression test on it engine? If not by that I mean pull all spark plugs before running the compression test.
Here is something else to look for. The inner lining on the exhaust pipe could have collapsed on you as well instead of it being the Catalytic converter if your exhaust system is double walled. Or it could be the muffler not likely but possible.
Something else to look for is partly clogged injectors and fuel filter, when is the last time you changed the fuel filter and air filter?
Something else you might try is running some injector cleaner through you fuel system. Use Chervon Techron for that. Not those big box store cleaners. Again you get what you pay for.
2007-12-30 09:56:44 · answer #2 · answered by JUAN FRAN$$$ 7 · 0⤊ 1⤋
This Site Might Help You.
RE:
Unclogging a Honda Accord Catalytic Converter. Does this sound like a good idea?
So I'm having a problem with my '93 honda Accord loosing all power at around 4k rpm's. Without going into all the details, fuel pressure is good, Air intake is good, replaced almost all the ignition parts, coil, wires, dist/rotor, etc. I've been told that its probably most likely...
2015-08-06 06:53:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Well this is nuts. I have never heard of cleaning a cat. I have been repairing cars for over 35 years.
First I would not do it, and I dont think it is th cat at all. A cat gets pluged up when people put leaded gas in and unleaded car. A 93 used unleaded from the day it was made.
If the cat is stopted up, how did it get that way.
I would check the timing belt, as if it has a lot of miles on it , the timine will change and it is a more likly thing to suspect then a stopted up cat.
2007-12-30 08:00:55 · answer #4 · answered by goldwing127959 6 · 1⤊ 1⤋
You are probably correct about the cat converter, but wrong about cleaning it out. This is strictly a professional job. They will cut out the worn unit and replace it with an aftermarket unit that is legal and quiet.
Your problem is a common one, and there are cheaper after market units now.
Usually the reason they clog is due to the type fuel used or oil consumption from the engine.
A catalytic converter is a furnace, that burns different chemicals in the unburned exhaust.If the air supply to it is stopped or disconnected, the furnace burns out.
2007-12-30 08:05:19 · answer #5 · answered by Wisdom 6 · 1⤊ 0⤋
There are some converters that are approved for Ithink 49 states. Go online and search; Automotive Exhaust or Walker Exhaust or AP Mufflers and Exhaust Look on Craigs List for a mechanic in your area that is trying to feed his family and you'll get a fair price.
2016-04-02 12:37:41 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Are you getting some looney advice from a friend or someone???
You cannot repair a catalytic converter....they burn out and melt on the inside from the tremendous heat and wear out.....you must replace them.....I had a 94 cavalier cc replaced last year parts and labor $160........
2007-12-30 10:20:21 · answer #7 · answered by Anonymous · 0⤊ 0⤋
what i would do is just take the cat off the car it only takes 6 bolts buy new ones befor an new gaskets so the job go well an look throught it i have been told that it is like a honeycone an see if it is cloged
2016-02-20 02:43:00 · answer #8 · answered by Anonymous · 0⤊ 0⤋