I have this vehicle, which keeps blowing out the catalytic converter, its been replaced 3 times in the last month, and the mechanic doesnt know why, he refuses to put another one on it, until he figures this out.
View 3 RepliesMy husband,who is an engineer and has done all of our car maintenance for decades is stumped by our 2000 Mazda MPV. He replaced the catalytic converter and put every thing back together, but the car won't run. Will start, but dies right away. Took off new cat,and runs with that off, but not sure why it won't run with the cat on.
View 4 RepliesI just failed inspection because check engine light is on. The codes state that catalytic converter and O2 sensor are "not ready". I understand it has to do with the computer but not much else. Someone on Mazda 6 message board provided a complicated sequence of driving instructions including maintaining various speeds and RPMs for specific lengths of time which they said would reset the computer. My mechanic is at a loss. This car is a lemon and I would just like to get the inspection done so I can trade it in and get something that doesn't keep breaking.
View 6 RepliesCar recently acted like it was running on two or three cylinders and cel came on and continued to flash. The shop that did the repairs is no longer a Mazda dealer, but has a factoy trained tech. Don't know the code #, but was told that there was a low voltage code, and a misfire code. The battery was replaced, throttle body cleaned and a new fuel filter installed. The cel came back on about 25 miles later. They rechecked the codes. Said it could be the converter, and cleared the code again. After about 150 miles, the cel came on again but the car ran normal. Talked to the shop again and was told the the converter problem would have to be serviced at a Mazda dealer. The engine did the running on three cylinder thing again. Since then, it seems to run ok but the light is still flashing. If the OEM converters are fragile are there better options for replacement? The car has 30,000 miles.
View 4 RepliesI have a 2000 Chevy Camaro. Two years ago my catalytic converter went out and I had it replaced. 20,000 miles later my mechanic says that I need to replace it again. Is this accurate? I thought the life of a Catalytic Converter was much longer.
View 2 RepliesI own a 2000 E 250 Econoline van with 170,000 miles. I've been encountering loss of power on acceleration for months. Terrible gas mileage (8-10 mpg) and just recently, I get that rotten egg smell when I gun it and and travel above 65/70. I can feel heat from under the van when i step out as well. I've been blowing individual coil packs every other month after a long drive with a lot of inclines. It all points to a clogged catalytic converter. This van has 3. A front left and right by the manifolds, and a large one before the muffler. My question is, what causes them to go bad? I want to fix the cause before spend the money on new cats. Ive heard a rich fuel mixture could do it. Are there sensors that need to be changed?
View 1 RepliesThat Car Grand AM 2000 2.4L SE
The current problem with the car is that it is not accelerating fast, for example i would push the petal to the metal and only go 25 mph and my RPM would be 3000-4000. Initial my brother and cousin though it was the Catalytic converter because it was getting hot but that has recently been change along with the fuel filter and spark plugs. but the catalytic converter is still gets red hot so i forbid myself from driving it till i fix what every causing the slow acceleration and the temperature of the Cata when i took the error code think P0300 random misfire to the local Autozone they printed me a long list of things that could be a issue my question is what is the likely culprit so i can fix those 1st before shelling out cash to rebuild a engine. may just have to get rid of it at that point. so i guess what am asking is a list maybe top 10 so i can fix them one by one as my money comes in.
Before the accelerating issue the car would randomly stop when i slowed down or stooped that when i replace the spark plugs.
My 2000 Forester has 96,000 miles on it. A few months ago, the CEL came on. At first it would turn off every couple of days but would eventually pop back on. I first thought it was tied to putting gas in the car, now I think it was just a coincidence.
Over the past two months, I have replaced the catalytic converter with a aftermarket piece (done by a mom and pop muffler shop) and replaced the front o2 sensor three times. The first two times, I used Bosch sensors from an auto parts store and had the code cleared. After about 50 miles the CEL came back on. Just yesterday, I picked my car up from the dealership where they installed a Subaru fron o2. After about 30 miles, the light is back on again. Code is P0133 - heated oxygen sensor, bank 1 sensor 1, circuit slow response.
Now, the dealership is suggesting I need to replace the catalytic converter with a Subaru converter before they can source the issue.
Long story, I'll try to make this short, 2000 E250 5.4L What would or could happen if the catalytic converter was removed from the exhaust system?
View 5 RepliesSo, something odd happened to me today while driving. I was getting off a highway after about 250 miles of driving, downshifted from 5th to 4th, and when I hit the gas pedal after shifting, nothing. No acceleration. I shift back to 5th. Still nothing. Try revving in neutral, also nothing. I come to a stop on the exit ramp and try to start the car up. It starts up, hits about 1k rpm and stalls. Gas pedal does nothing still. What's up with this? I had it towed to my shop.
Couple tidbits of info: just had the oil changed three days ago. Checked the oil and it seems fine. I have an aftermarket he's unit in the car and lately, it's been a little wonky. When I put use my automatic windows, sometimes the volume will mute for a sec.
My car is a 2006 Mazda Miata base model. 5 speed manual. Power windows but not locks. No traction control. No cruise control. 40,000 miles. Oil changed regularly with full synthetic.
My car often backfires on downshifts. It happens as I?m decelerating in gear, and then blip the throttle to match the higher rpm of the lower gear. The car runs well and is well maintained. The spark plugs, MAF sensor, O2 sensors, and cat are all in good order. I?m confident the air/fuel mixture is working as intended by Mazda (at least under normal driving), so I?m not looking for a mechanical culprit. I?m sure it?s my style and frequency of downshift/rev matching which causes the backfires.
It happens anywhere from 1-2 times a week to 1-2 times a day depending on my driving, or on something like 2-5% of all downshifts. Personally, I rather like excitement of the backfires and the exhaust burble which accompanies them, it makes me feel like I'm in a race car. My question is whether frequent backfiring is going to drastically reduce the life of my catalytic converter and O2 sensors.
I don't mind replacing the cat 5 years from now instead of say 10, but I don?t want to have to replace it within the next 10,000 miles or less. My Miata is a 1999 model with 130,000 miles on it. The exhaust system uses stock manifold and muffler but with an AEM performance intake and monsterflow catalytic converter.
Last week the shift got stuck in Park. I used the emergency release button to get into Drive. After this happened several times I took it to the mechanic who said the shift needed replacing. Got a new shift. The problem persists. I get stuck in Park about 1 in 6 times.
View 3 RepliesProblem: car cranks but doesn't start then randomly it will start. 2 different shops...first thought maybe battery (no it cranks) but said these cars are notorious for cam sensor problems they didn't have software to diagnose. Brought to dealership again battery (we were finally beat down and replaced battery) ...then brought home if car sat for a few days totally dead needed jumpstart....brought back to dealer they replaced cam sensor and timing belt...went to pick it up and you guessed it....cranked but didn't start....mechanic came out and it started....so after replacing several parts we are back to the same problem intermittent crank without start...
View 4 RepliesI have a Mazda Miata 2001, 152,000 miles. It's developed a metallic scrape from the right rear wheel. When I'm driving about 20 mph it sounds like a scritch every half-a-second or so, and if I'm going faster it just blurs into a metallic scrape. When I tap the brakes, it usually stops, and then it'll come back a little bit later (maybe when I hit a bump?) It comes and goes, but it seems to be more persistent now (or maybe I'm just always listening for it).
I took the wheel off and sprayed brake cleaner everywhere and I thought that had fixed it, but it came back again after a week maybe.
I have a 1990 Mazda Miata, and the AC is not working. It has been switched over to R134a. I took it to a mechanic to have it recharged a few weeks ago. He said that one of the o-rings was cracked and so it was leaking around that. He filled it up and put some stop leak in it and for awhile it seemed to work fine. Then it stopped blowing cold air. I took it to a jiffy lube just to have the level of coolant (correct term?) checked. The person there told me that it was very low and was leaking around the valve stems. I tightened the valve stems and re-filled it. After 24 hours it had stopped blowing cold air again. I got a price quote on a new compressor and it is about $500.
So - my question is this - should I just put a new compressor in or is there something cheaper I could try first?
I have a 2007 Mazda Miata that I just found standing water under the passenger seat. Took it to dealership the drain is plugged if I had brought the car in when under warranty they would have done the retrofit it needs to fix their lousy design problem for free. I am trying to talk to Mazda and the dealership about them fixing the problem for free. They issued a in house service bulletin but not to the public.
View 6 RepliesI've got a '94 Mazda miata which is in good shape, with among other things a fair number of suspension upgrades. It drives really well, other than the clunk. On the occasional bump it clunks as if something is loose on the driver's side rear. I've checked the shocks, springs, jacked it up and inspected everything I can think of. I'm looking for wisdom from your decades of experience (in your terms wasted time) on what it might be.
View 3 RepliesMy Miata stalls out on the highway but not on residential streets. If I open the gas tank ,it starts up again. This has happened with a full tank, 1/2 tank and 1/4 tank. How can I fix this?
View 9 RepliesI have a 91 Miata Auto. I bought it from someone that (I think!) never drain auto trans fluid during its 145K mile life. So last year I replaced all the gaskets/filters and tuned up the car. It runs fine except shifting harsh in cold weather. I have to mention that it seem to have no power and goes very slow on first few minutes.I used a pump to suck trans fluid out. It was so dark (even I dropped the trans pan and replaced filter/gasket). Then I pumped Lucas trans fix fluid in and it seem to improve. What should I do more to reduce the harsh shift condition in cold weather? Or is there a booster module need to be replaced?
View 6 RepliesI have a 2001 Miata. It's been over 100 degrees daily lately. The AC will blow sort of cold for about 30 minutes and the temp gauge will move towards the H hashmarks. If I turn the AC off, the gauge will slowly drop. I've also noticed that the amount of cold air is decreasing as time passes. In fact, the other day, the system was blowing air hotter than the outside temperature after about an hour drive.
The viewing glass has bubbling stuff flowing thru it. The recently flushed radiator is full as is the overflow reservoir.
So i was cleaning my 2007 mazda miata and i noticed one wheel has some fairly deep scratched grooves inside of it. I inspected all the other tires and the other front tire has similar marks but they are way way more of a surface/barely there scratches. The rear wheels are not scratched. I am also hearing a rotational noise when i drive. It gets faster as I accelerate and slower when I brake. I don't know anything about cars.
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