Engine Rattle When Revving over 5k
05-26-2006 | 10:50 AM
#76
Registered User
Joined: Apr 2006
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Originally Posted by stickman
Is it related to the engine tempeture? If it is, it may just be some relays opening up as the car warms up. I would still have the dealer check it out though.
05-26-2006 | 03:23 PM
#78
I don't buy Kool-Aid
Joined: Apr 2004
Posts: 8,823
Likes: 2
From: Vegas Baby!
Originally Posted by Terrance26
get your pcm reflashed the same thing use to happen in my AT. The dealer sent the pcm to california to be recalibrated. It fixed the problem. Trust me you need a reflash. It sounds like marbles in a blender.
06-03-2006 | 06:45 PM
#82
I don't buy Kool-Aid
Joined: Apr 2004
Posts: 8,823
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From: Vegas Baby!
I dont know but take a look at this and tell me what you get from all this.
I have owned my 8 since August of 2003. Was ready to buy one when the 8 was refered to as the Evolve.
I am about to turn 50k. Around 30k, my car started acting up. Big power loss when driving over an hour a day. I am talking about major power loss. Fans would run for 30 minutes after shutdown. My cup holders were cup warmers. My truck was a toaster oven. I am aware that rotaries have fought heat from birth. No CEL either. There are a bunch of threads that have the same issue. I can almost bet your CAT is gone.
Getting rid of the car has or never will be my option, unless its is wrecked. Contacted Mazda North America several times, which I recomend. Took the car to Memphis dealerships and Jackson dealership. The dealers have not a clue. Told me to bring it by when it was acting up. Did that. Nothing. I started feeling like I was crazy. Maybe its something I have done? No.
New intake, new plug wires, new clutch, new pressure plate, new flywheel, new plugs, reflashes to CPU, different gas. and repeated resets to both memory banks.
As hard as I tried, the more it became more of an issue. For starters, my gas mileage was dropping to 180-200 miles a tank. All these parts I am throwing on are physicaly more effecient than a stock 8. The dealer at one point ruled out the CAT. This is after telling them I heard a leak from exhaust somewhere. Nothing.
About a week ago, I jacked my car up high enough to take a gander at the exhaust system. Did you know the CAT is the lowest point in ride height? Did you know the parts inside the CAT are very delicate? There was some battle damage. I ordered a midpipe that moment. This was the only thing left before giving up on the hunt.
Son. Not only did I solve the problem, but I got a bad *** car. This thing will freakin move man. No CEL after 600 miles.
When you shake the CAT, you can hear bits and pieces inside. It is a two stage CAT. The sensor is between the two. If the Aft section goes, no CEL. Mazda will not address this. So I had to take it in my own hands.
Its hard to say what kind of gas mileage the car gets. It just wants to tumble those rotars. I am getting way better than I ever have. I bet she could go to 275-300 a tank.
Try cleaning your MAF sensor first. Run some octane boost. If that does not solve it. I would really consider looking at your CAT.
So if we dont red line our 8 every other day at 50,K miles I'm going to have to pay $3,K for a new intake? Great one more thing to add to the list and when people do red line they say it sounds like:"Marbols in a blinder" So now I'm like WTF?
It sounds like marbles in a blender right?
Yes you do need to redline every other day or you'll get carb build up. I have never heard of "bad gas".
So if we dont red line our 8 every other day at 50,K miles I'm going to have to pay $3,K for a new intake? Great one more thing to add to the list and when people do red line they say it sounds like:"Marbols in a blinder" So now I'm like WTF?
To me, it sounds like Mazda dont want to do a recall on there CAT's.
Originally Posted by zoom44
there wer a few with a bubble in some castings causing coolant seal failures. not the seals themselves that were bad but a casting error in the housing. sorry to hear you got one
Originally Posted by turbine
I have owned my 8 since August of 2003. Was ready to buy one when the 8 was refered to as the Evolve. I am about to turn 50k. Around 30k, my car started acting up. Big power loss when driving over an hour a day. I am talking about major power loss. Fans would run for 30 minutes after shutdown. My cup holders were cup warmers. My truck was a toaster oven. I am aware that rotaries have fought heat from birth. No CEL either. There are a bunch of threads that have the same issue. I can almost bet your CAT is gone.
Getting rid of the car has or never will be my option, unless its is wrecked. Contacted Mazda North America several times, which I recomend. Took the car to Memphis dealerships and Jackson dealership. The dealers have not a clue. Told me to bring it by when it was acting up. Did that. Nothing. I started feeling like I was crazy. Maybe its something I have done? No.
New intake, new plug wires, new clutch, new pressure plate, new flywheel, new plugs, reflashes to CPU, different gas. and repeated resets to both memory banks.
As hard as I tried, the more it became more of an issue. For starters, my gas mileage was dropping to 180-200 miles a tank. All these parts I am throwing on are physicaly more effecient than a stock 8. The dealer at one point ruled out the CAT. This is after telling them I heard a leak from exhaust somewhere. Nothing.
About a week ago, I jacked my car up high enough to take a gander at the exhaust system. Did you know the CAT is the lowest point in ride height? Did you know the parts inside the CAT are very delicate? There was some battle damage. I ordered a midpipe that moment. This was the only thing left before giving up on the hunt.
Son. Not only did I solve the problem, but I got a bad *** car. This thing will freakin move man. No CEL after 600 miles.
When you shake the CAT, you can hear bits and pieces inside. It is a two stage CAT. The sensor is between the two. If the Aft section goes, no CEL. Mazda will not address this. So I had to take it in my own hands.
Its hard to say what kind of gas mileage the car gets. It just wants to tumble those rotars. I am getting way better than I ever have. I bet she could go to 275-300 a tank.
Try cleaning your MAF sensor first. Run some octane boost. If that does not solve it. I would really consider looking at your CAT.
Originally Posted by motorog
I Have A 04 Rx8 6spd With 50,800 Miles, Just Out Of Warranty.
1. My Engine Light Came On And I Had No Power Above Mid Rpms.
2. Took My Car To The Dealer And They Called Me Telling Me It Was My Intake And That Carbon Deposits Were Interfering With The Butterfly In the Intake Not Allowing It To Open, Setting Off The Engine Light. They Said If The Intake Doesnt Open Completely Above 4800 Rpms Then The Light Would Come On. I Asked If It Could Be Cleaned And He Said You Can Take A Injector Out And Try To Clean It But It Most Likely It Will Not Reach The Area Due To Where It Is And Probaly Wont Help For Long.
3. They Said The Tech Support Said They Had This Occur With Rx8's With Higher Mileage Still In Warranty.
4. I Called A Mazda Rep And Explained The Problem , Then They Called The Same Service Manager And Told Him To Call His District Supervisor To See If He Would Help With The Cost.
5. Who Wants To Pay 3200. Every 50,000 Miles To Keep A Car Running Well. I Could Unerstand If It Was A Clutch Or Something That Is Supposed To Wear.
Sorry This Is So Long, Anyone Have This Problem Or Ideas, Now Im Thinking Of Buying A Mustang Because Of The Several Problems I Have Had In The Past Also. Thanks Roger
1. My Engine Light Came On And I Had No Power Above Mid Rpms.
2. Took My Car To The Dealer And They Called Me Telling Me It Was My Intake And That Carbon Deposits Were Interfering With The Butterfly In the Intake Not Allowing It To Open, Setting Off The Engine Light. They Said If The Intake Doesnt Open Completely Above 4800 Rpms Then The Light Would Come On. I Asked If It Could Be Cleaned And He Said You Can Take A Injector Out And Try To Clean It But It Most Likely It Will Not Reach The Area Due To Where It Is And Probaly Wont Help For Long.
3. They Said The Tech Support Said They Had This Occur With Rx8's With Higher Mileage Still In Warranty.
4. I Called A Mazda Rep And Explained The Problem , Then They Called The Same Service Manager And Told Him To Call His District Supervisor To See If He Would Help With The Cost.
5. Who Wants To Pay 3200. Every 50,000 Miles To Keep A Car Running Well. I Could Unerstand If It Was A Clutch Or Something That Is Supposed To Wear.
Sorry This Is So Long, Anyone Have This Problem Or Ideas, Now Im Thinking Of Buying A Mustang Because Of The Several Problems I Have Had In The Past Also. Thanks Roger
Originally Posted by rx8dude907
but is this because the car wasnt redlined enough that this happened to the intake?
Originally Posted by olddragger
This is usually a result of overfilling the oil and the engine blowing it back into the airway. also check your oil coolers to make sure there are no leaks that can be drawn inside the airway. olddragger
Originally Posted by KuzuRyuuSen
man, that is exactly what i got. i went to Kroger at 3 am in the morning. when put my stuff on my passenger seat through the right door, i tried to punch the dashboard from the right side, i could hear the rattle, now i'm certain it's from inside the dash board what i mean is i turned the a/c to HOT and turned the fan level to 3. this rattle only occurs at certain temperature, when the ambient temperature is cold, it's perfectly fine. somehow it rattles only at around 15-26 degrees C. No, it rattles when i hit into a bump
Originally Posted by trabilc2
I got my car about a month ago from the dealer....shortly after I heard a
loud rattling noise when I took it to 6500rpms..... I have an automatic with the tiptronic.... So I bring it in to be checked....and sure enough, a new transmission was ordered and installed.... The loud rattling noise is back, but i doubt it's the transmission....it sounds like I am dragging coke cans....any help or suggestions would be appreciated!!!
loud rattling noise when I took it to 6500rpms..... I have an automatic with the tiptronic.... So I bring it in to be checked....and sure enough, a new transmission was ordered and installed.... The loud rattling noise is back, but i doubt it's the transmission....it sounds like I am dragging coke cans....any help or suggestions would be appreciated!!!
Originally Posted by Terrance26
get your pcm reflashed the same thing use to happen in my AT. The dealer sent the pcm to california to be recalibrated. It fixed the problem. Trust me you need a reflash. It sounds like marbles in a blender.
Originally Posted by DreRX8
Check the A/T section--you need to run it to redline from time to time--second, what gas are you using? I have an A/T and the one time I had this issue and took it to the dealer--it was due to bad gasoline. Other than that I haven't had any problems with my car except for the collapsed motor mounts--which they replaced an about an hour last Friday.
Originally Posted by rx8dude907
but is this because the car wasnt redlined enough that this happened to the intake?
To me, it sounds like Mazda dont want to do a recall on there CAT's.
06-05-2006 | 03:42 AM
#83
Jst wnt a relibl Turbo
Joined: Oct 2005
Posts: 89
Likes: 0
From: Sacramento, CA
I have the same sound that occurs between 6000 and 7500 rpm. The best answer I ever found was that it was caused by the 3rd port opening. Mine has done this since I got it, and I have no real engine issues at all. I do think that it is odd that all "8's" don't do it. The sound is really distinctive. Most people that hear it think it is a turbo winding up.
06-10-2006 | 07:04 PM
#84
Original Turbo 'd Auto !!
Joined: Mar 2004
Posts: 2,133
Likes: 4
From: Surprise, Arizona
Originally Posted by zoom44
there wer a few with a bubble in some castings causing coolant seal failures. not the seals themselves that were bad but a casting error in the housing. sorry to hear you got one
there wer a few with a bubble in some castings causing coolant seal failures. not the seals themselves that were bad but a casting error in the housing. sorry to hear you got one
Memories
Anyway It's hot again in Phx and today it threw the P0020 " Sensor A cat sensor reports a lean condition occurd and p9600 is an unknow code". I will get the Marbles/Knock, happens on load/ acceleration in 1st and 2nd gear.
91 Octane , Ambiant air temp 110, Yes it's an A/T, No, I don't drive like you granny
Oh Yea motor #2!
06-10-2006 | 11:20 PM
#85
Administrator
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
Originally Posted by SecrtSqurl
I have the same sound that occurs between 6000 and 7500 rpm. The best answer I ever found was that it was caused by the 3rd port opening. Mine has done this since I got it, and I have no real engine issues at all. I do think that it is odd that all "8's" don't do it.
yes that is right and they do.
08-27-2006 | 09:27 AM
#86
the stig is my hero
Joined: Feb 2006
Posts: 701
Likes: 0
From: NC
well, I guess maybe it's good news that they're going to do this big recall thing. Apparently it's going to cover cats and they'll do a compression test. From what I gather, this is either cat or heater-core related, so if it's cat, it should show up. One thing my dealer mentioned last time I brought it in for this problem is my cat had a dent in it. Of course that probably describes half of the rx-8's out there due to the low position of it, but maybe that has something to do with my rattling.
09-20-2006 | 08:16 AM
#88
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Joined: Aug 2006
Posts: 11
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Paper Rustling - Passenger foot well > 6700 RPM
Originally Posted by SlowLude
Does it sound like paper rustling? Cuz I have that sometimes too, but only when I bring it up to 5-9k on the first time I punch it. I thought it was my body kit making that noise because it tends to rattle a bit. But now the more I think about it, it seems to be the draining/circulation of fluids. I had the same sound when I start up the car sometime during the summer.
I have had a similiar problem since new. When I rev the car above 6700 RPM I notice a strange noise coming from the passenger foot well of the car. Sounds like rustling paper. Sometimes it is there and sometimes not. I only have 3000 miles on the car.
I took my car back to Eldorado Motors in Mckinney, TX. The shop foreman, Robert, rode with me and didn't know what it was...I told him I heard of some heater core issues with other members of the forum. He called Mazda TAC. They had him clamp off the heater core and test. No more noise. They tried bleeding the system to get any air out that may be there. However, this did not solve the problem.
End result. They are replacing the heater core. There seems to be some issue with the way fluid is traveling through it. I will repost when parts arrive and I can get it replaced.
10-12-2006 | 06:51 PM
#90
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Joined: Jul 2004
Posts: 2,196
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From: Northern California
I brought mine in complaining of marble/knock problem and they told me to use prem-fuel. It has all the latest recalls done. It does not knock on prem, but for the first 20k(have 30k now) it did not ping on reg-fuel. Is there carbon build up that I can use fuel additive to remove? Ideas anyone?
Last edited by Old Rotor; 10-12-2006 at 06:54 PM.
12-26-2006 | 10:50 PM
#92
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Joined: Dec 2006
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Originally Posted by Raptor2k
^sounds from the passenger side for mine too...no CEL, I redline frequently....
It really bothers me how there's just about no input or explanations from the 'experts' out there, I'm having to take advice from my dealership to just try different gas stations
It really bothers me how there's just about no input or explanations from the 'experts' out there, I'm having to take advice from my dealership to just try different gas stations
Dude i am getting the same thing..it sounds like a metallic rattle from under the passanger side. Only happens in 2nd gear and once in a while Could the dealer have messed up my flash?
Im a little worried about this.
12-27-2006 | 10:13 AM
#94
Laid back in the pocket
Joined: Mar 2006
Posts: 522
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From: Blacksburg, VA
Originally Posted by Rudboy
Just a heads up for anyone experiencing this problem. After almost 4 weeks at the dealership they FINALLY found the problem. The 2006 RX-8 has a new pressure relief valve for the heater core. Apparently the old valve was causing some kind of air bubbles in the heater core. Mazda found out that these air bubbles caused a rattling sound at high rpm's.
After they replaced my valve with the new one off the 2006 model the rattling sound was gone. I can no longer make my car do that rattle sound even if I try. I also noticed that the new 2006 RX-8's on the lot are now rated at 232 HP instead of 238. I wonder if the new valve is part of this loss of HP?
Hope this helps, I heard that Mazda will be issuing a Service Bulletin for this problem.
Good Luck!
After they replaced my valve with the new one off the 2006 model the rattling sound was gone. I can no longer make my car do that rattle sound even if I try. I also noticed that the new 2006 RX-8's on the lot are now rated at 232 HP instead of 238. I wonder if the new valve is part of this loss of HP?
Hope this helps, I heard that Mazda will be issuing a Service Bulletin for this problem.
Good Luck!
Is this not fixing the problem of paper/sand/marbles? Or, has no one else gotten the update to the heater core?
I've read tons of threads on this issue, but this is the first time I've heard of the new valve.
12-27-2006 | 11:33 AM
#95
Jst wnt a relibl Turbo
Joined: Oct 2005
Posts: 89
Likes: 0
From: Sacramento, CA
Everything I heard and read always pointed to the port opening. It would be nice if the noise could be elinated with the replacement of a part in the heater. I wonder how long it would take the dealer to do this modification, and would it be a warranty issue?
12-28-2006 | 03:56 PM
#96
Registered User
Joined: Jul 2006
Posts: 4
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Congrats! You are a new engine candidate if you're experiencing a loss of power at the same time. If I am to believe the mechanic you ordered my engine change, it's something to do with gaskets. They changed just about everything else in my car over a 12-month period. This may have something to do with the powertrain warranty extension...
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