Metallic rattle at idle after warm up...(New Marbles in a Can?)
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Just finished a 20 minute drive to get it warmed up. Pulled into the driveway and deployed recorder. The rattle is slightly apparent.
I then press clutch in (should hear me say "IN") and then release the clutch (should hear me say "OUT"). Notice no change in rattle.
I then lightly apply throttle and the rattle disappears. I release throttle, and the rattle reappears. I do this a second time just to be sure.
I then proceed to flog it a little bit. Afterwards, as soon as the engine returns to idle, the rattle reappears, however this time much louder than before. The increase in rattle always happens immediately afterwards.
No loss in power or anything else. Simply noise for now.
I'm going to get under the car and see if I can find anything later today.
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Yup that is the same thing I have. Some guys said it sounds like a motor mount. I can feel the car rock when going into any gear (yest i know how to drive stick), over bumps i feel rocking.
The arrows and letters on the corners are for orientation.
R= Rear
F = Front
D = Driver
P = Passenger
The circled red areas appear to be the heat shield which lost some of its welds and is now kinda of floppy. I figured that after the manifold heats up the shield gets to rattling. I'm not sure I found the problem, but after a short chat with the pry bar the rattle has diminished.
The "welds" on your CAT heat shield are fine. That is the way they are supposed to look.
When my car developed a similar rattle, it was the driver's side motor mount.
It could also be any one of a number of things that are run along that same side of the motor, like the starter motor harness or the fuel lines.
Best bet is to get under the car with a short length of 3/4" heater hose up to your ear and point it around like a stethoscope.
Only problem is that changing the attitude of the vehicle might abate the noise.
__________________
Black Halo Racing - Butchers, Hacks, and Retards. I'm the Retard!
The "welds" on your CAT heat shield are fine. That is the way they are supposed to look.
When my car developed a similar rattle, it was the driver's side motor mount.
It could also be any one of a number of things that are run along that same side of the motor, like the starter motor harness or the fuel lines.
Best bet is to get under the car with a short length of 3/4" heater hose up to your ear and point it around like a stethoscope.
Only problem is that changing the attitude of the vehicle might abate the noise.
Um, that is the exhaust manifold. The CAT was replaced by a midpipe. The pic is where the manifold and cat pipe meet.
Does that change your opinion? Or still thinking its the mount?
I meant ex-man. My fingers are faster than my brain tonight. I've been in the garage welding for the past 48 hours.
Is it louder on one side of the car than the other when you put your ear just behind the tire?
I still think its the mount, but use a hose like I suggested.
__________________
Black Halo Racing - Butchers, Hacks, and Retards. I'm the Retard!
I meant ex-man. My fingers are faster than my brain tonight. I've been in the garage welding for the past 48 hours.
Is it louder on one side of the car than the other when you put your ear just behind the tire?
I still think its the mount, but use a hose like I suggested.
Heh...no worries I'm on day 3 of no sleep...I know what you mean...
OK, so after taking the pry bar to the shield last night, I could not get the rattle to reproduce as severely as I used to be able to. Did the same 20 min warm up.
After I check out the motor mount, I'll take it out for a proper flogging to try to get the rattle.
If its not the mount, its got to be something related to my blind pry bar fury...
the same thing happened to me, i took into mazda and they replaced the motor mounts and it stopped the rattling noise, that might be it, hope everything works out with you
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