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Car Forum / Ford / Ford Mustang / January 200504 GT idle rattle??
All, My dealer claims this is 'normal' on my '04 Mustang GT... At idle, every few seconds, what I can only describe as a shake goes through the car. Basically, the whole car vibrates for about a second every 4 or 5 seconds. Its not a horrible shake, but pronounced enough that I can easily feel it... Anyone else have this? Is it normal? If not, anyone know what I should have my dealer look at while its still covered by warranty? I have a feeling its normal right up until I have to pay to fix it, then its gonna be a huge thing.. > All, > My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 7 lines] > feeling its normal right up until I have to pay to fix it, then its > gonna be a huge thing.. My '03 GT Vert had a similar problem when I first bought it. I took it back to the delaer and they re-programmed the computer. That took care of it. Good Luck. Do you know what exactly they reprogrammed? >> All, >> My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 16 lines] > > Good Luck. THE COMPUTER!! heh heh, :) I think they just reprogram the entire thing > Do you know what exactly they reprogrammed? > [quoted text clipped - 18 lines] > > > > Good Luck. The car's Engine control module, ECU or ECM (whatever you want to call it) runs firmware that runs out of a type of memory called "Flash". What they normally will do is connect a programmer to the ALDL connector under the dash and download new code to the calibration areas (usually just cals). This does not mean that anything was defective with your ECU, just means that after your car left the production plant, the calibrators found a problem and have developed a fix. John > THE COMPUTER!! > [quoted text clipped - 24 lines] > > > > > > Good Luck. I have an 04 GT. It's in storage for the winter now, but I never had that happen. I really don't think it's normal. > All, > My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 7 lines] > feeling its normal right up until I have to pay to fix it, then its > gonna be a huge thing.. I get it when I use cheap gas, or right before it's time to change the oil. My 98 V6 mustang did it too. > I have an 04 GT. It's in storage for the winter now, but I never had that > happen. I really don't think it's normal. [quoted text clipped - 10 lines] >> feeling its normal right up until I have to pay to fix it, then its >> gonna be a huge thing.. Switch to BP or Chevron for a week or so and see if it stops. > I get it when I use cheap gas, or right before it's time to change the oil. > [quoted text clipped - 14 lines] >>> feeling its normal right up until I have to pay to fix it, then its >>> gonna be a huge thing.. Worth a try... > Switch to BP or Chevron for a week or so and see if it stops. > [quoted text clipped - 16 lines] >>>> feeling its normal right up until I have to pay to fix it, then its >>>> gonna be a huge thing.. You sure its not the fan cycling? Turn the fan off and see if it still happens.  SignatureJafo '02 GT Black Not eggzackly stock. > All, > My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 7 lines] > feeling its normal right up until I have to pay to fix it, then its > gonna be a huge thing.. Heres where I show my automotive ignorance... what fan are you talking about, and how would I shut it off? > You sure its not the fan cycling? Turn the fan off and see if it still > happens. > You sure its not the fan cycling? Turn the fan off and see if it still > happens. Or the A/C compressor. --- Mike Silver 10th Anniversary Cobra Coupe --- >> All, >> My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 7 lines] >> have a feeling its normal right up until I have to pay to fix it, >> then its gonna be a huge thing.. I have an 01 GT 5 speed and I notice that you can feel the engine vibrate the car a little when you are stopped at a light. Actually my wife asked if something was wrong with the car, when she first rode in it. The only difference with what I feel is that in does not come and go every couple of seconds. Is your idle staying constant? What is your idle RPM? Is it manual or automatic? > All, > My dealer claims this is 'normal' on my '04 Mustang GT... At idle, [quoted text clipped - 7 lines] > feeling its normal right up until I have to pay to fix it, then its > gonna be a huge thing.. That's exactly what I get. It disappears when I use better gas (still 87 though) > I have an 01 GT 5 speed and I notice that you can feel the engine vibrate > the car a little when you are stopped at a light. Actually my wife asked if [quoted text clipped - 15 lines] >> feeling its normal right up until I have to pay to fix it, then its >> gonna be a huge thing.. Its a stick... But it definately comes and goes. Its like a shudder goes through the whole thing, front to back, every 5 seconds. The rpms do bounce just a hair at idle when it shudders. Not sure where my idle is, would have to go check, and its f'ing cold out. > That's exactly what I get. It disappears when I use better gas (still 87 > though) [quoted text clipped - 18 lines] >>> feeling its normal right up until I have to pay to fix it, then its >>> gonna be a huge thing.. I don't have any variation in my RPMs like you stated. I would possibly have another dealer look at it. Something is not right. > Its a stick... But it definately comes and goes. Its like a shudder > goes through the whole thing, front to back, every 5 seconds. The rpms [quoted text clipped - 23 lines] > >>> feeling its normal right up until I have to pay to fix it, then its > >>> gonna be a huge thing.. |
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