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Car seems to run at unusually high RPM's

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  #21  
Old 09-12-2012, 10:49 PM
DewAudiA4's Avatar
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Originally Posted by audiaxel
I couldn't see the tranny code under the car since I have no way of lifting it which makes it difficult to get very far under, let alone move my head once under there. That will have to wait for another day. Is there any plausibility to the misleading tach theory?



That's what seems normal to me, which is what leads me to believe that mine is far from normal.
haha i honestly don't know so don't listen to me but it seems if the car doesn't seem like it's strung out the tach could be off, i would think it's a possibility? At 22 mph in 1st, does it sound like you're at 6200 rpm or does it sound more like 4,000 rpm, not that you could gauge it very well when it's been doing that since you bought it I assume
 
  #22  
Old 09-12-2012, 10:56 PM
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Yeah, that's my issue, I really have no comparison other than my brother's 1.8T and my mom's 3.2, which both sound more than mine. When I go to the mountains, I'm at 5000 RPM for like an hour and a half, and it still sounds fairly mellow and averages around 24 mpg. Maybe I'll have to see how far past the redline it goes... Thanks for the input anyway!
 
  #23  
Old 09-13-2012, 01:16 PM
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Is there evidence of a cluster swap? It could've been swapped with a 1.8T cluster, which would give you a 50% higher RPM reading. If you have access to a vagcom you'll be able to check and correct it in 5 minutes. If that's the case then 5000 RPM would really mean 3300-ish, which is much more normal. What does it idle at when warm?
 

Last edited by Mad Cow; 09-13-2012 at 01:19 PM.
  #24  
Old 09-13-2012, 10:19 PM
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I hadn't even considered that. I'll try to figure that out. When cold, idle's at about 2000, and it goes down to about 1000-1200 once warm. Seems fairly normal to me. It jumps a lot at idle, another problem that's never been fixed, but that's usually just after lots of driving.
 
  #25  
Old 09-13-2012, 11:19 PM
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cold idle should be 1200, warm around 800. id look into the tach being wrong.
 
  #26  
Old 09-13-2012, 11:25 PM
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I'll definitely do that. I'd much rather have a tach issue than a tranny issue. Thanks for all of the input guys, I appreciate it. I'll let you know what I find out.
 
  #27  
Old 09-13-2012, 11:42 PM
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Carfax just confirmed 2 cluster swaps by POs. Problem solved it seems! I'll fix that next time I have access to a vagcom. Now I'll hopefully no longer lose off the line to ten year old Santa Fe's and Wranglers
 
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