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car "shakes" at 2800-3500 RPM?

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Old Aug 19, 2008 | 06:22 AM
  #11  
Aquariumjunkie's Avatar
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Default RE: car "shakes" at 2800-3500 RPM?

So problem solved... didn't even take it to the shop. i decided to remove the catalytic converter and take a look inside. a chunk of baffle had gone side ways blocking the exhaust flow. it was letting just enough air get by to not kill the motor, but rob all the power. the fix was simple... jam a rod threw the converter, and clean out all the chunks! I've got a DynoMax converter in the mail, but it runs so much better now. it's crazy how much the converter restricts air flow!!! So thank you all for your input, and next time your car feels under powered, start with the basics... Air in, air out.
P.S. the shaking is gone
 
Old Aug 19, 2008 | 08:49 AM
  #12  
JimBlake's Avatar
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Joined: May 2006
Posts: 18,398
From: Wisconsin
Default RE: car "shakes" at 2800-3500 RPM?

Wow!
Obstructing the exhaust will ALWAYS make it run real bad. It just doesnt strike me as a very common thing.

Another example of *dont take anything for granted*...
 
Old Aug 19, 2008 | 09:39 AM
  #13  
klrspz's Avatar
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Default RE: car "shakes" at 2800-3500 RPM?

Thanks for keeping us informed.... Good post!
 
Old Aug 19, 2008 | 11:04 AM
  #14  
Aquariumjunkie's Avatar
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Default RE: car "shakes" at 2800-3500 RPM?

Wow!
Obstructing the exhaust will ALWAYS make it run real bad. It just doesnt strike me as a very common thing.

Another example of *dont take anything for granted*...
Yeah, sometimes the answer is right in front of you!!! I was thinking that it was going to be amajor internal engine problem, and didn't even think about the exhaust. somethimes the answer to a problem is the simplest one... Glad if this helps anyone.
 
Old Aug 19, 2008 | 01:12 PM
  #15  
falkore24's Avatar
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Posts: 6,213
From: Wayne, NJ
Default RE: car "shakes" at 2800-3500 RPM?

I'm surprised that you didn't hear rattling. Glad it's fixed though.
 
Old Aug 19, 2008 | 01:57 PM
  #16  
Fenix's Avatar
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Joined: Sep 2006
Posts: 883
From: Glen Cove NY
Default RE: car "shakes" at 2800-3500 RPM?

wow talk about a stroke of luck. im glad that it wasnt something costly.
 
Old Aug 20, 2008 | 06:13 AM
  #17  
Aquariumjunkie's Avatar
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Default RE: car "shakes" at 2800-3500 RPM?

well now the "check engine light" is on... do you guys think it's the sensor for the converter throwing a code? i'm gunna take it to schucks and have them read it. will keep posted...
 
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