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Old Aug 1, 2012 | 08:26 PM
  #16  
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From: Joplin MO
Take it to a muffler shop, they can check for clogged cats.
 
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Old Aug 1, 2012 | 09:40 PM
  #17  
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From: youngstown
Is there 4 cats on the truck or just two
 
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Old Aug 1, 2012 | 10:15 PM
  #18  
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From: In the fast lane from LA to Tokyo...
just 2.....one for each side
 
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Old Aug 1, 2012 | 11:18 PM
  #19  
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From: youngstown
Ill have to have the cats checked. I am pretty sure its the manifold now i will check that tomorrow not to sound like a noob how would i check it just visually or is there a trick
 
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Old Aug 2, 2012 | 10:54 AM
  #20  
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I tried to get the cel to come on while comming on the freeway. I gunned it and it started shaking violently and back firing bad.
 
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Old Aug 2, 2012 | 12:23 PM
  #21  
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From: In the fast lane from LA to Tokyo...
 
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Old Aug 2, 2012 | 12:50 PM
  #22  
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From: Joplin MO
Originally Posted by f0rd1926
I tried to get the cel to come on while comming on the freeway. I gunned it and it started shaking violently and back firing bad.
Spark plugs and possibly coils. You do need to check the FPDM for corrosion.
 
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Old Aug 2, 2012 | 04:34 PM
  #23  
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From: youngstown
Im going to buy a coil tomorrow morning and change it one by one to see if there is a bad one im doing everything i can to not change the plugs.
 
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Old Aug 2, 2012 | 04:36 PM
  #24  
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The fpdm is above the spare. Im going to check that but if it is bad wouldnt it not run at all?
 
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Old Aug 2, 2012 | 04:46 PM
  #25  
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What would the readings be if it was plugged? Higher I assuming?
 
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Old Aug 2, 2012 | 08:29 PM
  #26  
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From: Joplin MO
Originally Posted by f0rd1926
im doing everything i can to not change the plugs.
Change them. They should be done every 60k.
 
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Old Aug 4, 2012 | 12:26 PM
  #27  
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From: youngstown
I took the truck to an exhaust shop they said bad manifold is the culprit thanks everyone
 
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