78 vandura running rough - Truck Forums at Truckin' Magazine

78 vandura running rough

  
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78 vandura running rough

 
BigMikeRein BigMikeRein
New User | Posts: 1 | Joined: 08/08
Posted: 08/01/08
09:14 AM

cylinders 1,7,6   PSI 115 ,not firing at idle, when it warms up it runs better but didn't pass the idle smog test. Hydrocarbon went from 135 ppm to 2000 ppm at idle ( 913 is the max)?  

 
Matthew72 Matthew72
New User | Posts: 1 | Joined: 08/08
Posted: 08/01/08
11:16 AM

Sounds like it's time for a rebuild.  
Fatt
Matt

 
esanchez esanchez
Administrator | Posts: 1595 | Joined: 07/06
Posted: 08/01/08
04:45 PM

You try a bottle of Techron or cat cleaner? That and a new coil, cap & rotor and plug wires might do the trick. Otherwise, yeah, I agree with Matthew.  

 

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