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missing and backfirering

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  #1  
Old 10-07-2008, 07:00 AM
gmssan's Avatar
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Default missing and backfirering

little history
1500 series 97 chev p/u
replaced
cat and all o2 s (failed emissions)
tuned up with
wires,plugs,cap and rotor, air filter
then feul pump went!!!
replaced pump and new fuel filter.
Now!!!!! about 2 months later this prob.
truck starts fine , idles good
can drive for about 5 to 10 blocks but at a point cant give truck gas or it brogs down, now i put truck in nutral turn off restart ,good for another 5 to 10 blocks.
just getting frustated
 
  #2  
Old 10-07-2008, 07:08 AM
gmssan's Avatar
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Default RE: missing and backfirering

sorry more info
this is 4.3 6 cyclinder vortex
also replaced coil pack
 
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