Suburban bogging down
September 12th, 2011 | 10:21 PM
#21
CF Beginner
Joined: Sep 2011
Posts: 4
Likes: 0
From: Utah
My 1997 is doing the exact same thing; I am getting 54 lb pressure at rail, dealer says that sounds low, manual says it needs 60-66 lb to operate correct. I have replaced fuel pump, fuel filter, spark plugs, cap & rotor, O2 sensors before the CATS Camshaft position sensor, still bogs down. My last resort, I am going to replace the fuel injector pressure regulator, because of low pressure I have a feeling fuel is bleeding past regulator. I will let you know my result.
September 13th, 2011 | 7:41 AM
#22
CF Junior Member
Joined: Dec 2010
Posts: 31
Likes: 0
My 1997 is doing the exact same thing; I am getting 54 lb pressure at rail, dealer says that sounds low, manual says it needs 60-66 lb to operate correct. I have replaced fuel pump, fuel filter, spark plugs, cap & rotor, O2 sensors before the CATS Camshaft position sensor, still bogs down. My last resort, I am going to replace the fuel injector pressure regulator, because of low pressure I have a feeling fuel is bleeding past regulator. I will let you know my result.
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