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Old 07-16-2014, 03:03 PM
jtmarten jtmarten is offline
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Re: 96 K2500 Fuel Trims

Quote:
Originally Posted by j cAT View Post
my guess is you have a vacuum leak on the driver side. make sure all those hoses including the PCV are good no cracks. could be intake gasket ..

the EGR if 10 years old is defective that is how it goes with this part. on the O2 sensors up stream replacing when 100K on then with this 1996 is the proper time.

the newer vehicles NBS O2 sensor replacing is about 150K since these are made differently last longer...
Thanks j cAT
The EGR is a few months old. I'll check for vac leaks and see what shakes out. Hopefully that's it.
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2005 Saab 93 Aero
1996 GMC K2500 Sub w/conversion pkg
1964 Ford Falcon 'vert
1980 Bradley GT2 96v Electric
1978 GMC Royale Motorhome
1978 Glastron/Carlson CV23; 460/Berk JE jet
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