2002 chevy G1500 Express Van

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2002 chevy G1500 Express Van

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Express and G-Series Vans >> 2002 chevy G1500 Express Van

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2002 chevy G1500 Express Van - 7/3/2008 11:54:39 AM

checkers355

Posts: 1
Joined: 7/3/2008
Status: offline

My speedo on my express van starts to flutuate at highway speeds causing my transmission to downshift erracticly and abs light to come on. I have changed the speed sensor and abs module with no results. No fault codes showing during diagnostics test. Van run fines most of the day then starts acting up about 2 hrs into a trip. Any info on where I should start troubleshooting? Thanks for any help.