Car Problem Reports

Chevrolet Express 2500 Check Engine Light With Code P1870

 
Chevrolet Express 2500 Problem
6 Reports
Me Too
Edit

Model Years Affected: 1996, 1997, 1998, 1999, 2000

Verified

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

Ask a Question