GM Service Manual Online
For 1990-2009 cars only

No Overrun Braking in Low for Pontiac Sunfire 2001

Checks

Cause

Manual Linkage

Misadjusted

Lo and Reverse Clutch (647-659)

    • The lo and reverse pipe is leaking (139)
    • The piston seals are leaking (651, 652)

Control Valve Assembly (21)

The lo blow off valve assembly is damaged (324-326)