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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Automatic Transaxle - 4T80-E - Service, Diagnosis & Troubleshooting) >> Delayed Park to Reverse/Drive Engagement

Delayed Park to Reverse/Drive Engagement

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Delayed Park to Reverse/Drive Engagement

Checks Causes
DEFINITION: Gear engagement that takes longer than 3 seconds when the engine is idling in PARK or NEUTRAL and the gear selector is moved to DRIVE or REVERSE range
Automatic Transmission Fluid Level Low fluid level
Transmission Line Pressure Low transmission line pressure
Manual Shift Valve Position Manual shift valve (916) position off location due to linkage adjustment or damage
Reverse Clutch Piston Apply Seals Reverse clutch piston apply seals (inner 506, outer 507) damaged or rolled
Lo/Reverse Band Servo Piston Seal Servo piston seals (small 929, large 930) damaged or rolled
Lo/Reverse Band Assembly Lo/Reverse band assembly (13) excessive wear or damaged
Reverse Orifice By-Pass Valve Reverse orifice by-pass valve (921) binding or damaged
Number 7 Ball Check Valve Number 7 ball check valve seat damaged or debris under ball
Reverse Accumulator Piston Seal The reverse accumulator seal is damaged or rolled
Forward Clutch Piston Apply Seals Forward clutch piston apply seals (inner 808, outer 809) damaged or rolled
Forward Orifice By-Pass Valve Forward orifice by-pass valve (924) binding or damaged
Number 5 Ball Check Valve Number 5 ball check valve seat damaged or debris under ball
Forward Accumulator Piston Seal Forward accumulator piston seal damaged or rolled
Number 8 Ball Check Valve Number 8 ball check valve seat damaged or debris under ball