P0742

P0742 on 4L80E: Diagnosis & Fix

4L80E diagnostic code · symptoms, fix, part, cost · same-day shipping on the fix.

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Symptoms

The Fix

Diagnostic + Fix

TCC apply valve stuck. Replace TCC solenoid + inspect/sleeve apply valve in valve body.

Cost: ~$80-120 + 90min labor

Part You Need

4L80E TCC Solenoid + Apply Valve Kit
View on Shopify - Ships Today

Why Same-Day Ship Matters

Customer's truck is in the bay. Code is logged. You quoted the fix. Now you need the part on your bench TOMORROW, not Friday. We ship before 2pm Eastern, free on orders over $40, and the 4L80E catalog has every common solenoid/sensor/kit you need to clear a P0742 code.

Common 4L80E OEM Reference

Specific OE-number deep dives — symptoms, resistance specs, install procedure, and direct-ship pricing.

OE# 24210864 A Shift SolenoidOE# 24210865 B Shift Solenoid

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