P0782 critical

2-3 Shift Malfunction

The P0782 code means the vehicle's onboard diagnostic system has detected: 2-3 Shift Malfunction. This is a critical severity code.

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Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $200 - $3000 (parts and labor)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

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Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.

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Common Symptoms

Check Engine Light illuminated
Harsh or no 2-3 upshift
RPM flare between second and third gear
Vehicle stuck in second gear

Probable Causes (Ranked by Likelihood)

Faulty 2-3 shift solenoid Very High
Worn 2-3 clutch pack High
2-3 accumulator piston fault Moderate
Valve body 2-3 shift valve stuck Moderate

Step-by-Step Diagnostic Procedure

Monitor 2-3 shift timing and quality on a scan tool
Check 2-3 shift solenoid operation
Perform line pressure test during 2-3 shift
Check 2-3 accumulator
Internal inspection may be needed for clutch pack wear

Frequently Asked Questions

Can I drive with code P0782?

Drive short distances only. Shift malfunction codes indicate the transmission is not shifting correctly, which can cause further damage.

What does P0782 mean?

2-3 Shift Malfunction. This means the TCM has detected that a shift event is not occurring as expected. The cause can range from a faulty solenoid to internal transmission wear.

Will a transmission flush fix P0782?

A fluid flush alone rarely fixes shift malfunction codes. However, if the fluid is contaminated, a flush combined with solenoid replacement may resolve the issue. Never flush a transmission with heavily burnt fluid, as it can dislodge debris and cause further damage.