P0756 on Pontiac
Shift Solenoid B Performance/Stuck Off
P0756 on Pontiac vehicles indicates shift solenoid b performance/stuck off. Au7o has documented this code across 1 Pontiac model — most commonly on Grand Prix. This code means the transmission control module commanded Shift Solenoid B (sometimes called Shift Solenoid 2) to operate, but the transmission did not respond as expected, with the solenoid behaving as if it is stuck in the 'off' position. Shift solenoids are electrically controlled valves that route transmission fluid pressure to engage the correct gears, so a stuck or weak solenoid can cause harsh, delayed, or missed shifts. The computer sets this code when the actual gear ratio or shift timing does not match what it commanded. It generally points to a hydraulic or electrical performance problem inside the automatic transmission rather than a simple wiring short. Typical repair costs on Pontiac range from $2,300 to $2,700, depending on the specific model and root cause.
Common Causes of P0756
- •Stuck or failed Shift Solenoid B
- •Low, dirty, or degraded transmission fluid
- •Clogged solenoid or valve body passages from debris
- •Worn or sticking valve body components
- •Wiring or connector fault to the solenoid
- •Internal transmission wear or mechanical damage
- •Faulty transmission control module
P0756 on Pontiac by Model
Pontiac Grand Prix(1 issue)
- 4T65-E Automatic Transmission Hard Shifting and Failure2001-2008
The 4T65-E (and 4T65-E HD on the LS4 V8 GXP) automatic transmission commonly develops harsh/erratic shifting and eventual failure as mileage climbs. Causes include worn clutch packs, weak accumulator springs allowing slow shifts that trigger maximum line pressure, failing pressure control or shift solenoids, and the 4T65E-HD pan-magnet/line-pressure issue. Outright failure can leave the vehicle stranded with no warning.
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What does P0756 mean on Pontiac?▼
P0756 stands for "Shift Solenoid B Performance/Stuck Off." This code means the transmission control module commanded Shift Solenoid B (sometimes called Shift Solenoid 2) to operate, but the transmission did not respond as expected, with the solenoid behaving as if it is stuck in the 'off' position. Shift solenoids are electrically controlled valves that route transmission fluid pressure to engage the correct gears, so a stuck or weak solenoid can cause harsh, delayed, or missed shifts. The computer sets this code when the actual gear ratio or shift timing does not match what it commanded. It generally points to a hydraulic or electrical performance problem inside the automatic transmission rather than a simple wiring short. On Pontiac specifically, this code is documented across 1 model.
What causes P0756 on Pontiac vehicles?▼
Common causes on Pontiac: Stuck or failed Shift Solenoid B, Low, dirty, or degraded transmission fluid, Clogged solenoid or valve body passages from debris, Worn or sticking valve body components, Wiring or connector fault to the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0756 on a Pontiac?▼
Repair costs on Pontiac range from $2,300 to $2,700, depending on the specific model and root cause.
Which Pontiac models have P0756 documented?▼
Au7o has documented P0756 on 1 Pontiac model: Grand Prix.