P0716 on Pontiac: How to Diagnose & Fix
Input/Turbine Speed Sensor "A" Circuit Range/Performance
1 Pontiac model · 1 documented issue · $200-$1,800 repair
P0716 on Pontiac by model: symptoms, diagnosis and fix
Behind the Northstar, the 2004-2005 GXP uses the Cadillac 4T80E. Owners in GM Forum's GXP section report the second most common GXP failure after head gaskets: an internal torque converter seal that shrinks or tears, producing a rumble-strip shudder at light throttle around 35-45 mph in 4th with the converter clutch applied, temporarily relieved by a light brake-pedal touch or cancelling overdrive. Left alone the converter clutch burns and the transmission starts slipping. The 4T80E input speed sensor is also a frequent failure that sets P0716/P0717 and forces limp mode; because it sits inside the case, it is normally replaced during the converter job. GM issued a bulletin on a 4T80E torque converter design change for 2005 DeVille and Bonneville.
Common Symptoms
- Shudder or vibration at 35-45 mph under light throttle
- Shudder goes away when lightly touching the brake or shifting out of overdrive
- Sudden harsh shifts or limp mode with P0716/P0717
- Slipping after prolonged shudder
How to Fix
First try a full fluid exchange (a pan drop only changes about 25 percent) with Dexron VI plus GM's TCC shudder additive; if the shudder returns the torque converter must be replaced, which requires pulling the transmission (about $1,000-1,800). Replace the input speed sensor while the unit is out. No recall or free remedy.
Sources for this issue (4)
P0716 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0716 mean on a Pontiac?
P0716 stands for "Input/Turbine Speed Sensor "A" Circuit Range/Performance." This code means the input/turbine speed sensor is producing a reading that is out of the expected range or is inconsistent with other data. This sensor tells the transmission control module how fast the transmission input shaft (turbine) is turning, which is used to calculate gear ratios and time shifts. An erratic or out-of-range signal can cause harsh shifting, incorrect shift timing, or the transmission entering limp mode. It is often caused by sensor, wiring, or fluid issues. On Pontiac it is documented across 1 model: Bonneville.
What are the most common causes of P0716?
The most common causes of P0716 are: Faulty input/turbine speed sensor, Low or dirty transmission fluid, Damaged sensor wiring or connector, Metal debris on the sensor tip, Internal transmission wear affecting the signal, Faulty transmission control module. The specific cause varies by vehicle.
How much does it cost to fix P0716 on a Pontiac?
Published repair estimates on Pontiac range from $200 to $1,800 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.