Stall Speed Chart
STALL SPEED CHART
| Vehicle | Engine | RPM |
|---|---|---|
| Mustang | 4.0L | 2,290--2,705 |
| Mustang | 4.6L | 2,556--3,014 |
If stall speeds were too high, refer to the following STALL SPEED DIAGNOSIS CHART . If stall speeds were too low, first check the engine idle speed. If engine idle is OK, remove torque converter and check the torque converter one-way clutch for slippage.