Stall Speed Test Procedure
NOTE:
Performing stall speed test procedure for an extended period of time may set Diagnostic Trouble Code (DTC) P0712 or P1783. Always clear DTC after performing stall speed test. See CLEARING DIAGNOSTIC TROUBLE CODES under DIAGNOSIS & TESTING in FORD 5R55E ELECTRONIC CONTROLS article.
Connect tachometer to engine. Apply parking and service brakes firmly. Place selector lever in each gear. Press accelerator completely to floor and record tachometer RPM reading in each gear. DO NOT exceed 5 second limit. Engine speed should be within specifications. See STALL SPEED SPECIFICATIONS table. If engine speed is not within specifications, diagnose and repair. See STALL SPEED TEST RESULTS .
STALL SPEED SPECIFICATIONS
| Application | Stall Speed RPM |
|---|---|
| B4000 | 2405-2800 |
| Explorer/Mountaineer (4.0L OHV) | 2610-2983 |
| Explorer/Mountaineer/Ranger (4.0L SOHC) | 2632-3114 |
| Ranger (4.0L OHV) | 2564-2993 |