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Home >> Lincoln >> 1997 >> Mark VIII Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul - 4R70W Automatic Transmission >> Testing >> Road Test

Road Test

  1. Drive vehicle with transmission in "OD" position to normal operating temperature. Check minimum throttle upshifts in "OD". Transmission should start in 1st gear, shift to 2nd, 3rd, and 4th gear at approximately the speeds shown in SHIFT SPEEDS SPECIFICATIONS tables.
  2. With transmission in 4th gear (Overdrive), press Transmission Control Switch (TCS). Transmission should downshift to 3rd gear. Release accelerator pedal. Engine braking should occur.
  3. Press accelerator pedal to WOT. Transmission should shift from 3rd to 2nd gear, or 3rd to 1st gear depending on vehicle speed. See appropriate SHIFT SPEED SPECIFICATIONS table. Torque converter clutch should disengage and then reapply.
  4. With transmission in "D" position, and vehicle speed more than 50 MPH, move transmission selector lever to manual "2" position. Release accelerator pedal. Transmission should immediately downshift to 2nd gear. Move transmission selector lever to manual "1" position. Transmission should downshift to 1st gear at speeds less than 30-35 MPH.
  5. If transmission fails to operate normally or torque converter does not apply, diagnose problem by symptom. See SYMPTOM DIAGNOSIS under TROUBLE SHOOTING.
NOTE: Shift speeds shown are approximate. All shift speeds may vary due to production tolerances and emission control equipment.
SHIFT SPEED SPECIFICATIONS (1997 COUGAR & THUNDERBIRD)

Operating Condition Shift Speed MPH (3.8L) Shift Speed MPH (4.6L)
Light Throttle
1-2 8-14 10-13
2-3 18-23 19-23
3-4 28-36 32-37
4-3 28-32 29-33
3-2 12-16 18-19
2-1 6-10 9-12
Full Throttle (WOT)
1-2 34-44 38-47
2-3 62-72 71-83
3-2 25-62 62-69
2-1 10-25 30-35
SHIFT SPEED SPECIFICATIONS(1997 CROWN VICTORIA,GRAND MARQUIS/TOWN CAR)

Operating Condition Shift Speed MPH (2.73 Axle Ratio) Shift Speed MPH (3.08 Axle Ratio) Shift Speed MPH (3.27 Axle Ratio)(1)
Light Throttle
1-2 10-15 10-12 8-11
2-3 22-26 21-24 19-22
3-4 40-44 35-40 33-37
4-3 33-35 29-31 27-29
3-2 13-15 12-14 12-14
2-1 8-10 7-9 6-8
Full Throttle (WOT)
1-2 44-49 40-46 36-41
2-3 86-93 73-81 71-76
3-2 78 Max. 70 Max. 66 Max.
2-1 34 Max. 30 Max. 28 Max.
(1) These shift speeds apply to Crown Victoria Police Special models and vehicles equipped with trailer towing or limousine packages.
SHIFT SPEED SPECIFICATIONS (1997-98 EXPEDITION 4.6L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.55 Axle Ratio)
Light Throttle
1-2 10-14 9-13
2-3 21-25 20-24
3-4 32-36 31-35
4-3 24-26 23-25
3-2 16-18 15-17
2-1 10-12 10-12
WOT
1-2 48-52 46-50
2-3 74-78 71-75
3-2 65-67 62-64
2-1 29-31 28-30
SHIFT SPEED SPECIFICATIONS (1997-98 EXPLORER 5.0L (1) )

Operating Condition Shift Speed MPH
Light Throttle
1-2 9-13
2-3 19-23
3-4 38-42
4-3 22-24
3-2 12-14
2-1 4-8
Full Throttle (WOT)
1-2 36-40
2-3 66-70
3-2 60-62
2-1 26-28
(1) Applies to 2WD and 4WD models.
SHIFT SPEED SPECIFICATIONS (1997-98 MARK VIII)

Operating Condition (1) Shift Speed MPH
Light Throttle
1-2 7-12
2-3 18-22
3-4 33-37
4-3 30-32
3-2 12-16
2-1 5-9
Full Throttle (WOT)
1-2 50-55
2-3 94-100
3-2 76 Max.
2-1 40 Max.
(1) Applies to all axle ratios.
SHIFT SPEED SPECIFICATIONS (1997 MUSTANG 3.8L)

Operating Condition Shift Speed MPH
Light Throttle
1-2 9-11
2-3 21-23
3-4 41-43
4-3 29-31
3-2 14-16
2-1 7-9
Full Throttle (WOT)
1-2 40-45
2-3 N/A
3-2 69 Max.
2-1 29 Max.
SHIFT SPEED SPECIFICATIONS (1997 MUSTANG GT 4.6L)

Operating Condition Shift Speed MPH (3.08 Axle Ratio) Shift Speed MPH (3.27 Axle Ratio)
Light Throttle
1-2 9-11 8-11
2-3 26-30 25-29
3-4 39-44 37-42
4-3 27-29 25-27
3-2 14-16 13-15
2-1 7-9 7-9
WOT
1-2 40-45 37-42
2-3 74-79 69-74
3-2 72 Max. 68 Max.
2-1 35 Max. 33 Max.
SHIFT SPEED SPECIFICATIONS (1997 E-150 4.2L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.55 Axle Ratio) Shift Speed MPH (3.73 Axle Ratio) Shift Speed MPH (4.09 Axle Ratio)
Light Throttle
1-2 11-15 9-13 10-14 10-14
2-3 15-19 13-17 18-22 13-17
3-4 36-40 34-38 38-42 34-38
4-3 22-24 21-23 23-25 23-25
3-2 13-15 12-14 12-14 10-12
2-1 6-8 5-7 6-8 6-8
Full Throttle (WOT)
1-2 37-41 34-38 40-44 35-39
2-3 70-74 69-73 70-74 65-69
4-3 88-90 83-85 78-80 73-75
3-2 65-67 61-63 60-62 54-56
2-1 31-33 29-31 33-35 31-33
SHIFT SPEED SPECIFICATIONS (1997 E-150 4.6L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.55 Axle Ratio)
Light Throttle
1-2 7-11 7-11
2-3 18-22 17-21
3-4 38-42 36-40
4-3 24-26 22-24
3-2 11-13 11-13
2-1 4-6 4-6
WOT
1-2 40-44 37-41
2-3 73-77 69-73
4-3 88-90 83-85
3-2 67-69 63-65
2-1 33-35 31-33
SHIFT SPEED SPECIFICATIONS (1997-98 F-150 4.2L)

Operating Condition (1) Shift Speed MPH
Light Throttle
1-2 7-11
2-3 16-20
3-4 24-28
4-3 20-24
3-2 12-16
2-1 4-8
Full Throttle (WOT)
1-2 36-40
2-3 65-76
3-4 88-100
4-3 76-92
3-2 57-67
2-1 29-34
(1) Applies to all axle ratios.
SHIFT SPEED SPECIFICATIONS(1998 CROWN VICTORIA,GRAND MARQUIS/TOWNCAR)

Operating Condition Shift Speed MPH (2.73 Axle Ratio) Shift Speed MPH (3.08 Axle Ratio) Shift Speed MPH (3.27 Axle Ratio)(1)
Light Throttle
1-2 7-9 6-8 6-8
2-3 19-22 17-20 16-19
3-4 34-38 31-35 29-33
4-3 31-33 28-30 26-28
3-2 13-15 12-14 12-14
2-1 4-6 4-6 4-6
Full Throttle (WOT)
1-2 40-46 37-42 39-44
2-3 77-83 70-75 72-77
3-2 78 Max. 70 Max. 70 Max.
2-1 31 Max. 28 Max. 35 Max.
(1) These shift speeds apply to Crown Victoria Police Special models and vehicles equipped with trailer towing or limousine packages.
SHIFT SPEED SPECIFICATIONS (1998 E-150 & E-250 4.2L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.55 Axle Ratio) Shift Speed MPH (3.73 Axle Ratio) Shift Speed MPH (4.09 Axle Ratio)
Light Throttle
1-2 10-13 9-12 10-15 10-15
2-3 17-27 16-25 15-25 14-23
3-4 36-45 33-42 36-45 34-38
4-3 22-24 21-23 23-25 23-25
3-2 13-15 12-14 12-14 10-12
2-1 6-8 5-7 6-8 6-8
Full Throttle (WOT)
1-2 37-41 34-38 38-44 35-39
2-3 70-74 69-73 68-74 65-69
4-3 88-90 83-85 77-80 73-75
3-2 65-67 61-63 60-62 54-56
2-1 31-33 29-31 30-32 27-29
SHIFT SPEED SPECIFICATIONS (1998 E-150 4.6L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.55 Axle Ratio)
Light Throttle
1-2 7-13 7-13
2-3 17-27 16-26
3-4 38-55 36-52
4-3 24-26 22-24
3-2 11-13 11-13
2-1 4-6 4-6
WOT
1-2 40-44 37-41
2-3 73-77 69-73
4-3 88-90 83-85
3-2 67-69 63-65
2-1 33-35 31-33
SHIFT SPEED SPECIFICATIONS (1998 MUSTANG 3.8L)

Operating Condition Shift Speed MPH
Light Throttle
1-2 6-10
2-3 20-22
3-4 39-43
4-3 24-26
3-2 13-15
2-1 5-7
Full Throttle (WOT)
1-2 40-45
2-3 N/A
3-2 69 Max.
2-1 29 Max.
SHIFT SPEED SPECIFICATIONS (1998 MUSTANG GT 4.6L)

Operating Condition Shift Speed MPH (3.08 Axle Ratio) Shift Speed MPH (3.27 Axle Ratio)
Light Throttle
1-2 7-10 7-10
2-3 14-18 14-18
3-4 24-27 23-28
4-3 23-25 22-24
3-2 12-14 12-14
2-1 5-7 5-7
WOT
1-2 40-45 37-42
2-3 74-79 69-74
3-2 72 Max. 68 Max.
2-1 35 Max. 33 Max.
SHIFT SPEED SPECIFICATIONS (1998 F-150 4.6L)

Operating Condition Shift Speed MPH
Light Throttle
1-2 8-12
2-3 16-24
3-4 30-35
4-3 22-29
3-2 13-15
2-1 6-7
Full Throttle (WOT)
1-2 36-41
2-3 64-74
3-4 94-100
4-3 78-90
3-2 57-62
2-1 30-31
SHIFT SPEED SPECIFICATIONS (1997-98 F-250 4.6L)

Operating Condition Shift Speed MPH (3.31 Axle Ratio) Shift Speed MPH (3.73 Axle Ratio)
Light Throttle
1-2 7-11 7-11
2-3 18-22 15-20
3-4 32-36 28-32
4-3 23-29 22-26
3-2 14-17 11-13
2-1 6-10 5-9
WOT
1-2 40-44 37-41
2-3 75-79 66-70
4-3 88-90 83-85
3-2 65-67 61-63
2-1 31-33 29-31
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