Mercedes 722.6/Chrysler NAG 1 Vacuum Test Guide
Vacuum testing is an efficient way to identify the root cause of transmission problems and evaluate the effectiveness of repairs. Frequent, proper vacuum testing can put money in the bank, improve turnaround time in your bays, and prevent costly comebacks.
See how easy it is to master vacuum testing and work with confidence knowing your rebuild is done right the first time.
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Related Units
Related Parts
Required
Recommended
722.6
Outer Pressure Regulator Sleeve 68942-06
Fits bores containing OE PR valve with .512" dia. spool only (main image).
-
Helps cure:
- No 2-3
- 4-3 Neutral
- Soft shifts under load
- Slip codes
Required
Recommended
722.6
Oversized Pressure Regulator Valve Kit 68942-07K
Fits bores containing OE PR valve with .512" dia. spool only.
-
Helps cure:
- No 2-3
- 4-3 Neutral
- Soft shifts under acceleration
- Slip codes
- Delayed engagement
- No lockup
Required
Recommended
722.6
Oversized TC Lockup Clutch Regulator Valve Kit 68942-10K
-
Helps cure:
- TCC apply & release concerns
- TCC codes
- Lube failures
Required
Recommended
722.6
Oversized Lubricating Pressure Control Valve Kit 68942-14K
-
Helps cure:
- Delayed engagement
- High stall speed
- Overheated converter
- Lube failures
- Poor performance & higher stall speeds
- Damaged converter
Required
Recommended
722.6
Oversized Manual Valve 68942-16
-
Helps cure:
- Low line pressure
- Delayed Drive
- Delayed Reverse
- Damaged valve body casting
Required
Recommended
722.6
Oversized Regulating Valve Pressure Control Valve Kit 68942-17K
Fits early and late units.
-
Helps cure:
- Delayed engagement
- Low line rise & long shift duration
- Flare shifts
- Shift codes
Required
Recommended
722.6
Oversized 1-2/4-5 Overlap Control Valve Kit 68942-19K
-
Helps cure:
- 1-2 Flare
- 4-5 Flare
- 1-2 Bump
- 4-5 Bump
- 1-2 Harsh
- 4-5 Harsh
- Slipping gears
Required
Recommended
722.6
Oversized 2-3 Overlap Control Valve Kit 68942-27K
-
Helps cure:
- 2-3 Flare
- 2-3 Bump
- 2-3 Harsh
- Slipping gears
Required
Recommended
722.6
Oversized 3-4 Overlap Control Valve Kit 68942-31K
-
Helps cure:
- 3-4 Flare
- 3-4 Bump
- 3-4 Harsh
- Slipping gears
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