4T40E Valve Body 2002-2003, new other (see details) and ready to install. Fits the 4T40E. Ships fast from the USA.
A 2002 or 2003 Chevrolet Cavalier, Pontiac Sunfire or similar GM compact that slams into Drive, shifts hard when cold or runs hot with the converter clutch slipping often has a tired valve body underneath the side cover. This 4T40E valve body is built for the 2002-2003 model years and gives you a complete hydraulic control unit, so the fix covers every worn bore at once instead of one valve at a time.
The 4T40E is GM's 4-speed front-wheel-drive transaxle for small and mid-size cars, with the heavier-duty 4T45E sharing the same basic design. Its valve body takes pump pressure, sets line pressure through the pressure regulator valve, and sends oil to the clutches through valves moved by the shift solenoids and the pressure control solenoid. It also carries the torque converter clutch control valve, which decides when the converter locks up on the highway.
By 2002 this transaxle was already on its third design level of accumulator springs and locations, according to Transmission Digest. That matters on an older unit: an earlier-style accumulator setup swapped in during a past repair can cause harsh engagements that no solenoid will cure. A complete valve body for the correct years puts that hardware back the way it should be.
Look at fluid condition first. Burnt fluid loaded with friction material points to clutch damage that a valve body alone will not fix, and in that case the 4T40E overhaul kit is the better buy. If the fluid is reasonably clean, check line pressure and watch converter slip with a scan tool. Our line pressure checking guide explains the gauge test, and testing a solenoid with a multimeter rules out an electrical fault before you blame the hydraulics. Good solenoid resistance plus low or erratic pressure is the classic valve body case.
This unit is listed for 4T40E transaxles from 2002 through 2003. In those years the 4T40E and 4T45E went into the Chevrolet Cavalier and Malibu, Pontiac Sunfire and Oldsmobile Alero, depending on engine and trim. GM made running changes on this transaxle through its life, and the TCC control valve sleeve kit sold for this bore is specified for valve bodies up to 2003, so do not assume a 2004 or later part is identical. Match the casting number and the solenoid connector to your original, or send us the year and VIN before ordering. More parts for this transaxle are in our 4T40E collection, and the single-year 2003 4T40E valve body is also available if you want to compare.
For a 2002-2003 transaxle, the matching pressure control solenoid for 2003 is a smart add while the side cover is off, and a 4T40E shift kit helps if you want firmer, shorter shifts that reduce clutch heat.
| Fits | 4T40E 2002-2003 |
| Part type | Valve Body |
| Condition | New Other (See Details) |
| Brand | Sonnax |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The 4T40E and 4T45E were used in compact and mid-size GM cars such as the Chevrolet Cavalier and Malibu, Pontiac Sunfire and Oldsmobile Alero. Confirm the transaxle code and casting number, or send us your year and VIN.
Do not assume it will. GM revised this transaxle over its production life, and aftermarket TCC valve repair parts are split at the 2003 model year. Match your casting and connector.
Yes. Wear in the TCC control valve bore lets the valve stick or leak, so the converter clutch does not apply fully. That causes slip, shudder and overheated fluid.
Dexron VI ATF. GM superseded the earlier Dexron III specification with Dexron VI, and it is backward compatible with these transaxles.
If it has high mileage or the car had pressure codes, yes. The side cover is already off, and a new pressure control solenoid matched to your year removes one more variable.
