DIY 41te automatic transmission repair

The site provides information on automatic transmissions
Automatic transmission schemes, variators. The principles of the units.
Repair, disassembly and assembly of automatic transmission.

Chrysler, Dodge. 4-speed automatic transmission.

Not a very reliable gearbox, weak points are the torque converter and 440 solenoid block.

I would make this picture last, because first the stopper 429 is removed. The caliper 909 is removed and then everything else.

To remove planetary 40, you need to unscrew bolt 7845.

Solenoid block of a new design.

Old-style solenoid block gaskets.

What changes without fail when repairing this automatic transmission:

What very often breaks down in these automatic transmissions:

CHRYSLER 300M, Cirrus, Concorde, Grand Voyager, LHS, PT Cruiser, Pacifica, Sebring, Cirrus Coupe, Neon, Stratus, Town & Country, Voyager, Intrepid, 300M (Chrysler Cyrus, Concorde, Grand Voyager, LHS, PT Cruiser, Pacific, Sebring, Cyrus Coupe, Voyager)
DODGE Caravan, Grand Caravan, Intrepid, Neon, Stratus (DOJ Caravan, Grand Caravan, Intrepid, Neon, Stratus)
PLYMOUTH Acclaim, Breeze, Caravella, Grand Voyager, Neon, Voyager (PLYMOUTH Acklaym, Breeze, Caravel, Grand Voyager, Neon, Voyager)

All of the above vehicles were equipped with two types of automatic transmissions 31TH (A670), 41TE (A604) and its variant for a longitudinally located engine with front-wheel drive 42LE (A606) and 42RLE with rear-wheel drive or all-wheel drive:

1. Repair of automatic transmission Chrysler type 31TN

Hydraulically controlled three-speed automatic transmission and one solenoid that engages the torque converter lockup. One of the cheapest Chrysler automatic transmissions to maintain and repair. Produced until 2001 inclusive.
The smaller (lighter) the car, the greater the automatic transmission resource (true for all automatic transmissions): on the Dodge Neon, the runs before the first repair are sometimes up to 300 thousand km, the family of minivans asks for repairs with an average mileage of 100-150 thousand km.

This gearbox has no obvious "sores", almost all automatic transmission units break down and wear out. Especially 31TH (as well as 41TE) does not like slipping in snow or mud, since the differential lubrication system is not designed for this. In winter, they often turn to a car service because of the damaged case of this automatic transmission. The reason for the damage to the case is as follows: with active slipping, the differential pin is thermally stuck to the satellite; breaks the cotter pin securing the pin in the differential housing. Under the influence of centrifugal forces, the finger leaves the differential housing while driving and breaks the automatic transmission housing. If you are lucky and the finger does not fall out of the differential housing, then it will simply saw through it. The shavings get into the oil, damage the rubber seals, then the clutches burn out.

The second problem with this box is damage to the torque converter. Damper springs break, fragments damage the turbine and pump blades, some of them with oil enter the pump and clog the oil channels. Also, the torque converter lock-up clutch often wears out or falls off.

Often, over time, the splines of the clutches of the FORWARD package are cut off. Initial symptoms - the car jerks when starting to move. In the end, the automatic transmission stops loading onto Driver and moving forward.

If only the reverse gear is missing, then most likely there is a problem with the brake band (Revers band) or the piston is faulty Servo... In any case, a complete repair of the automatic transmission is required.

The planetary gearbox (consisting of 2 planetary gears and the 1st sun gear) is rather weak for this automatic transmission and, with a mileage of 100t km or more, it starts to crumble and eventually completely collapses, jamming the automatic transmission.

2. Automatic transmission type 41TE (A604)

Electronic four-speed automatic transmission. It is still produced with minor variations.
Automatic transmission 41TE - the box is quite unique and advanced. It does not have a single brake band, not a single one-way clutch (overrunning clutch - Overrun clutch).Only two planetary gears and 5 clutch packs. The solenoid valves are grouped in a single block outside the transmission. Due to this, the valve body is simple and reliable.

The old name of the box is A604, the new one is 41TE. This is a 4-speed automatic transmission for Chrysler, Dodge, Plymouth and some Mitsibishi front wheel drive vehicles. It has been produced since 1989, initially it was paired with a Chrysler 3.3L transverse engine. The A604 has become a powerful breakthrough in the field of automatic transmission control of modern cars. It was the first to use adaptive control of the gear shift mode, that is, the automatic transmission computer is able to optimize the shift mode, depending on the external conditions and the driving style of the car. The box turned out to be quite compact and versatile. Its variation 42LE (A606) used on cars with longitudinal engine (Chrysler Concord, Eagle Vision, Dodge Intrepid, LHS, 300C) and 42RLE with rear-wheel drive.

• five packs of friction clutches (Underdrive, Overdrive, Lowrevers, 2-4 clutch, Revers clutch);
• four hydraulic accumulators;
• two planetary gearboxes;
• hydraulic pump;
• valve body;
• solenoid block (4 pcs) assembled with pressure sensors (3 pcs);
• 8000r (check availability) replacement 1500r
• built-in differential;
• 2x electromagnetic speed sensors.

The service life of the automatic transmission declared by the manufacturer is 300,000 km, in practice, breakdowns happen already at 70,000 km. Of the noticed shortcomings stand out:

1. Wear of the splined connection and the planetary gear pinion shafts Front planet;

2. Wear of splines Overdrive & Reverse Clatch Hub;

3. Release boxes after 2001 are equipped with redesigned torque converters. Unfortunately, less reliable than the previous ones;

The damper springs come out of the standing position, the blocking clutch crumbles, which leads to a malfunction of the pump and bearings in the torque converter (screeching when the selector is turned on R or D, as well as the shavings clog the lubrication channel of the planetary gear set, which in turn leads to a FATAL breakdown of the automatic transmission. It turns the bearing of the rear planetary gear set in the housing, with such a breakdown the automatic transmission cannot be repaired. To prevent such a breakdown, it is recommended not to operate the automatic transmission with any transmission errors. especially with P0740 - the torque converter lock is slipping, which means it has already flown off and at any time can disable the automatic transmission.

4. The solenoid block is installed outside the automatic transmission, which leads to frequent oil leaks from under the gasket or from the block itself. Also, the solenoids and pressure sensors themselves, which are in the same housing, often fail. The automatic transmission goes into emergency mode (2nd gear).

5. As in the case of 31TH, the differential pin clings to the satellite in case of frequent and long slippage of the 1st wheel, which leads to damage to the automatic transmission case.

6. Approximately 10% of those who applied for repair crank the bearing race in the automatic transmission housing. The reason is the rear planetary bearing lubrication channel clogged with a torque converter lock. With such a breakdown, the automatic transmission cannot be repaired.

7. The period of oil and filter change is 25,000 km - 50,000 km. Use ATF + 4 oil recommended by the manufacturer;

8. Often they contact the service station with the problem of oil splashing through the automatic transmission dipstick or through the sopun. The reasons are oil overflow above the level, clogged sopun, overheating of the automatic transmission, especially in summer in traffic jams or when driving with an overload (trailer, 7 passengers, driving in the mountains). Clean the sopun, do not overflow the oil above the level, put an additional radiator on the automatic transmission cooling, clean the air conditioner radiator honeycomb, since the automatic transmission radiator is behind it and does not receive additional air cooling, ensure that the cooling fans of the main radiator work properly.

With frequent transitions to emergency mode, the presence of error codes associated with automatic transmission malfunctions (P0700) you can read it yourself 3 times on / off the ignition key, the smell of oil burns, the oil color is black, noises, squeals from the automatic transmission, the presence of a large amount of shavings in the automatic transmission pan when changing the oil - Load the car on a tow truck and take it to a competent Chrysler automatic transmission repair service station.Towing on a rope or even moving on its own can significantly increase the cost of repairs.

In 1989, the American automaker Chrysler offered four-speed automatic transmissions. A604... This transmission modification has been developed for use on front-wheel drive vehicles with an engine volume of 2 to 4 liters.

The automatic transmission A604 was installed on the Chrysler Voyager and Dodge Caravan vehicles. It is on these two vehicles that the A604 transmission is most widely used. Actually Automatic transmission A604 became the first American automatic transmission to receive fully automatic hydraulic control. Thanks to the presence of computer control, the gearbox could adapt to the driving style of the car owner. The computer brain monitored the correct operation of all transmission units, which made it possible to provide the most comfortable and economical ride in a car equipped with an automatic transmission.

The valve body with fully electronic solenoids was responsible for lubricating the moving parts of the transmission. An automatic system determined the network oil pressure and its temperature. Also, the automatics coordinated the degree of opening of the solenoids and the speed of the vehicle. This ensures efficient lubrication and good cooling of the gearbox.

Thanks to its relatively simple design, the A604 automatic transmission is quite reliable and durable. The need for overhaul arises when the mileage is over 400,000 kilometers. In some cases, problems are noted in the operation of the electronic control system, which forces the replacement of the central unit and power cables. The valve body turned out to be quite reliable, and only when using not too high-quality oil with a run of 300 - 400 thousand kilometers does it become necessary to clean it. Solenoids change as a set for 200,000 kilometers. It is possible to determine the presence of problems with the valve body by the characteristic jolts when shifting gears. We also recommend that you regularly inspect the automatic transmission for oil leaks. In the event that there are large smudges, they must be eliminated by replacing the leaky gaskets.

Attention! Car service network of favorable prices. Camber check is FREE! No queues! Repair on the same day!

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Well, here it is clear what the conversation is about.

# 1 Post TISA Mon Nov 03, 2008 8:21 pm

I AM GIVING A REPORT ABOUT THE OVERHEAD OF THE AUTOMATIC TRANSMISSION 41 TE IN HOME CONDITIONS MAY BE PREFERRED TO ANYONE ..

# 2 Post Igor_Emelyanov Wed Nov 04, 2008 6:04 am

# 3 Post KOYT 09-03-08, 08:31

# 4 Post TISA 09-03-08, 08:16

# 5 Post Shurpa_Korobkin 09-03-08, 08:24

You are kindly requested, before asking a question in the config and opening a new topic, look for the answer to your question here:
LINK 1, here: LINK 2 and here: LINK 3
I am sure that 90% of the answers you will find on the links provided. Also - try searching from the MAIN page of the site - there may be more complete results!

P.S If you know the error code, then just type it into the search line. And note that the first letter of the code must be typed in the "Latin" layout! Otherwise, the search results will lead you nowhere.
The first letter of the code is NOT the Russian letter “P”!

And more - a HUGE request to write in this forum in RUSSIAN - save Albanian for a smoking room.

Long-liver