Is the AW4 transmission on the Jeep XJ Cherokee?

Diagnosis of faults in the Jeep AW4 transmission. The automatic transmission used in the Jeep XJ Cherokee is nearly bullet proof. Seldom does it ever give trouble.

How does the torque converter work on a jeep AW4?

Normally, the transmission with switch to 2nd at 20 to 25 mph depending on the TPS signal. It gets its speed reference from the internal speed sensor so if you are in low range, the speed will be different. In the 1-2 position, the torque converter can lock up in first or second gear. In 3 or D it will only lock in 3 or four.

How does the AW4 transmission switch to 2nd?

What should the engine speed be on a jeep AW4?

The normal sequence is to shift to second, and then third, then forth and then the torque converter will lock up giving an engine speed of about 2700 RPM at 55 MPH. Armed with this information, you could be able to sort through nearly any fault in the AW4.

Diagnosis of faults in the Jeep AW4 transmission. The automatic transmission used in the Jeep XJ Cherokee is nearly bullet proof. Seldom does it ever give trouble.

What kind of transmission does a Jeep Grand Cherokee use?

Aisin-Warner AW4 Transmission. The Aisin Warner AW4 transmission is an automatic shift, four-speed overdrive transmission used in the 1987-2001 Jeep XJ Cherokee and MJ Comanche models. Its only year in the ZJ Grand Cherokee was 1993, and only with the six-cylinder. The AW4 is predominantly found behind the AMC 4.0L (242 ci) I6 engine.

What kind of transmission does a Jeep ZJ have?

The Aisin Warner AW4 transmission is an automatic shift, four-speed overdrive transmission used in the 1987-2001 Jeep XJ Cherokee and MJ Comanche models. Its only year in the ZJ Grand Cherokee was 1993, and only with the six-cylinder. The AW4 is predominantly found behind the AMC 4.0L (242 ci) I6 engine.

Why does my Jeep Grand Cherokee not shift gears?

For example, you may find that you’re only able to drive the car in the automatic transmission’s third gear, only being able to select the other two gears when you shift the transmission manually. The most common cause of transmission problems is the easiest to fix: check the fluid level in the transmission and restore it to the proper levels.

Is there a problem with my Jeep Grand Cherokee?

Very often, this will solve the problem. But Jeep Grand Cherokees seem especially prone to more serious transmission problems, and some owners are quite vexed at their inability to determine the causes.

Can a Jeep Grand Cherokee Drive in two gears?

You’re often still able to drive the vehicle, but it only operates in one or two gears. For example, you may find that you’re only able to drive the car in the automatic transmission’s third gear, only being able to select the other two gears when you shift the transmission manually.

What happens if the transmission on a Jeep Grand Cherokee overheats?

Overheating is the worst thing that can happen to your Jeep Grand Cherokee’s transmission. An overheating transmission will drastically shorten its service life. If you suspect that your transmission is overheating, doing something about it now can keep you from an expensive transmission repair later.

Do you need an external transmission cooler on a Jeep Grand Cherokee?

As long as your Grand Cherokee is stock and used in the way the manufacturer intended, you shouldn’t need to add an external transmission fluid cooler. But, if you are towing or live in an extremely warm climate that tests the transmission constantly, an external transmission cooler can help keep your transmission cool.

When did Jeep stop using the AW4 transmission?

Greg, a DCX tech, wrote that the AW4/AX4 transmission was used on 6-cylinder Jeep Cherokees through the end of production, and on the first six-cylinder 1993 Grand Cherokees (built in 1992 and 1993), but on the Grand Cherokee it was phased out midway through the 1993 model year.

Is the Aisin-Warner AW4 transmission a good transmission?

Aisin-Warner AW4 Transmission. The AW4 is a light to medium-duty transmission. Ours, our callers’, and customers’ experiences with the AW4 are less than stellar. They have a tendency to generate excessive amounts of heat, and are known for unnecessarily consuming more engine power than some other automatics.

What kind of transmission does a Toyota AW4 have?

The AW4 is predominantly found behind the AMC 4.0L (242 ci) I6 engine. The AW4 was also used behind the AMC 2.5 four-cylinder. A similar transmission is used in some Toyota RWD applications, known as the A340. Gear Ratios for the AW4 are 2.80, 1.53, 1.00 & .75.

When did the Jeep AW4 transmission come out?

These transmissions were used in Jeep applications from 1987-2001. This transmission can be identified by the 19 bolt, rectangular shaped oil pan and 4 forward gears. These transmissions can be found in the following vehicles; however you should double check your application with the bolt count.

Is the Aisin-Warner AW4 transmission OEM compatible?

As the AW4 was married to the Jeep engines mentioned above, it is OEM compatible with them. The AW4 is an electronically controlled transmission, and is therefore compatible only with the 4.0L engine and its PCM package.

Is the AW4 transmission compatible with a 4.0L engine?

The AW4 is an electronically controlled transmission, and is therefore compatible only with the 4.0L engine and its PCM package. We do not offer any conversion from this transmission to V6 or V8 power.

What kind of transmission does a Jeep XJ use?

Peugeot BA 10/5 – Used by AMC, it was used between 1987 to around 1989 in various Jeeps. It was widely used with the AMC 258 I6 engine ( View Here ). There were three automatic transmissions used in a Jeep Cherokee XJ.

Can a jeep transmission wire harness wear out?

For example, your rig has a Jeep transmission wiring harness and an engine wire harness assembly. Unfortunately, over time, wiring harnesses can wear out. To be certain your machine has the spark it needs to perform, replace worn or damaged harness assemblies.

What is the purpose of a Jeep YJ wiring harness?

The purpose of a Jeep YJ wiring harness is to deliver electrical and other information to places your rig needs it. Many of the Jeep’s systems have their own wiring harnesses. For example, your rig has a Jeep transmission wiring harness and an engine wire harness assembly.

What was the automatic transmission on a 1997 Jeep?

There are alternate names for the transmissions used on 1997 Jeep Cherokees. The AW4 is also referred to as the A340, the 30RH as the A904, the 46RH as the A518 and the 42RE as the A500.

Where are the transmission numbers on a Jeep Cherokee?

Step 1 Access the Jeep Cherokee’s transmission by looking underneath the Cherokee. Identification numbers for the AW4 and 30RH are located on the passenger’s side while 46RH and 42RE numbers are on the driver’s side of the transmission. Locate the transmission’s identification numbers.

What kind of transmission does a Jeep Grand Cherokee have?

44RE: A four speed automatic transmission was used in 1996 to 1998 Jeep Grand Cherokee’s with 5.2L engines. 42RE: A four speed automatic transmission was used in 1993.3 to 1998 Jeep Grand Cherokees with 4.0L engines.

What kind of transmission does a Jeep Comanche use?

AW4: A four speed automatic transmission was used in 1987 to 2001 Jeep Cherokee (XJ), & Jeep Comanche with 2.5L & 4.0L engines. It was also used in 1987 through 1992 Jeep Comanche & 1993 through 1993.5 Jeep Grand Cherokee with 4.0L engines.

Why is my AW4 transmission not working at 25 mph?

The harness passes right behind the transfer case shift linkage and can be damaged by the linkage if it is moved around by a transfer case drop or something like that. Normally, the transmission with switch to 2nd at 20 to 25 mph depending on the TPS signal.

What kind of car is a 1998 Jeep Cherokee?

Private Seller Used 2000 Jeep Cherokee 2WD Sport 4-Door $10,988 Boktor Motors Inc Used 1998 Jeep Cherokee 4WD Limited 4-Door $10,995 Specialty Auto Spot Used 1998 Jeep Cherokee 4WD 4-Door $11,950 Private Seller Used 2000 Jeep Cherokee 4WD Sport 4-Door $11,995 Specialty Auto Spot Used 1999 Jeep Cherokee 4WD 4-Door $12,995 J’S Motors Used 2000

How much does a 1999 Jeep Cherokee cost?

Jeep Cherokee 4WD Sport 4-Door $11,995 Specialty Auto Spot Used 1999 Jeep Cherokee 4WD 4-Door $12,995 J’S Motors Used 2000 Jeep Cherokee 4WD Sport 4-Door $13,500 Private Seller Used 1999 Jeep Cherokee 4WD 4-Door $27,995 J’S Motors Used 2000 Jeep Cherokee 4WD Sport 4-Door $28,995 J’S Motors 10 Jeep Cherokee vehicles for sale near you.

Where was the 1998 Jeep Cherokee last serviced?

1st owner drove an estimated 8,531 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 28,505 miles/year • 4th owner drove an estimated 640 miles/year. Last serviced at 201,834 miles in Cumberland, MD on 08/13/18 • Vehicle serviced. Rebuilt title issued|Salvage title issued.

How many volts does a Jeep Cherokee have?

AT least one wire if not two wires will or should have 5 volts at the TPS with the key on. Depending on the computer on this vehicle, the cam and crank sensors may get 5 volts or they may get a different reference voltage with the key on.

What to do if your Jeep AW4 is not working?

To test if the trouble is electric or mechanical, pull the fuse to the TCU or disconnect the wiring harness. 1-2 will give first gear only, 3 will give third gear. D will give forth gear. The torque converter will not lock manually. You can drive the Jeep just fine this way until you figure out what is wrong.

What should the voltage be on a jeep AW4?

The 1990 and earlier used +12 to lock and zero to unlock. The 1991 and up is the opposite. The TPS voltage should read about .5 volts with the throttle closed and 4.5 volts with it open. It should transition smoothly between the two numbers. It seems to work fine even if the voltage is a little off.

What is the output shaft on a jeep AW4?

The earlier Jeep AW4 has a 21 spline output shaft for connecting to the transfer case input shaft. With the release of the HO 4.0L in the 1991 the AW4 was upgraded to a 23 spline output shaft.

What is the model number of a jeep AW4?

The AW4 may be identified as a model #30-43LE for 2wd versions and as a model #40-30LE for 4wd versions. The Jeep AW4 was factory-married to the Jeep Jeep New Process (aka New Venture) Model 231 transfer case, in addition to the NP242 Full-Time transfer case.

45RFE: The 45RFE four speed automatic transmission was used in 1999 Jeep Grand Cherokees with 4.7L engines. 46RE: The 46RE four speed automatic transmission was used in 1998 Jeep Grand Cherokees with 5.9L engines. 44RE: The 44RE four speed automatic transmission was used in 1996 to 1998 Jeep Grand Cherokee’s with 5.2L engines.

What are the different types of Jeep manuals?

Our Jeep Automotive repair manuals are split into five broad categories; Jeep Workshop Manuals, Jeep Owners Manuals, Jeep Wiring Diagrams, Jeep Sales Brochures and general Miscellaneous Jeep downloads. The vehicles with the most documents are the Cherokee, Wrangler and Compass.

Where is the Transmission Control Unit on a jeep?

A transmission control unit located under the passenger side panel under the glove box controls the AW4. The panel is one piece all the way across and there are more control boxes on the driver side so be careful when you remove it.

When did the Cherokee XJ transmission come out?

It can help you determine the parts you need for your Cherokee XJ transmission project, as well as help with oil change information and regular maintenance. The XJ Cherokees were built between 1984 to 2001. They were available with an automatic or manual transmission, depending on the year, or the engine.

How to engage 4WD in a Jeep Wrangler manual transmission?

You engage 4WD in a manual transmission Jeep by depressing the clutch and shifting the 4WD gear shifter into 4H. Always ensure you are not accelerating while doing so and give the 4WD shifter a firm yank to ensure it engages fully. When engaging 4L (Low Range) you need to drive as slow as 2-3 MPH.

Are there any manuals for the Jeep Cherokee?

In the table below you can see 3 Cherokee Workshop Manuals,0 Cherokee Owners Manuals and 62 Miscellaneous Jeep Cherokee downloads. Our most popular manual is the 1984-1998–Jeep–Cherokee 4WD–6 Cylinders L 4.0L MFI OHV–31646202 . This (like all of our manuals) is available to download for free in PDF format.

How can you tell what transmission a Jeep has?

There are other ways to tell what transmission you have. Your VIN is able to tell you too, but these are the basics above. Note that even though some of these are used in other kinds of vehicles, that doesn’t mean those transmissions will bolt up to a Jeep without mods.

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