1999 Jeep Wrangler yj problems
The Jeep Wrangler YJ is the first generation of Jeep Wrangler four-wheel drive small off-road vehicles, rebadging and succeeding Jeep's CJ series, which was produced from 1944 to 1986. The first Wrangler (internally "YJ") was launched in 1986 and ran through 1995. Although the new Wrangler stood out from its CJ predecessors by its square headlights, its body was a direct evolution of the preceding CJ-7, and rode on the same wheelbase. The Wrangler featured an updated interior, offered more comfort and improved safety and handling, through a revised chassis that included a wider track and a slightly lower stance.
Development of a potential CJ-7 replacement was green-lit in 1982, with engineering and design work (under Chuck Mashigan) commencing. After approval earlier in 1983, a final design freeze occurred by the fall of 1983, with CJ-7 based mules being built in late 1983 and the first production body test prototypes in the spring of 1984. By late 1985, development concluded, as the transition from pilot to series production began. In February 1986, the 1987 model year Jeep Wrangler was unveiled. It entered production that March and went on sale on May 13, 1986.
History
The Jeep YJ, sold as the Wrangler in the United States, replaced the Jeep CJ line in 1986 and was built in Brampton, Ontario, Canada, until the plant closed on April 23, 1992. Production was then moved to Toledo, Ohio, using the same plant that produced the Willys Jeeps during World War II. Jeep could not use the Wrangler name in Canada, as General Motors had used it on a truck variant and owned the rights to the name there.
American Motors Corporation (AMC) had designed the new Jeep to be more comfortable on-road in an attempt to attract more daily drivers. It was a significantly new design with a wider track, slightly less ground clearance, more comfort and improved handling. The YJ still had leaf spring suspension similar to that of the CJ – however the springs were wider, and the first Wrangler sported trackbar suspension links and anti-roll bars for improved handling and safety, making it less easy to flip by untrained or unwary drivers.
Despite the new grille, the body is very similar to that of the CJ-7, and it is interchangeable with some minor modifications. The YJ also was given a larger windshield over the CJ. The YJs are easily identifiable due to the rectangular headlights and the fact that the wiper blades rest on the windshield, giving this version a distinctive look. The blades rested on the windshield due to the now wider arc of the blades to clean the larger windshield. These two changes were later removed when the TJ was launched in 1996. 632,231 YJs were built through the 1995 model year, although YJs were still sold into mid-1996, bringing the total production number to 685,071 units.
The YJ used a 2.5 L AMC 150 I4 or optional 4.2 L AMC 258 I6 until 1990. Power outputs at the time of introduction are 117 hp (87 kW) for the fuel injected four-cylinder, while the carburetted 'six only produces 112 hp (84 kW), albeit with more than fifty percent more torque than the smaller engine. Starting in 1991, a fuel-injected, 190 hp (142 kW) 4.0-liter AMC 242 variant replaced the AMC 258 straight-six unit. The NP207 transfer case was used only for 1987 and replaced by the NP231.
In 1988, the Sahara model debuted. The roll cage was extended in 1992 to allow for rear shoulder belts, Also that year, the YJ switched over to an electronic speedometer, outmoding the cable speedos on older YJs. Anti-lock brakes were added as an option in 1993. An automatic transmission option for four-cylinder Wranglers came in 1994, as well as a standard center high-mounted brake light. Also, the clutch slave cylinder on manual transmission Wranglers was moved outside of the transmission's bellhousing to allow for easier replacement. In 1995, the Dana 30 larger U-joints were used .
There were no 1996 model year Jeep Wranglers. The last YJs were sold as 1995 model years but featured a few new parts not seen on any earlier YJ. This included the new TJ bumpstops on the hood (rubber boots vs the traditional U-bars), reinforced tailgate hinges, and some even had rear TJ bumpers. Some also got the newly tuned straight-6 engine that was designed to run quieter in preparation for the TJ.
Top options for YJ were the same as those offered on TJ. A Soft top with "half doors", featuring soft plastic zipper windows came standard (windows could be removed completely from these doors). Full-frame doors with conventional glass windows were optional on soft-top models. Hard tops with rear wiper and defroster were optional, but came standard with full-framed doors. The YJ featured large mirrors with manually adjustable arms on half-door models, while full-framed doors received smaller adjustable mirrors with fixed arms (which were mounted further away from the door corner, compared to the larger-style mirrors). Depending on year and interior color, Jeeps could be had with the top colors in black, white, tan and gray. Roll-bar padding normally matched top color, with the exception of white tops.
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Common 1999 Jeep Wrangler yj problems
The Jeep Wrangler YJ, produced from 1987 to 1995, is known for its ruggedness and off-road capabilities. However, like any vehicle, it has its share of common problems. Here are some of the most frequently reported issues with the Jeep Wrangler YJ, based on complaints from owners:
- Fuel Pump Failure: The fuel pump is a common failure point in the Jeep Wrangler YJ. Symptoms of a failing fuel pump include longer cranking to start, sputtering or stalling engine, loss of power when accelerating, and a humming or whining noise. Diagnosing and replacing a fuel pump is relatively easy if you have basic tools and some mechanical knowledge.
- Seals and Leaks: One of the most common issues with the Jeep Wrangler YJ is leaks, particularly around the seals. The primary problem between 1997 and 2002 was the seals, which would break and leak due to a bolt that wasn't secure. Additionally, the fuel pump could cause pressure buildup, potentially damaging the engine. The fuel tank also had issues, resulting in cracks that were costly to repair.
- Axle Leaks and Wiring Harness Connections: From 2002 to 2006, there were still issues, some of which included leaks in the axles and wiring harness connections resulting in inaccurate gauge readings. These issues could lead to significant problems if not fixed promptly.
- Death Wobble: The "death wobble" is a significant safety issue associated with the Jeep Wrangler YJ. This wobble causes the vehicle to violently shake, usually around 60 mph. It was a common problem in the 1987-1991 YJ models due to a defective fuel pump that could catch on fire because it was routed across the exhaust manifold. The lack of standard safety measures such as ABS, side airbags, and stability control also contributed to the YJ's poor safety rating.
- Rust and Body Damage: As an older vehicle, the Jeep Wrangler YJ is prone to rust and body damage. Buyers should check for rust, body damage, proper seals on the doors and tops, water damage under the dash from a leaky windshield, bashes on the undercarriage from off-roading, exhaust damage, and the tops for holes and other indicators of wear. The 4WD system should also be inspected to ensure it engages properly.
In conclusion, while the Jeep Wrangler YJ is a capable and rugged off-road vehicle, it is not without its share of common problems. Owners should be aware of these issues and take steps to maintain their vehicles properly to minimize the risk of failure.
How many miles will a 1999 Jeep Wrangler last?
An older, decently cared for Jeep Wrangler can last up to 200,000 miles meanwhile, a Jeep Wrangler in perfectly good condition with frequent maintenance can last up to 400,000 miles.
How many miles does a Jeep YJ last?
How many miles do Jeep Wranglers usually last? Per Motor and Wheels, the average Jeep Wrangler for sale will last anywhere from 10-15 years. Typically, this SUV for sale near you will last 100,000-280,000 miles, which is a broad range.
At what mileage do Jeep Wranglers start having problems?
Per MotorAndWheels.com, you can expect the average Jeep engine to run for over 200,000 miles. Depending on how many miles you drive annually, a used Jeep can last over 20 years. There isn't a specific mileage that causes a Jeep to suddenly develop problems.
Which is better YJ or TJ?
For all intents and purposes, the TJ exemplifies the typical Wrangler look. In terms of broad performance differences, the TJ recouped some of the lost off-roading abilities of the YJ by raising the vehicle a tad and swapping leaf springs for a coil spring- suspension system.
What is the most common problem with Jeep Wranglers?
A list of some of the most common issues Wrangler owners have to deal with.
- Electronic Sway Bar Disconnect. Make room, death wobble. ...
- TRW Crash Sensor Defect. ...
- Jeep Vehicles with Recalled Takata Airbags. ...
- Faulty Wrangler Welds. ...
- Jeep TIPM Electrical Problems. ...
- Death Wobble. ...
- Window Regulator Failure. ...
- Wrangler Gas Overflow Complaints.
How many miles will a 1999 Jeep Wrangler last?
An older, decently cared for Jeep Wrangler can last up to 200,000 miles meanwhile, a Jeep Wrangler in perfectly good condition with frequent maintenance can last up to 400,000 miles.
What are the disadvantages of a Jeep Wrangler?
Jeep Wrangler Cons
- Poor Fuel Economy.
- Expensive.
- Lack of Cargo Space.
- Less Comfortable on the Road.
- Road Noise.
- Lack of Engine Options.
How many miles does a Jeep YJ last?
How many miles do Jeep Wranglers usually last? Per Motor and Wheels, the average Jeep Wrangler for sale will last anywhere from 10-15 years. Typically, this SUV for sale near you will last 100,000-280,000 miles, which is a broad range.
1999 Jeep Wrangler yj complaints
The NHTSA has received 0 complaints about various vehicle components related to the 1999 Jeep Wrangler yj.
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Additional sources
More sources of information about 1999 Jeep Wrangler yj problems:
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Oct 28, 2011 ... My '91 YJ has been reliable as all get-out, but it's had some issues over the past year or so. I had to have the A/C compressor replaced (it was ...
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Sep 28, 2010 ... All in all I would rather have my TJ that a JK or a YJ. Simple explanation of faith : Think of it as a movie. The Torah is the first one ...
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Jan 25, 2018 ... Are there any common problems with the Jeep Wrangler? ... 9938. 9920 ... YJ - the first-generation Wrangler: The YJ replaced for the CJ7.
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