1986 Jaguar Xj6 problems

General information about Jaguar-Xj6
Overview of popular issues
Analysis of common problems
Сomplaints list

The Jaguar XJ is a series of mid-size/full-size luxury cars produced by British automobile manufacturer Jaguar Cars (becoming Jaguar Land Rover in 2013) from 1968 to 2019. It was produced across five basic platform generations (debuting in 1968, 1986, 1994, 2003, and 2009) with various updated derivatives of each. From 1970, it was Jaguar's flagship four-door model. The original model was the last Jaguar saloon to have been designed under the leadership of Sir William Lyons, the company's founder, and the model has been featured in countless media and high-profile appearances.

Series 1, 2, and 3 (1968–1992)

Overview

The first generation Jaguar XJ was produced for a total period of 24 years, with two major facelifts – in 1973 and in 1979, with a raised front bumper and less tall grilles.

For four years, the 1968 introduced XJ was always a four-door, straight-six saloon on a 2.76 m (108.75 in) wheelbase. In 1972, a more spacious, 4-inch (10 cm) longer wheelbase (LWB) option, and a 5.3 litre V12 engine were added. On the XJ series II (from 1973), the standard wheelbase (SWB) saloons were cancelled in 1974 – but a SWB two-door (series II only) coupé was sold from 1975–1978.

The 1979 series III saloons received a redesigned greenhouse (upper body) and bumpers. The 6-cylinder series III models were replaced by the second generation Jaguar XJ in 1987, but the V12 models not until 1992.

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Common 1986 Jaguar Xj6 problems

The Jaguar XJ6 1986, also known as the XJ40, is known for several common problems that owners have reported over the years. These issues can be categorized into electrical problems, fuel system problems, suspension and steering issues, and rust problems.

One of the most common issues with the XJ40 was related to its electrical system. The car's electronic control modules were prone to failure due to issues such as water ingress and corroded connections. These issues could cause a range of problems, including a malfunctioning engine, erratic shifting in the transmission, and problems with the car's climate control system. These issues could be addressed by performing regular maintenance on the electrical system and replacing any faulty components.

Another issue with the XJ40 was related to its suspension system. The car's suspension was prone to failure due to issues such as worn out bushings, leaking shocks, and a damaged subframe. These issues could cause a range of problems, including a rough ride, poor handling, and excessive tire wear. These issues could be addressed by performing regular maintenance on the suspension system and replacing any faulty components.

The XJ40 was also known for its engine issues. The car's engine was prone to oil leaks due to issues such as a damaged oil pan or valve cover gasket. The car's engine could also experience issues with its timing chain, which could cause a range of problems, including engine failure. These issues could be addressed by performing regular maintenance on the engine and replacing any faulty components.

The XJ40 was also prone to issues related to its air conditioning system. The car's air conditioning system was prone to failure due to issues such as a damaged compressor or a leak in the system. These issues could be addressed by performing regular maintenance on the air conditioning system and replacing any faulty components.

In addition to these issues, the XJ40 was also known for its rust problems. The car's body panels and frame were prone to rusting, which could cause a range of problems, including structural failure and leaks. These issues could be addressed by performing regular maintenance on the car's body and replacing any rusted or damaged parts.

It is important to note that with proper maintenance and regular inspections, many of these issues could be addressed and prevented, allowing owners to enjoy the XJ6's advanced engineering and luxurious features for years to come.

What are the common problems with a 1986 Jaguar XJ6?

How much is a Jaguar XJ6 from 1986 worth today?

The Jaguar XJ6 1986 prices range from $6,380 for the basic trim level Sedan XJ6 4.2 to $9,020 for the top of the range Sedan.

What problems did the Jaguar XJ have?

Water pumps on 5.0 V8 and 3.0 Supercharged XJ models are prone to failure, sometimes they can fail in less than 20,000 miles. This is because coolant gets inside the bearing housing corroding the water pump bearing.

How big is a 1986 XJ6?

4.2, 4.2L, Leaded Petrol, 3 SPEED AUTOMATIC

Dimension	Metric	Imperial
Jaguar XJ6 Height	1377 mm	4 ft 6 in
Jaguar XJ6 Width	1770 mm	5 ft 10 in
Jaguar XJ6 Length	4959 mm	16 ft 3 in
Jaguar XJ6 Ground clearance unladen	178 mm	7 in

1986 Jaguar Xj6 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Jaguar Xj6 problems, we found that the most common problems with these 2023 model year vehicles are:

Structure problems
Tires problems

The graph below shows statistics for all 1986 Jaguar Xj6 vehicle components and the number of complaints received.

1986 Jaguar Xj6 complaints

The NHTSA has received 3 complaints about various vehicle components related to the 1986 Jaguar Xj6.

2002-08-29

TIRES PROBLEM

Date Of Incident: 2002-08-24
VIN: SAJAV134XHC
Components: TIRES
Summary: WHILE DRIVING ON HIGHWAY TREAD SEPARATED COMPLETELY FROM TIRE, CAUSING DAMAGE TO VEHICLE. VEHICLE IS A 1987, JAGUAR, XJ6 TIRE INFO:DRIVER'S REAR P215/70R15 TIRE, MILEAGE UNKNOWN, DOT-EJ34JLL0101, NOT ORIGINAL TIRES. *AK *JB

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1998-12-18

STRUCTURE PROBLEM

Date Of Incident: 2024-11-24
VIN: SAJAY1349GC
Components: STRUCTURE
Summary: VEHICLE DESIGN DID NOT INCLUDE UNDERCOATING APPLICATION UNDER THE VEHICLE WHICH RESULTED IN THE ENGINE RUSTING OUT. (ATTORNEY FOR CONSUMER).

Add Complaint

1998-12-15

STRUCTURE PROBLEM

Date Of Incident: 2024-11-24
VIN: SAJAY1349GC
Components: STRUCTURE
Summary: UNDERCOATING APPLIED ON THE UNDERSIDE OF THE VEHICLE WAS NOT APPLIED DUE TO DESIGN RESULTING IN ENGINE RUSTING OUT. (ATTORNEY FOR CONSUMER).

Add Complaint

Additional sources

More sources of information about 1986 Jaguar Xj6 problems:

1986 Jaguar XJ6 Reviews - Carsurvey.org

http://www.carsurvey.org/reviews/jaguar/xj6/1986/

Faults: Left cam cover gasket failed (due to age), exhaust transition gasket failed (due to age), voltage regulator failed (a common weakness ...

The "most common" problems? - Jaguar Forums - Jaguar ...

https://www.jaguarforums.com/forum/xj-xj6-xjr6-x300-26/most-common-problems-46769/

Dec 9, 2010 ... The "most common" problems? · 1 Cracks in exhaust manifold · 2 Faint LCD clock display segments · 3 Leaking automatic dimming rear view mirror – ...

What would you pay for this 1986 Jaguar XJ6 Vanden Plas. Issues ...

https://www.reddit.com/r/classiccars/comments/tqe8pl/what_would_you_pay_for_this_1986_jaguar_xj6/

Mar 28, 2022 ... $1800 to $2000. Swap in a SBC 350 or LS engine. Installation kits are available from Jags That Run (JTR).

xjs v12 common faults, - Jaguar Forums - Jaguar Enthusiasts Forum

https://www.jaguarforums.com/forum/xjs-x27-32/xjs-v12-common-faults-47974/

Jan 5, 2011 ... XJS ( X27 ) - xjs v12 common faults, - i have a jag xjs v12 1989 with 31000 miles on it, its a 2 seater convertible, basically my grandad ...