Problems · NHTSA complaints
1998 Jaguar XJ8 problems
Owners filed 83 complaints about the 1998 Jaguar XJ8 with NHTSA between Feb 1999 and Sep 2020. The most-cited component is engine and engine cooling (35).
Complaints
83
Filed with NHTSA
Crashes
3
Reported by owners
Fires
1
Reported by owners
Injuries
5
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine and engine cooling35
- Power train14
- Vehicle speed control13
- Electrical system11
- Fuel system, gasoline4
- Engine3
- Suspension3
- Seats3
- Air bags2
- Visibility2
- Electronic stability control (esc)1
- Fuel system, other1
- Exterior lighting1
- Steering1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 11, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
3
5
3
8
15
18
6
3
7
1
3
3
1
3
1
0
0
1
0
1
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 1999 | 3 |
| 2000 | 5 |
| 2001 | 3 |
| 2002 | 8 |
| 2003 | 15 |
| 2004 | 18 |
| 2005 | 6 |
| 2006 | 3 |
| 2007 | 7 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 3 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 1 |
| 2019 | 0 |
| 2020 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine and engine cooling
35 reports1 crash
“ENGINE STALL AT HIGH SPEED ON HIGHWAY, NOTICE THERE HAS BEEN RECALL ON THIS BEFORE. JUST PURCHASE THE CAR AND CHECK IT OUT CARFAX AND NO MENTION THIS CAR WAS TAKING IN FOR THIS RECALL CAN I STILL RESPOND TO THIS RECALL AND HOW? [XXX] *TR”
Power train
14 reports
“TL* THE CONTACT OWNS A 1998 JAGUAR XJ8. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS OR AT A STAND STILL, THE GEARS FAILED TO ENGAGED PROPERLY WIT THE FUEL INJECTOR, POWER TRAIN, TRANSMISSION WARNING LIGHTS ILLUMINATED AND THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO BROWN'S JAGUAR (10505 MIDLOTHIAN TURNPIKE, RICHMOND, VA 23235) WHO WAS UNABLE TO DIAGNOSE THE VEHICLE. THE CONTACT WAS REFERRED TO AN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT THAT THE TRANSMISSION MODULE FAILED AND NEEDED TO BE REPLACED. THE TRANSMISSION MODULE WAS REPLACED HOWEVER, THE FAILURE RECURRED INTERMITTENTLY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WERE NO RECALLS WAS ON THE VIN. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBERS: 06E043000 (FUEL SYSTEM, GASOLINE) AND 99V138000 (POWER TRAIN) AS POSSIBLE SOLUTIONS TO THE FAILURE. THE FAILURE MILEAGE APPROXIMATELY 121,000.*DT*JB”
Vehicle speed control
13 reports1 crash
“TL*THE CONTACT OWNS A 1998 JAGUAR XJ8. WHILE TRAVELING 70 MPH THE CONTACT RELEASED HIS FOOT OFF OF THE ACCELERATOR PEDAL AND NOTICED THAT THE VEHICLE HAD SUDDENLY SHUT OFF WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED AND 2 YEARS PRIOR THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE THROTTLE BODY WAS REPLACED. THE FAILURE MILEAGE WAS 62000 AND THE CURRENT MILEAGE WAS 68000.”
Electrical system
11 reports1 fire
“OVER THE PAST SIX (6) MONTHS, THE VEHICLE HAS STALLED ON THE HIGHWAY APPROXIMATELY 4 TIMES. HAD TO DRIFT ONTO THE SHOULDER, PUT VEHICLE IN PARK TO START CAR AGAIN. THAT IS A VERY DANGEROUS SITUATION TO BE ON AN INTERSTATE TRAVELING AT A SPEED OF 50 AND ABOVE HAVING TO DRIFT ACROSS LANES WITH ABSOLUTELY NO POWER. AS OF THIS PAST WEEKEND, I STARTED THE CAR, THE AIRBAG LIGHT WOULD NOT GO OFF. THE NEXT DAY, THE CAR WAS MAKING A HORRIBLE NOISE AND ONCE AGAIN THE AIRBAG LIGHT WAS ON. THE NOISE SOUNDED AS IF SOMETHING WAS LOOSE UNDERNEATH THE HOOD. THE CAR SOUNDED SO HORRIBLE, I HAD IT TOWED VERSUS DRIVING IT TO THE SHOP. I GOT THE BAD NEWS THAT THE ENGINE HAS NO COMPRESSION AND NEEDS TO BE REPLACED. THE MECHANIC HAS NO IDEA WHAT WENT CAUSED THIS. I WILL HAVE TO GET ANOTHER ENGINE OR LET THE MECHANIC BREAK THE CURRENT ENGINE DOWN TO SEE WHAT PARTS CAN BE RE-USED. I READ ON ANOTHER WEBSITE THAT A FEW PEOPLE HAD TO HAVE ENGINES REPLACED ON THE 1998 JAGUARS FOR NO APPARENT CAUSE. THIS IS RIDICULOUS AND NO FAULT OF MINE. I HAVE KEPT UP THE MAINTENANCE. I FOUND THIS LINK WHICH SUGGESTS POSSIBLE ENGINE FAILURE CAUSES HTTP://WWW.JAGSERVICE.NET/JAGUAR_V8_SECONDARY_TENSIONERS.HTM. *NM”
Fuel system, gasoline
4 reports1 related recall
“I HAVE A 1998 JAGUAR XJ8. THE VEHICLE STALLS AT HIGH SPEEDS, GENERALLY AFTER I ACCELERATE OVER 50 MPH. THE VEHICLE IS EXTREMELY DIFFICULT TO CONTROL AND CAN ONLY BE RESTARTED IF YOU BRING IT TO A STOP. I HAD THIS HAPPEN WHILE DRIVING THE CAR IN CA. I WAS ALMOST KILLED WHEN THE VEHICLE STALLED. JAGUAR DEALER, SANTA MONICA,REPAIRED AS CYL BURN OUT. MECHANIC TOLD ME STALLING HAPPENED FREQUENTLY WITH THIS MODEL. A FEW YEARS LATER,SAN ANTONIO TX ON THE 183 HIGHWAY RUSH HOUR. CAR STALLED CAUSING ME TO SWERVE NEXT TO CENTER MEDIAN RIPPING OFF THE ENGINE COVER ON DEBRIS. JAGUAR FIXED THROTTLE BODY NOT ENGINE COVER.SERVICE BULLETIN, DEFECTIVE THROTTLE BODY. CAR RAN POORLY THEREAFTER. STALLED AGAIN YEAR LATER. DEALER WOULD NOT REPAIR. $3,000 TO FIX.. RECENTLY DISCOVERED CONSUMERS WORLD WIDE HAVE SAME PROBLEM. SERVICE BULLETIN REPAIR ONLY SHORT TERM FIX. JAGUAR BLOG IN THE UK -CONSUMER DISCOVERED FROM A JAGUAR MECHANIC , MOST THROTTLE BODIES NEEDED TO BE CLEANED PERIODICALLY AS THE LINING BAD AND BUILD UP OR DEPOSITS WOULD FORM ON THE WALLS OF THE THROTTLE BODY AND CAUSE IT TO MALFUNCTION. MY MECHANIC HAD HEARD OF SIMILAR PROBLEMS. I CALLED SEVERAL JAGUAR DEALERSHIPS. I…”
Engine
3 reports
“SECONDARY TIMING CHAIN BROKE DESTROYED THE ENTIRE ASSEMBLY IN ADDITION TO ENGINE DAMAGE”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.