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
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine and engine cooling35
  2. Power train14
  3. Vehicle speed control13
  4. Electrical system11
  5. Fuel system, gasoline4
  6. Engine3
  7. Suspension3
  8. Seats3
  9. Air bags2
  10. Visibility2
  11. Electronic stability control (esc)1
  12. Fuel system, other1
  13. Exterior lighting1
  14. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
19993
20005
20013
20028
200315
200418
20056
20063
20077
20081
20093
20103
20111
20123
20131
20140
20150
20161
20170
20181
20190
20201

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.

03 —Owner reports

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”
Owner complaint to NHTSAFiled Sep 6, 2011Engine and engine coolingODI 10424002

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”
Owner complaint to NHTSAFiled Sep 17, 2020Fuel system, gasoline, Power trainODI 11355622

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.”
Owner complaint to NHTSAFiled Sep 7, 2010Vehicle speed controlODI 10354147

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”
Owner complaint to NHTSAFiled Sep 14, 2005Engine and engine cooling, Electrical system, Vehicle speed controlODI 10136512

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…”
Owner complaint to NHTSAFiled Mar 15, 2007Engine and engine cooling, Fuel system, gasolineODI 10185249

Engine

3 reports
“SECONDARY TIMING CHAIN BROKE DESTROYED THE ENTIRE ASSEMBLY IN ADDITION TO ENGINE DAMAGE”
Owner complaint to NHTSAFiled Dec 1, 2018EngineODI 11155354
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.