• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)

XJ8 rides rough


Freshman Member
My 96K mile 99 XJ8 used to have a soft yet firm ride, but two years ago it was stuck in ice and snow and I rocked it pretty hard to get free. Ever since the ride has been very harsh and I feel every small bump and crack in the road. Shocks feel fine with proper rebound, I have jacked the car up and there is no wheel play, tires are new with recent alignment, handling is fine, etc. Going over larger bumps gives me the sensation that something is "loose" in the suspension but I've looked and see nothing obvious. Suggestions?


Staff member
Country flag
Does this car have the automatic rear ride height system? That would be my first suspect, you might have damaged a pipe or a valve, stopping the system from de-pressurising.....

Just a hunch.


Jedi Knight
Or at 96K in might just need a set of shockers.
Similar threads
Thread starter Title Forum Replies Date
G FOR SALE - 2002 XJ8 Vanden Plas Jaguar Classifieds 0
M 2004-2008 XJ8 Air Suspension Reliability and Problems Jaguar 0
M Replacement Sub-Woofer for X308 99 XJ8 with Premium Sound System Jaguar 1
M How Do I check Fuel Pressure at Injector Rail 99 XJ8? Jaguar 5
M 99 XJ8 How Do You Troubleshoot Key Transponder Module? Jaguar 0
M Looking for a Vendor to Repair 98 - 2002 XJ8 ECM Jaguar 2
M X-308 99 XJ8 Engine ECU and Chip in Key Jaguar 2
M 4.0 V-8 for XJ8, XK8 and S-Type Differences? Jaguar 1
M Rough Running 99 XJ8 after Overheating Jaguar 42
M 99 XJ8 Thermostat Housing Failure Jaguar 0
M Self Dimming Mirror on 99 XJ8 Jaguar 1
M Sub-woofer Speaker for 99 XJ8 with Premium Sound Jaguar 1
M Intermittent Hard Starting on 99 XJ8 Trouble Code Jaguar 13
M How to Determine Trim Codes for 99 XJ8 Jaguar 3
M IPod Connectivity Kit for 2007 XJ8 Jaguar 1
F XJ8 Dosen't Start Jaguar 5
F XJ8 Dosen't Start FORUM Help 2
John_Worthington Stuck valve? 98 XJ8 Jaguar 2
John_Worthington Updating timing chains and tensioners 98 XJ8 4.0L Jaguar 9
1 It's not a classic, but XJ8 or SType4.2 Jaguar 17
E XJR XJ8 Difference? Jaguar 0
1 XJ8 or XJR? Jaguar 2
1 What's the consensus of the XJ8 up to year 2003 Jaguar 4
S Trans fluid question for 98 xj8 Jaguar 16
T XJ8 Jaguar 2
F XJ8 Tail Lights do not work Jaguar 0
S 2000 XJ8 Starting Problems Jaguar 4
R 98 XJ8 overheats Jaguar 4
J 2003 XJ8 Soverein seeking input Jaguar 5
B 1998 XJ8 Wiper over-run Jaguar 0
Got_All_4 TR2/3/3A What rides on what "front a-arms Triumph 6
5 TR2/3/3A Members rides? Triumph 18
Bret Members Rides?? MG 1
T TR2/3/3A rough running after 20 min shutdown Triumph 9
H TR4/4A 67 tr4a runs rough and losses power when hot but not over normal temp Triumph 14
skystryd remind me it's fun. good idle. rough when accelerating Spridgets 6
J Spitfire 1979 Spitfire Running rough [sputtering, exhaust poping] at start up Triumph 2
RAC68 Loose Metal Knocking/Banging Sound during Rough Idle Austin Healey 32
N Stuck Needle Valve - Rough Running Austin Healey 15
C Rough Idle - What to check? Austin Healey 12
glemon TR5/TR250 Stumped TR250 Running Rough--Follow Up Triumph 3
glemon TR5/TR250 Stumped TR250 Running Rough Triumph 8
D Rough running BT7 3 carb HELP Austin Healey 13
55modified Wanted Wanted rough BN1/2 hood for cutting up Austin Healey Classifieds 0
B Thoughts...rough running at cruise. Austin Healey 3
M TR2/3/3A Engine rough on acceleration Triumph 19
GTP1960 TR2/3/3A Rough running / a lot of carbon on the plugs Triumph 11
K TR2/3/3A Dead Petronix and rough running..... Triumph 10
I BJ8 is running a bit rough. . . Austin Healey 7

Similar threads