Reply With QuoteSounds like the symptoms of worn shock absorbers/ dampers,
The traditional method to test is to remove and push down and check resistance
Master
SupporterHi all
I have a Jayco Journey on the back of the D4 3.0 SE and as we drive it along it tends to bounce the rear end a bit. We had a hilux before with a smaller van and no issues so have some experience towing but not with air suspension.
- The van has a measured and confirmed ball weight of 180kgs
- There is nothing on the rear bumper bar
- The van is about 2500kgs
So my questions are
- Is this normal with the D4 airbag suspension?
- Would a Mitch Hitch make any difference?
- Its done 140k so would the rear suspension be tired? And how do you assess this? And what would need replacing please?
- Is there some sort of set up Im not doing eg particular tyre pressures, etc?
Its got me perplexed.
2011 SDV6 3.0L + Torus Kakadu, Winchbar, UHF, roof racks, 1 wife, 4 dogs, not enough fishing rods, and Wallabies supporter.
Master
Sounds like the symptoms of worn shock absorbers/ dampers,
The traditional method to test is to remove and push down and check resistance
Master
I always thought the life of a shock absorber/damper was around the 150km mark so depending on how much towing the vehicle has been doing, it may well be due for some.
Cheers
Scott.
Swaggie
There's no rule for normal shock life because it depends on roads travelled, loads, speeds etc but by 140K the shocks are likely way past their useful life especially with 180kg bouncing on the tow-ball.
Hand operation of a shock cannot possibly be a valid test for worn shocks when normally there's 1.5 tonnes being damped.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
Master
Hand operation will show up a well worn damper, any shocks that ive changed always have a marked difference in feel between old and new . Just my experience
LordRover
SubscriberIt's not whether you can push them down. It's how they damp it back to stationary that you are testing for. However, there's no way I can do that test on my D2 with King Springs. Pedders do a cheap suspension test. Doesn't mean you have to but their stuff.
Bouncing is most likely the dampers, regardless of the type of car, but I"d also check you haven't got too much weight on the towball.
JayTee
Nullus Anxietus
Cancer is gender blind.
2000 D2 TD5 Auto: Tins
1994 D1 300TDi Manual: Dave
1980 SIII Petrol Tray: Doris
OKApotamus #74
Nanocom, D2 TD5 only.
Master
SupporterOther then OEM, is their a better dampner/shock absorber option? TIA.
2011 SDV6 3.0L + Torus Kakadu, Winchbar, UHF, roof racks, 1 wife, 4 dogs, not enough fishing rods, and Wallabies supporter.
LordRover
SubscriberOh, wow! He knows not what he asks!Originally Posted by rambada
Where's the popcorn?
JayTee
Nullus Anxietus
Cancer is gender blind.
2000 D2 TD5 Auto: Tins
1994 D1 300TDi Manual: Dave
1980 SIII Petrol Tray: Doris
OKApotamus #74
Nanocom, D2 TD5 only.
LordRover
SupporterIf you do a www search on pitching when towing you will find it has been reported quite a lot. My RRS does it and it has good shocks - you only notice when you haven't towed for a while and by the end of the trip not noticeable as you get used to it.
Yes can be shocks but I consider it to be an unwanted but not troublesome characteristic of the air suspension.
REMLR 243
2007 Range Rover Sport TDV6
1977 FC 101
1976 Jaguar XJ12C
1973 Haflinger AP700
1971 Jaguar V12 E-Type Series 3 Roadster
1957 Series 1 88"
1957 Series 1 88" Station Wagon
Wizard
The ball weight of my van is around 250kg & I can honestly say that I have not noticed any unexpected bouncing. Rear tyre pressures are normally around 45psi when towing. Undulations in the road will cause front to back pitching but this is normal to me. My D4 is a fair bit younger than your's though.
+ 2016 D4 TDV6
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