Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917
Slight surging when on cruise control
As above, long motorway journey yesterday down quiet M74 at c.80 mph and noticed a slight 'Kick' every now and then - not much, but noticeable - but not apparent at a higher speed or when not on cc - thoughts?
11th Jul 2014 6:28 am
crews control
Member Since: 18 Mar 2007
Location: Dorset
Posts: 5011
I've occasionally felt a slight hesitation when cruising on control for long periods... feels a bit like the cars running out of fuel, and then everything returns to normal? Not much, just enough to wake you up every now and again!
Very strange?
11th Jul 2014 6:55 am
adam
Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917
CC - spooky you where first to reply given your name tag
Yes - exactly waht it feels like - would the clock spring affect this - thoughts anyone?
11th Jul 2014 8:08 am
Bodsy Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
If it was a fault with the clock spring, normally, it will switch off the CC.
Could just be your gearbox needing a reset? They can get a bit lazy especially if the engine isn't breathing fully, like a blocked air filter or the intercooler being more blocked than you'd want etc.Bodsys Brake Bible
Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917
Thanks guys
Funniy enough - think the top Intercooler hose has gone very soft?
11th Jul 2014 8:58 am
bobgolden
Member Since: 15 Oct 2010
Location: South Yorkshire
Posts: 907
I used the cruise control on Wednesday and when I pressed the decrease set speed button, the set speed actually went up ! I've had this happen before and while it's amusing, I'm not entirely sure it's what LR intended. Fortunately, I've never had to use the same buttons to control HDC.2010 MX-5 2.0 Sport Tech PRHT
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11th Jul 2014 10:53 am
LiftedDisco
Member Since: 10 Jun 2010
Location: Towcester
Posts: 1002
Adam and CC
It may be your throttle body but you don't detail MY or engine / gearbox details.
I had similar issues with hesitation at 75-80 or so and there is actually a Technical Bulletin on this issue, but only to be addressed if the customer raises it...
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30th Jul 2014 7:04 pm
alastaid
Member Since: 31 May 2011
Location: York
Posts: 93
It does sound like the throttle body issue some of us have had. I had the surging in CC, then eventually got a red triangle and the codes confirmed. Throttle body was replaced and it was back to normal.
I've just started noticing this issue while driving around the neighbourhood at 30kmh on cruise control. The revs keep going up & down, with a slight surge of power.
What is very odd is that it seems to be worse when driving on a slight downhill?
I ran a scan and couldn't see any fault codes, and then I thought maybe it's a sticky EGR?
So this is what the EGR is doing at hot idle, does this look normal?
Click image to enlarge
Appreciate any tips on where to start troubleshooting, thanks--
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged
one of the guys here recommended I try in manual mode to see what happens.
so I tried with manual gears and saw this only happens at low revs, +- 1200.
Anything over this and the CC works fine, so it's probably just a combination of low speed & revs and the ECU just not able to provide the precise amount of power to match the cruise speed perfectly.
For example, at 32kmh in 3rd, the revs are low and the car surges a bit. Drop down to 2nd, and no issues as the revs are higher.--
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged
Member Since: 27 Mar 2017
Location: Blackpool
Posts: 15
Morning All,
I had this issue last night, revs at 2k doing about 75mph, just all of a sudden started to splutter, I booted it a little and it cleared it, no errors or anything.
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