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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black
5.0 misfire on 1 bank with no obvious cause

Hi all,

Had a mare last week with the AB. 85 miles from home it started misfiring - "restricted performance" message up on the dash that wouldn't go away after turning off and waiting. Very lumpy at idle, whenever I drove it there was next to no power. Got recovered back home after 2 AA chaps couldn't fix it by the road side. Took 12 hours to be recovered - got home at 6 am on Tuesday - great fun Yawn Error codes they managed to read said misfire on cylinders 1, 3, 5 and 7 which, with the bonnet open stood in front of the car, is the bank on the left hand side IIRC.

Took the car into my local 4x4 specialist who I've used before with good results - very good rep. They couldn't find any issues. Coil packs fine, injectors fine, plugs fine, wiring fine. Didn't misfire for them once. Nothing to fix as far as they're concerned - and I do trust them although everyone has an off day.

The car was driving perfectly fine before it happened. I brimmed it with fuel about 2 minutes before it started happening, not sure if that's relevant Shocked I did double check the fuel cap was on properly Smile

This happened to anyone else?

Post #534798 Fri Sep 08 2017 3:59pm
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geoffsnook



Member Since: 19 Nov 2016
Location: cardiff
Posts: 652

Wales 2005 Range Rover Sport Supercharged HSE Java Black

Maybe dodgy fuel from petrol station Thumbs Up

Post #534812 Fri Sep 08 2017 7:07pm
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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black

If it's that simple I'll be pleasantly surprised, but slightly worried every time I fill up! Is crap fuel something that could cause an issue with these engines?

Post #534823 Fri Sep 08 2017 7:53pm
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phillh



Member Since: 09 Oct 2016
Location: Hertfordshire
Posts: 141

United Kingdom 2005 Range Rover Sport TDV6 HSE Zermatt Silver

Could you have put diesel in by mistake?

Post #534833 Fri Sep 08 2017 9:30pm
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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black

Checked the receipt at the time as I was worried about that. Unleaded Thumbs Up about £70 quid worth. Used about 15 miles of it before recovery. Apparently it's running just fine now.

Post #534836 Fri Sep 08 2017 9:47pm
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geoffsnook



Member Since: 19 Nov 2016
Location: cardiff
Posts: 652

Wales 2005 Range Rover Sport Supercharged HSE Java Black

Garages have been known to have had bad petrol/contaminated with water or similar Thumbs Up

Post #534854 Sat Sep 09 2017 9:00am
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Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 1453

England 2005 Range Rover Sport TDV6 HSE Rimini Red

bizarre

possibly wiring fault to that bank of coils. check black and red wires at joint.


But are you sure they are on the same bank ?

Post #534857 Sat Sep 09 2017 9:30am
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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black

Apparently the wiring is fine. As far as I know the left bank is 1, 3, 5 and 7. AA chap swapped a couple of coil packs to the right hand bank to see if the fault followed thise coils, which it didn't. Voltage and resistance was fine to all coils as well. He forced a misfire on the right bank and IIRC the fault code showed that bank had even cylinder numbers.

Just got the car back. As the indie said, it is running perfectly. It's booked in for brakes to be looked at next week. Wondering if it's worth asking them to do any precautionary bits and bobs on it while it's there, related to this issue. Not sure what there would be for them to do, though.

I guess I'll be filling it up with v-power only from now on.

Post #534861 Sat Sep 09 2017 10:18am
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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black

The saga continues. Car been ok on short journeys but took it to the office yesterday and after 40 miles while idle waiting at a roundabout it started either misfiring or something that felt exactly the same. Juddering and bouncing revs. Gave it a rev, carried on and made it to the office with a bit more juddering. Made it home as well but was quite nervous it was gonna clap out again. No error messages this time, either!

Indie says if they don't see the symptoms or fault codes they're just guessing. It never plays up on short journeys so never happens in front of them. They had a good look at injectors, wiring, coil packs, plugs etc last time and couldn't find a thing wrong.

I know there's something up and I'm losing confidence in the car, as is the wife. I'm willing to spend money on fixing it but I can't even get a diagnosis right now. I've seriously debated taking half a day off work and driving round until it happens, then taking it straight to the garage. It's a lottery though.

What would you do?

Post #536132 Thu Sep 21 2017 10:07pm
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Col



Member Since: 02 Sep 2012
Location: Hawkes Bay NZ
Posts: 1450

New Zealand 2013 Range Rover Sport Supercharged Autobiography Santorini Black

Could always treat yourself to a GAP Diag. tool, worth there weight in gold anyway and carry it with you, then when it does it run your own diag. test and check for any fault codes. Would of thought there would be more logged faults though.

Just a suggestion.

Cheers
Col

Post #536137 Thu Sep 21 2017 11:35pm
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tom0311



Member Since: 01 Apr 2016
Location: witney
Posts: 198

United Kingdom 2009 Range Rover Sport Supercharged Autobiography Santorini Black

Funny you say that Col I was looking at them last night. Standard IID tool good enough or do I need to spend 5 times as much on the 'pro' version?

Cheers

Tom

Post #536145 Fri Sep 22 2017 5:58am
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Col



Member Since: 02 Sep 2012
Location: Hawkes Bay NZ
Posts: 1450

New Zealand 2013 Range Rover Sport Supercharged Autobiography Santorini Black

No the standard IID BT version is fine. Give Dan at Duckworth's a call I think they were doing special offer a short while ago, still around the £400.00 mark I think though.

Cheers
Col

Post #536146 Fri Sep 22 2017 6:16am
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SRE



Member Since: 16 Jan 2010
Location: Alicante Prov Spain + Hampshire UK
Posts: 1990

2011 Range Rover Sport 3.0 TDV6 HSE Santorini Black

IID BT every time, fantastic bit of kit to keep in the car, also worth looking at the for sale section on here and the Disco forum, along with group buys In Spain - Santorini Black 2011 HSE
In UK - Not saying, but its NOT a Muddy Milk Float.
Gone - Several Lode Lane vehicles
- Beta User

Post #536152 Fri Sep 22 2017 8:29am
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SRE



Member Since: 16 Jan 2010
Location: Alicante Prov Spain + Hampshire UK
Posts: 1990

2011 Range Rover Sport 3.0 TDV6 HSE Santorini Black

http://www.disco4.com/forum/topic161417.html?highlight=iid+tool In Spain - Santorini Black 2011 HSE
In UK - Not saying, but its NOT a Muddy Milk Float.
Gone - Several Lode Lane vehicles
- Beta User

Post #536153 Fri Sep 22 2017 8:32am
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Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 1453

England 2005 Range Rover Sport TDV6 HSE Rimini Red

with it you will be able to see Live values to notice which cylinder or bank is causing the problem before a fault code is logged.

This assumes it reports a number which matches the LR number.

You are unlikely to loose money on an I D


Shortly after is has messed around, you could remove all the spark plugs and see if 1 is a different colour or wet with fuel or whatever. This would help pinpoint a cylinder.

Rear plugs are probably difficult to get at.

See if you have the tools and have a go at removing an easy one to gain knowledge and tools required.

Post #536162 Fri Sep 22 2017 10:54am
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