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ivan1566



Member Since: 15 Feb 2019
Location: Dubai
Posts: 19

United Arab Emirates 2012 Range Rover Autobiography Black 5.0 SC V8 Santorini Black
4.2 SC knocking and misfire on #5

Hoping some of you knowledgeable guys can help.
Recently had the head gaskets replaced along with machining of head and valve seats, however I am now getting oil in the coolant header tank, knocking from the front of the engine and a misfire on cylinder 5 leading to reduced engine performance warning.
Other than the obvious question of whether the heads were done properly, which I would never know unless I give it them back (fear of more charges) any ideas as what could be the causes???

For info
I've changed the ignitors and plugs around and it still misfires on #5
The knocking sounds like it could be around the front middle of the engine near the supercharger

Thanks

Post #562976 29th Jul 2020 10:14am
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dingg1



Member Since: 29 Jun 2013
Location: PORTUGAL
Posts: 1263

2007 Range Rover Vogue SE 4.2 SC V8 Stornoway Grey

Surely take it back to whoever did the work.

Or am I missing something?

Post #562987 29th Jul 2020 12:10pm
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ivan1566



Member Since: 15 Feb 2019
Location: Dubai
Posts: 19

United Arab Emirates 2012 Range Rover Autobiography Black 5.0 SC V8 Santorini Black

Just about to, but wanted to have some idea as to Help enforce the fixing of the fault under warranty

Post #562988 29th Jul 2020 12:15pm
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dingg1



Member Since: 29 Jun 2013
Location: PORTUGAL
Posts: 1263

2007 Range Rover Vogue SE 4.2 SC V8 Stornoway Grey

Well if it only started knocking after they did the head gaskets it's down to them unless you've put a load of miles on it since then?

But be prepared for a fight ime.

I had to go to trading standards and small claims court against a BMW independent in the past and won the case but it took a while to get sorted...

Post #562990 29th Jul 2020 12:44pm
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