I have steam from filler cap when removed it sound like tractor and puffs of steam have no idea
2008 Vauxhall Combo 1.7cdti

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Monte
Driver
1 points

Problem added: Nov 7, 2020 (8 months ago)
I have large amount of steam coming from my oil filler cap when removed and sound s very rough

Car details
Car: Vauxhall Combo
Variant: 1.7cdti
Model Year: 2008
Replies and Fixes
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whittingehame
Legend
20,172 points

Nov 7, 2020 (8 months ago)
Sounds ominous , at least back pressure due to engine wear . Check for coolant loss also but combined with engine knock really needs checked out .
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Monte
Driver
1 points

Nov 7, 2020 (8 months ago)
No coolant loss been told could be stem valves or piston rings worried about price to fix as only paid for head gasket replacement few months ago
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bustedknuckles
Legend
2,304 points

Nov 7, 2020 (8 months ago)
Check your engine breather is not carboned up ,causing back pressure ,and cylinder leakage test should show up where the wear is .depending on mileage,should really have had stem seals when gasket was done ,decoke of valves and pressure test of the cylinder head.
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whittingehame
Legend
20,172 points

Nov 7, 2020 (8 months ago) Edited on Nov 7, 2020 (8 months ago)
Whoever did the head gasket should have checked the valve stem oil seals . Could be cracked head also if it was not pressure tested and checked / skimmed . Other causes like problems with injectors /diesel knock but really hard to advise without being there .

Was replying when received a phone call and delayed post , hence similar reply to Bustedknuckles
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Monte
Driver
1 points

Nov 7, 2020 (8 months ago)
Just been told could be injector seals due to the pressure the vapour is being lidded out
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bustedknuckles
Legend
2,304 points

Nov 7, 2020 (8 months ago)
Does it smell like fuel ,the gasses emitted,would be the question? Not just steam then.
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Monte
Driver
1 points

Nov 7, 2020 (8 months ago)
There’s no obvious smell of anything
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bustedknuckles
Legend
2,304 points

Nov 7, 2020 (8 months ago)
You need to do the checks suggested before moving forward, cylinder leakage and check breather first
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