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Volvo 850 smell of gases in the passenger compartment

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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nedqlkow
Posts: 12
Joined: 23 January 2023
Year and Model: S60 2005
Location: Bulgaria
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Volvo 850 smell of gases in the passenger compartment

Post by nedqlkow »

Hello,
First of all, the car is a Volvo 850 (LS) 2.5 10V (140 hp.) with automatic transmission and installed gas system.

For some time we have been struggling with an extremely unpleasant problem, namely the smell of gases in the passenger compartment.
A problem that is probably not very significant at first glance, but it is extremely unpleasant.
To fix the problem, we started with several steps as follows:
New fuel pump and hose inspection.
New exhaust manifold
PCV revision that finds the system working. The glove test was also done, also with a good result.

However, the problem remains. Could anyone give me any pointers on where to continue looking?

dikidera
Posts: 1307
Joined: 15 August 2022
Year and Model: S60 2005
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Post by dikidera »

Да не е нещо капачката на резервоара. Да се е разхлабила или уплътнението и в последствие от там да избиват изпаренията.

Говоря ти под седалките нали.

nedqlkow
Posts: 12
Joined: 23 January 2023
Year and Model: S60 2005
Location: Bulgaria
Has thanked: 1 time

Post by nedqlkow »

dikidera wrote: 07 Jun 2023, 07:49 Да не е нещо капачката на резервоара. Да се е разхлабила или уплътнението и в последствие от там да избиват изпаренията.

Говоря ти под седалките нали.
Здрасти, не очаквах да засека българин тук.
Миризмата е по-скоро не на гориво(бензин), а на изпаренията от изпускателната система, затова се насочихме към смяната на изпускателния колектор, проверка за течове, проверка на PCV системата и така нататък.

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