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850 NA Odd Smell after cruising or hard acceleration

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MadeInJapan
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Year and Model: '98 S70 T5 '07S40T5
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Post by MadeInJapan »

Just for kicks, pull up the carpet under the driver's foot well and see if it's damp. It came to me when reading a post on another thread that you could have some stank radiator fluid which is leaking from your heater core- this would explain a few things you're experiencing- not a hard repair (not expensive either), and maybe not at all- but just check to make sure.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

850FLA
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Post by 850FLA »

MadeInJapan wrote:Just for kicks, pull up the carpet under the driver's foot well and see if it's damp. It came to me when reading a post on another thread that you could have some stank radiator fluid which is leaking from your heater core- this would explain a few things you're experiencing- not a hard repair (not expensive either), and maybe not at all- but just check to make sure.
Pretty dry there. It normally comes in when I have the windows or moon roof cracked...sort of a back draft odor so it appears.

tailor
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Post by tailor »

it normally comes in when I have the windows or moon roof cracked...sort of a back draft odor so it appears.
It sounds like you are creating a through draft and the smell maybe coming from your A/c or evaporator and you are smelling mould. A clogged evaporator or dirty air cabin filter could give you odd smells.
1994 850 Auto Turbo wagon 306000km (Sold)
2004 XC90 AWD 188000km

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wheelsup
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Post by wheelsup »

My car also has a moldy/mildewy smell to it but it is different than the oil smell. The oil smell has a chemical smell to it.

850NA, also check your oil filler cap seal. I just replaced mine. The old seal was extremely tough to the touch. The new seal cost $0.75 from Car Quest/World Pak and that should reduce the amount of oil accumulating on top of my engine. I did have the PCV system changed out but oil still accumulated due to the bad seal (at least hopefully, I will know after running it for a few weeks).
1995 850 GLT Wagon w/ 200,000 miles

villagepc
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Post by villagepc »

ditto on the mysterious odor.... it's kinda growing on me now, like mold... I thought it was just inherent to the car... I've had a few benz's, bmw's and audi's / vw's that had their own brand of odor - thought it was vehicular pheromones.
will run through the things that are mentioned here and report back... i *know* my PCV is honked (puddles on top o'the head)...
I did recall smelling that same smell on the 855 turbo wagon that I've been harvesting spare parts from... it was when I was trying to yank the turbo off and I started removing the coolant lines... hmm..
____________________________________________
1998 V70 T5M R Clone | IPD / ARD Stage 3
2008 S80 3.2 - not too shabby
1991 740 Turbo - 2.5" lift, 100% madness

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