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S40 Engine B4204T3 Blue smoke when idle

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

jumbicat
Posts: 27
Joined: Sun Sep 02, 2018 9:05 am
Year and Model: 2003 S40 2004 S60
Location: Lewisville, Tx

Re: S40 Engine B4204T3 Blue smoke when idle

Post by jumbicat »

Found Robert DIY on youtube. "How to tell if a turbocharger is bad" I suspect like most of you the problem is going to be the turbo. Feeling better about this project. Next step is to see if repair kits are available. Let me think....Last time I bought Volvo parts was from....IPD.
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alschnertz
Posts: 643
Joined: Fri Apr 29, 2011 9:25 am
Year and Model: 1995 854T
Location: Connecticut
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Re: S40 Engine B4204T3 Blue smoke when idle

Post by alschnertz »

This is not a knock on IPD, but I'm in CT and have had good luck with FCP Euro and eEuroparts.

I've no connection to either, but do know that both are big supporters of Volvo hobbyists.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE
jumbicat
Posts: 27
Joined: Sun Sep 02, 2018 9:05 am
Year and Model: 2003 S40 2004 S60
Location: Lewisville, Tx

Re: S40 Engine B4204T3 Blue smoke when idle

Post by jumbicat »

I'm wondering why the repair kits I've seen don't have the exhaust gasket. Guess that's a separate kit?
jumbicat
Posts: 27
Joined: Sun Sep 02, 2018 9:05 am
Year and Model: 2003 S40 2004 S60
Location: Lewisville, Tx

Re: S40 Engine B4204T3 Blue smoke when idle

Post by jumbicat »

I stopped before the job was 100% committed as I didn't want to chase a hare down the wrong rabbit hole. Inspecting the hose from radiator, it has a lot of oil in it and at the turbocharger. Turbo charger could be fine? Problem with the radiator?
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alschnertz
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Joined: Fri Apr 29, 2011 9:25 am
Year and Model: 1995 854T
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Re: S40 Engine B4204T3 Blue smoke when idle

Post by alschnertz »

Getting confused again.
You pulled a radiator hose and found oil?
Or you pulled the intercooler hose and found oil?

Also, have you inspected the throttle body? Is that all oily?
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE
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RickHaleParker
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Re: S40 Engine B4204T3 Blue smoke when idle

Post by RickHaleParker »

Sound like he is confused in terms of the direction the air flows. The Air flows from the turbo to the radiator where it get cooled down, then to the engine. If he has oil in the turbo, the only possible source of that oil is the turbo seals. Leaky turbo seals would contaminate everything from the turbo to the exhaust pipe with oil.

Look at the hose/pipe from turbo to radiator, oil would need to flow against the air flow and uphill to get from the radiator to the turbo. That is not going to happen. Any oil in that hose/pipe would be from the turbo. If I was in jumbicat's shoes, I would head to a Pick-in-Pull for another turbo. ~$65.00 around here.
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD.
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
jumbicat
Posts: 27
Joined: Sun Sep 02, 2018 9:05 am
Year and Model: 2003 S40 2004 S60
Location: Lewisville, Tx

Re: S40 Engine B4204T3 Blue smoke when idle

Post by jumbicat »

Just trying to eliminate all possibilities before pulling the turbo. If I pull it, and find its just the seal, I'd rather rebuild it with a kit than buy a used one with unknown history. And no. The radiator hose does not have oil in it. The hose going to the radiator where the intercooler is, does. Not so much at the radiator side but at the turbo end, there's obvious oil collection. So I'm to understand, there should be no oil anywhere in the intercooler pipe?
difflock54
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Re: S40 Engine B4204T3 Blue smoke when idle

Post by difflock54 »

The answer to your question is in RickHaleParkers last post above.
Oil at the turbo end is evidence of turbo seal failure.
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alschnertz
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Re: S40 Engine B4204T3 Blue smoke when idle

Post by alschnertz »

I think a slight amount of oil in the hose at the turbocharger is acceptable.
Soaked is not good.
OP may want to pull the hose at the bottom of the intercooler and see how much oil and/or condensation drips out.

I'd also inspect the throttle body for oil contamination.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE
jumbicat
Posts: 27
Joined: Sun Sep 02, 2018 9:05 am
Year and Model: 2003 S40 2004 S60
Location: Lewisville, Tx

Re: S40 Engine B4204T3 Blue smoke when idle

Post by jumbicat »

Is there a easy way to get the bolt off at the 8 o'clock position? It's the only one left. From the bottom? Do I need to take something off to get to it? It's a tight fit. Who ever installed the rubber hose put the tap end facing the drivers mirror. Ended up using a cutting clamp off. Wasn't very nice of them.
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