Question about 2000 Volvo C70

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I have a 2000 C70 Turbo Volvo and black smoke is coming out of exhaust pipe and engine have low no power

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Black smoke describes poor engine piston rings or worn valve seals in the head cylinders
that will reduce power as well
check your engines oil level daily if driving this way

Posted on Mar 27, 2011

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Posted on Jan 02, 2017

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SOURCE: My C70 Volvo 2000, got

Black smoke from exhaust of car comes out while you are driving indicates that the car air fuel/ratio is too rich, when a car air/fuel ratio is too rich, more gas is being burned from a cars engine combustion chambers.
The engine is consuming too much gas, the problem relates to fuel injection.The fuel is running too rich or too lean.Get the o2 sensors checked, get the fuel filter checked, get the IAC( idle air control valve) checked.Also get the throttle body checked.The IAC valve located on throttle body.Clean both IAC and throttle body with a crab or throttle cleaner.IT can be bought from local auto part store.The O2 sensors located before and after catalytic converter.Replace both, the pre and pro O2 sensors before and after catalytic converter.Also see if catalytic converter is clogged and worn out, then it has to be replaced.Also check the fuel injectors, if they are cracked and leaking, this results in black smoke. --------------- This are the possibilities, that can cause black smoke and no power to engine.First get the throttle body , IAC valve and O2 sensors cleaned, then see, if the problem still occurs, then go for catalytic converter cleaning and injector checking.If all checked or replaced, but still the same problem, then the spark plugs and coil pack are to be checked.But its rare that spark plugs and coil pack causing black smoke or no power to engine,--------------- This should help.Thanks.Keep updated.Helpmech.

Posted on Mar 27, 2011

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2 Answers

Exhaust smoke definitely not steam. Someone opined that it may be related to the turbo/exhaust system. What do you think?


A worn turbo or broken would create smoke. Blue or Gray smoke is either worn rings or a clogged PCV. White smoke is from foreign fluid entering the engine. Typically indicative of a head gasket leak. Black smoke is Leaking injectors or an ignition problem or an issue with the turbo.
If you are experiencing a loss in power then you most likely have a worn turbo bearing.

Sep 16, 2011 | Volvo S60 Cars & Trucks

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I have an Audi A41.9 TDI 1997 and it is coughing up black smoke which comes out of the exhaust pipe. On the motoway, while trying to overtake a car a puff of black smoke came out of the exhaust pipe and...


There are several possible faults:
1. Pressure sensor is faulty (it might come up on diagnostics as if it was working fine, but it shows the wrong manifold pressure).
2. Either one of the boost pipes/hoses or the intercooler have a hole somewhere.
3. Turbo's actuator is stuck.
4. Vacuum hose is damaged which goes in to the turbo actuator.
5. Control valve for the turbo actuator is not working properly.

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Milage between cambelts?


Mileage on timing belt, depends on year ? make (volvo) model (c70) and engine size?. heres a couple of mileage readings,the 1998 c70 with a 2.3 turbo engine is due every 70,000 miles. the 1999 -2001 c70 with 2.3 turbo is due every 105,000 miles. the 2002- 2004 c70 with the 2.3 engine is also at 105,000. the 1998 c70 with the 2.4 engine is due every 70,000 miles. the 1999-2001 c70 with the 2.4 engine is due every 105,000 miles. the 2002- 2004 c70 with the 2.4 engine is due every 105,000 miles. god luck hope this helps.

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Does my 2002 S80 Volvo have turbo or not?


is this a t6? if so yes. turbocharged engines have more horsepower than naturally asprirated engines, a turbo charger works like a supercharger by forcing more air into the intake, while a super charger is usually belt driven a turbocharger is exhaust driven, it will be located in the exhaust pipe or exhaust manifold and is turned by exhaust gases passing thu with the opposite side connected to the air intake pipeing, some have the intake air piped thru a intercooler which is mounted in front of the radiator(cooler air is more horsepower)
type 2002 s80 volvo in your search bar and you can find a ton of info

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1 Answer

Power loss and black smoke?


I had a similar issue to this after I got in a VERY small fender bender (literally) in an 87 Turbo Supra. In my case, my pasenger fender got pushed in JUST enough to crack a charge pipe and cause a boost leak.

Basically, what was happening was the turbo would spool and build boost, the mass fair flow sensor would read all this air coming in and tell the ECU to dial up the the appropriate amount of fuel. When the air reached the cracks in the charge pipe, it would escape out of them. Thus there was a much lower air-to-fuel ratio, causing less fuel to combust, which lead to power loss and black smoke out of the exhaust.

My guess is either an oxygen sensor, or more likely a boost leak.

Good luck mate.

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2000 Volvo V70 2.5 TDI excessive black exhaust smoke


black smoke( too much gas)
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Thick white smoke coming from exhaust


White smoke usually associated with water or moisture. it doesn't take too much water to produce white smoke. check

1. cloudy oil under oil cap
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Volvo s60 deisel blowing sotty smoke


There are a few things that can cause sooty smoke. Check the are filter and the turbo. If its the turbo then the exhaust pipe after the turbo will have oil in it. If you can give me more info I might be able to help more if this doesn't do it for you.

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