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Lacks power &loads of black sooty smoke from behind engine? queery wastegate

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One of turbine high pressure rubber hose is broken. change it.
hope it helps
Marko

Posted on Oct 06, 2010

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Engine emitting black exhaust smoke and lacks power when accelerating


Black smoke means the vehicle is running really rich , do you know what that means ? lacks power when accelerating could be plugged catalytic converter . Fouled spark plugs . Leaking , fuel injectors , fuel pressure regulator leaking .Air filter clogged .Hooking up a scan tool an checking fuel trims , seeing if the computer is taking fuel away or adding .Seeing what the computer is seeing
Why black smoke coming from my car engine Troubleshooting 1 Must Watch

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Black plugs and black smoke coming from my mg tf 2002 convertible


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Mar 15, 2013 | Cars & Trucks

1 Answer

I have a 98 suburban 6.5 turbo diesel it has an intermittent issue of lack of power and lots of black smoke engine and turbo have been rebuilt a new diesel pump just installed as fault codes came up with...


replace the boost sensor its about $60 that will clear the PO236 codes (i beleive that was the code)
Duralast part # is su129 and has a lifetime warranty. located under the "turbo power" engine cover if you havent removed that yet take it off and leave it off reduces heat
sounds like your vacuum pump is bad remove it, buy a 99.5" serpentine belt and do a mechanical wastegate. adjust the spring to the boost you want. good luck

Apr 30, 2012 | 1999 Chevrolet C/K 2500

1 Answer

Just accelarates slowly from stand still


engine lack power on take off.this is possible causes peugeot cars has diesel and gasoline engine.lack of take off power could be problem with the turbocharger wastegate sticking partially closed.check wastegate linkages stuck due to rust and carbon build up.check to see if vacuum going to waste gate actuator.replace stop up air filter and fuel filter will cause power lost and check transmission fluid.low transmission fluid level will cause car to have slow take off.because transmission slipping.

Apr 08, 2011 | Peugeot 405 Cars & Trucks

2 Answers

What does trouble code P 0236 mean?


I have a 2000 3500 with a 6.5. The code 236 is - boost sensor #1 out of range. Usually it is not the sensor itself. In my case it was the vacuum pump had gone bad. No or low vacuum will cause the 236 code to set. Check for vacuum at the wastegate actuator. Disconnect the vac hose going to the diaphram actuator on the wastegate on the turbo and hook up a simple vac gauge with the engine running. Load the engine ( in gear- foot on the brake) If no vacuum check for kinked/broken vacuum line. If line is good you probably have a worn out vac pump. Rebuilt-$75-100. If you have vacuum and actuator doesnt move with change in engine loading then your wastgate/ actuator is bad- stuck or bad diaphram. My truck blew very thick black smoke even up a mild hill. After changing out the vac pump the power is back and no black smoke. Hope this helps you. Have a good one.

Sep 02, 2010 | 2000 GMC Sierra C/K3500

2 Answers

Blows black smoke when running 2600 rpm and boost goes down


I assume its the 6.0L diesel...If so sigh......double sigh.. I had one of these...triple sigh. I need a bit more clarification. How many km on the engine/vehicle. Also, you say that it blows black smoke while running at a constant speed at 2600 rpm, or while you are accelerating to 2600 rpm. Also, when you say the boost goes down, does it decrease by itself, or when the throttle is let off. The boost naturally goes down when the throttle is released (not trying to be a ****, i dont know how much you know). However, if the boost is going down by itself, while the engine is under load (its not supposed to, it should stay constant) it could be a couple of things, which "can" contribute to black smoke. If there is a leak anywhere from the turbo to the intake of the engine, it will cause the engine to get less boost, which means less air into the cylinders, which means black smoke. Check all of the connectors/tubing coming from the turbo to the intercooler, and from the intercooler to the intake manifold and see if there are any problems. The more costly problems which results in boost going down, and black smoke, deals with a problem with the wastegate on the turbo (controls how much boost is produced, and when too much is being made, it will bleed off excess pressure). So if your wastegate is malfunctioning, your boost will go down and you will get black smoke cause the engine is not getting enough air. also, around 160km...80mi, the injectors "can" start to go on the 6.0L diesels....I would check the turbo for leaks, the tubing for leaks, and the intercooler for leaks (a big rock can punch a hole in radiators and intercoolers...intercooler will be in front of the radiator). I hope this helps

May 29, 2010 | 2005 Ford F 350 Super Duty

1 Answer

Lack of power


Turbo failure is never normally intermittant so I doubt it is a turbo fault.

The wastegate relys on a signal from the ECU via the MAFS.

Mass Air Flow Sensors are very common to fail on VW TDi and this also fits in with your symptoms.

Kind regards

Lloyd

Feb 21, 2010 | 2005 Volkswagen Microbus

2 Answers

03 gli there is lag between 2500 and 3200 rpm then seems fine at lower and higher rpms =6 spd


First check for a vacuum leak under the hood.

Inspect ALL of the connections of small vacuum lines as they connect to nipples on parts.

Make sure the vacuum reservoir. A black boxy thing near the firewall does not have a hole in it and that the one way valve connected to it is functioning well.

Jul 29, 2009 | 2003 Volkswagen Jetta TDI

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