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1999 audi a6 shakes, in ocations violently. Raw fuel smell. Loss of power. Burnt oil smell. idles poorly

1999 audi a6 middle cylinders on both sides are half way filled with oil when i took out the coils. the rest are all soaked. When i start the car and its cold it idles fine, but when it heats up it starts to shake badly and the acceleration sounds like a diesel. Also smells like raw fuel out the vents and burnt oil. The check engine flashes when this happens. then sometimes the engine picks up again and runs fine. it feels like it sends out wrong amount of gas or somthing like that. could it be all that oil in the cylinders?

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  • Cars & Trucks Master
  • 3,187 Answers

If you had the ecu read it would probably say egr code. also a number of other codes to do with injectors and co2 sensor. you need to clean out the egr and clean out the air vent pipe from the sump to the top. also clean out the idle valve on the in take. also the breather pipes. you may even need to change the air filter. and when was the fuel filter changed. an oil change a filter change would not go a miss if it has not been done in awhile. routing maintenance will stop this happening again.

Posted on Feb 07, 2014

Testimonial: "Will do everything you said and see how it goes. Ill comment back thanks"

  •  Russ Hill
    Russ Hill Feb 07, 2014

    also forgot to mention were is the oil... was it in with the spark plugs ? if it is check the head gasket one for the cam covers. if broken replace.

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wireguy212
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SOURCE: 1999 Buick Regal has two distinct problems. 1.

Sounds like you have a blown headgasket,check the coolant in the radiator and if you find oil in it you do need a headgasket.

Posted on Dec 14, 2009

  • 1374 Answers

SOURCE: Cold start-extremely rough idle-Shakes,smell fuel

Black smoke means buring rich. Have the vehicle's ECU scanned for codes and do the repair the codes describe. I'm gonna take a stab in the dark and say Mass Air Flow Sensor.(MAF)

Posted on May 07, 2010

  • 3 Answers

SOURCE: acts like its running out of gas, raw gas smell

Sounds like it could be a leak under the hood. Have someone cycle the key on and off while you look around the engine compartment for a leak. Paying close attention to the fuel rails and lines. If you don't find any leaks by cycling the key start the engine and look. Be careful gas leaks in the engine compartment can be dangerous.

Posted on Apr 06, 2013

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