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Lots of Smoke ?!

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    #1

    Lots of Smoke ?!

    I have a F22 A4 engine and since I had it , I noticed that at about 4000 RPM and over , it smoke pretty bad . I noticed oil leaking into my spark plugs and wires so I had a new complete valve cover gasket installed and I had the O-Ring changed ( thinking the oil was causing the smoke ) . After that , the smoke decreased a little but it still smokes . I'm wondering if the piston rings or pistons could be the problem ??
    Tags: None
    #2
    It could be. Do a compression and leakdown test, and that will tell you the condition of the internals.

    Is it black, blue, or white smoke? Depending on the color, you could be burning excess fuel (black), oil (blue), or coolant (white).






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      #3
      Originally posted by deevergote View Post
      It could be. Do a compression and leakdown test, and that will tell you the condition of the internals.

      Is it black, blue, or white smoke? Depending on the color, you could be burning excess fuel (black), oil (blue), or coolant (white).


      Its black smoke and I do have a serious fuel problem but I've done everything I can think of to improve it . I can't even get 250 miles on a tank of gas .

      Comment

        #4
        In that case, you should be addressing fuel issues first.

        Is your check engine light on, by chance?






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          #5
          Great info go with it he knows his shit best of luck to you bro

          Comment

            #6
            is your car modified in any way? this info would help us help you in diagnosing a problem
            Originally posted by deevergote
            These cars will never be the best at anything, but they're pretty damn good at everything.

            92ex CB7<-SOLD 93ex CB9shiftingshift73C10

            Comment

              #7
              Originally posted by deevergote View Post
              In that case, you should be addressing fuel issues first.

              Is your check engine light on, by chance?


              Not now , it came on once : I changed to O2 Sensor and it went off . For the fuel issues , so far I've changed : spark plugs , wires , distributor cap , rotor , air intake and filter , and headers ( old ones were leaking ) and gas mileage didn't change at all . On the highway I can get about 300 miles .

              Comment

                #8
                Originally posted by mtnbikaah View Post
                is your car modified in any way? this info would help us help you in diagnosing a problem


                Not really , I just have headers and a short ram intake on it .

                Comment

                  #9
                  Change your fuel filter.

                  Adjust your ignition timing.

                  That new o2 sensor... lemme guess... Bosch?






                  Comment

                    #10
                    Originally posted by deevergote View Post
                    Change your fuel filter.

                    Adjust your ignition timing.

                    That new o2 sensor... lemme guess... Bosch?

                    That was my next move ( fuel filter and pump ) . But I'm not sure what kind of sensor it is , the guy who changed my headers had it lying around .
                    And ignition timing , I know I need to change the idle air control valve .

                    Comment

                      #11
                      The pump isn't necessary, though never a bad thing. it's a bit of a bitch to change. Personally, I wouldn't until it fails.

                      You only have one header on an inline four. Look at the sensor and see what it is. If it's a Bosch sensor, change it. Bosch is what most autoparts stores will give you, and what most shops that work on domestics or european cars will give you. That's one downside to not doing your own work.
                      If it's a Bosch sensor, replace it with Denso or NTK. Bosch sensors do not work properly.






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                        #12
                        It's true, Bosch O2 sensor did not work on my car at all.

                        The OP has not mention about cleaning the injectors, yet. Bad spray patterns from injectors will affect the mileage.
                        A&P-IA

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                          #13
                          Does it happen when it first starts up? If so I had the same problem. Oily plug wires and plugs. Once I changed the VC gasket and plugs it still smoked a week when I first started it up. Turned out to be excess oil burning off from the spark plug chambers or something like that. Now a week later and no smoke. Hope this helps.

                          Comment

                            #14
                            theres still 4 more o rings that are on the underside of the camshaft. those are prong to leaking inside the spark plug wells

                            Comment

                              #15
                              Originally posted by Theos92VR4 View Post
                              Does it happen when it first starts up? If so I had the same problem. Oily plug wires and plugs. Once I changed the VC gasket and plugs it still smoked a week when I first started it up. Turned out to be excess oil burning off from the spark plug chambers or something like that. Now a week later and no smoke. Hope this helps.


                              not on start up , but if i have the car on in neutral and i rev it up , it'll smoke from under the hood .

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