car wont idle

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  • nickmpower
    Member
    • Feb 2004
    • 82

    #1

    car wont idle

    well i just got done replacing the water temp sender and i had to disconnect a few things and take off the intake manifold and now the car wont idle. It just starts up and dies. If i give it some gas it seems to rev to about 3000rpm and stay there for a second. what could be wrong?
  • nickmpower
    Member
    • Feb 2004
    • 82

    #2
    also i somehow hit the brake fluid reservor and some fluid leaked out. should the car be ok to drive?

    Comment

    • Jordan
      R3V OG
      • Oct 2003
      • 12907

      #3
      Parts car
      Tenured Automotive Service Professional - Avid BMW Enthusiast

      Vapor Honing & E30 ABS Pump Refurbishment Service
      https://mtechniqueabs.com/

      Comment

      • randomtask37
        No R3VLimiter
        • Oct 2003
        • 3154

        #4
        if u disconnected some things from the intake manifold, just look around closely and see if u havnt connected a vacuum hose or mabye not connected it enough, or to the correct place.

        about the fluid, as long as it wasnt much u should be fine... but fill it up when u get a chance.
        98 M3/4/5

        Comment

        • nickmpower
          Member
          • Feb 2004
          • 82

          #5
          Originally posted by Jordan
          Parts car
          its not the cars fault its mine

          Comment

          • chesster6969
            Grease Monkey
            • Oct 2003
            • 321

            #6
            How about the temp sender connections? Maybe you switched between both of them?

            Comment

            • nickmpower
              Member
              • Feb 2004
              • 82

              #7
              i pretty much know its the idle control valve because i unpluged it and it did basiclly the same thing. It idles better now but the rpms still surge to like 2500rpm when i press the gas. My dad just baught some spray degreaser and im gunna try and spray that in there to clean it.

              Comment

              • nickmpower
                Member
                • Feb 2004
                • 82

                #8
                it didnt work to spray it out...now im thinking maybe its the intake manifold gasket??? it looked like it might have had a small tear in it but would it make that much of a difference?

                i found this on the dinan web site

                As many 850 owners are already aware, intake manifold gasket leakage typically results in a rough idle and fuel smell.

                that sounds like what my problem is

                Comment

                • patrick.s
                  Member
                  • Mar 2004
                  • 45

                  #9
                  what engine?

                  Comment

                  • nickmpower
                    Member
                    • Feb 2004
                    • 82

                    #10
                    m42

                    Comment

                    • patrick.s
                      Member
                      • Mar 2004
                      • 45

                      #11
                      i am more familiar with 6cylinder engimes but i think you should look for vacuum leaks. go through all operations that you did, also dont think that intake gasket makes that big leak that engine stalls

                      Comment

                      • Kondour
                        Wrencher
                        • Dec 2003
                        • 243

                        #12
                        I had same problem when i first took the intake manifold off. There is a breather tube that goes from the crank case up to the middle of the intake manifold. If you dont have a washer and O-Ring on the bottom of the tube and a O-Ring on the top of the tube, your car wont idle or even run. I experienced this exactley how you explained it. I would look at that as my first location. Good Luck

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                        • nickmpower
                          Member
                          • Feb 2004
                          • 82

                          #13
                          well i took the manifold of and put some gasket sealer in and it seems to run pretty good now

                          Comment

                          • nickmpower
                            Member
                            • Feb 2004
                            • 82

                            #14
                            ok the car still runs rough when first started and at about 3k rmp while driving it vibrates! only when its not warmed up and it also smells kinda funny too...any more ideas?

                            Comment

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