hesitation??

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  • 09june29
    Noobie
    • Apr 2012
    • 38
    #1

    hesitation??

    hello i am in need of help with my 87 325e its the 2.7 and it started acting up a few days ago and keeps doing it... ok when i start my car in the morning it runs fine and seems pretty quick all of it power and once the temp gauge moves a little or gets a lil warmer it starts to hesitate when im 75%-!00% throttle doesnt hurt my mpg or driveing ability just get mad cuz it does this also its a noticable power loss no get up like its suppose to it sometimes idles funny and bounces from 600-900 when its warm also .. anyone have any suggestions ?
    Tags: None
    • jlevie
      R3V OG
      • Nov 2006
      • 13530
      #2
      The first thing that comes to mind are intake leaks. They can only really be found by having a smoke test run.
      Last edited by jlevie; 04-25-2012, 05:09 PM.
      The car makes it possible, but the driver makes it happen.
      Jim Levie, Huntsville, AL

        Comment

        • 09june29
          Noobie
          • Apr 2012
          • 38
          #3
          how can i do this? sorry nvr done it befor... well it started doing this after a dry rotted fuel line was leaking and i fixed that but has done it since

            Comment

            • 09june29
              Noobie
              • Apr 2012
              • 38
              #4
              smoke test?

                Comment

                • hamilton325i
                  Member
                  • Sep 2011
                  • 83
                  #5
                  You need to track down a shop with a smoke machine capable of diagnosing vacuum leaks (even tiny) on your particular vehicle. BMW dealers, in theory, should be your best bet.

                    Comment

                    • dnguyen1963
                      R3VLimited
                      • Nov 2011
                      • 2648
                      #6
                      search www.scottykilmer.com for a cheap cigar smoke test if you cannot locate a decent shop.

                        Comment

                        • 09june29
                          Noobie
                          • Apr 2012
                          • 38
                          #7
                          i dont have a bmw dealer nearby

                            Comment

                            • MrNatural
                              Wrencher
                              • Apr 2008
                              • 237
                              #8
                              check your cap and rotor...
                              sigpic

                                Comment

                                • 09june29
                                  Noobie
                                  • Apr 2012
                                  • 38
                                  #9
                                  Good idea anyone have good idea how to clean a cap n maybe the rotor

                                    Comment

                                    • hamilton325i
                                      Member
                                      • Sep 2011
                                      • 83
                                      #10
                                      The BEST way is to replace them with new components. You can lightly sand the posts on the cap and edge of the rotor to remove corrosion but isn't a guaranteed fix.

                                        Comment

                                        • 09june29
                                          Noobie
                                          • Apr 2012
                                          • 38
                                          #11
                                          Thanks guys I'll just replace them and fuel filter and I'm thinking the coolant temp sensor could be the problem could anyone post a pic of what coolant sensor I'd need to change lol

                                            Comment

                                            • hamilton325i
                                              Member
                                              • Sep 2011
                                              • 83
                                              #12
                                              I wouldn't just start throwing parts at it. Try pulling apart the cap and rotor as mentioned and checking for corrosion. if sanding them down a bit makes a difference then you may be on to something. Otherwise you may just be wasting money and no closer to your goal. Just my 2 cents.

                                                Comment

                                                • 09june29
                                                  Noobie
                                                  • Apr 2012
                                                  • 38
                                                  #13
                                                  Yea thnx man I guess it's worth a shot

                                                    Comment

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