HELP... Car won't start ... 91 325ix

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  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #16
    Originally posted by SpecM
    not on an e30, they crank and start with or without the clutch switch
    I beg to differ. Unless the clutch safety switch has been bypassed (shorted) the car won't crank. The circuit involved is the same as the Park/Neutral safety on a car with an automatic transmission. And if the switch has been shorted, to allow the car to be started w/o depressing the clutch, cruise control will be disabled (unless its neutral safety has also been bypassed).
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • SpecM
      R3V Elite
      • Oct 2005
      • 4531

      #17
      Originally posted by jlevie
      I beg to differ. Unless the clutch safety switch has been bypassed (shorted) the car won't crank. The circuit involved is the same as the Park/Neutral safety on a car with an automatic transmission. And if the switch has been shorted, to allow the car to be started w/o depressing the clutch, cruise control will be disabled (unless its neutral safety has also been bypassed).
      yes, on most cars that is true

      but on an e30, the only funtion of the clutch switch is to disable the cruise control when it is depressed. It was no bearing no cranking.
      1989 cirrisblau-metallic 325i

      Comment

      • E30nate
        E30 Enthusiast
        • Oct 2007
        • 1050

        #18
        ^^ hes right. bmw's didnt have clutch switches until 96 because obdII required it. pre 96 cars would only have one if it was equipped with cruise.

        $780 seems rather high to replace the two sensors. figure $100 for each sensor, and hour of diag which should be around $90, and an hour to replace both sensors @ about $90 an hour, should be somewhere around $500 at most.

        Comment

        • EA8
          Grease Monkey
          • Oct 2008
          • 328

          #19
          Originally posted by E30nate
          ^^ hes right. bmw's didnt have clutch switches until 96 because obdII required it. pre 96 cars would only have one if it was equipped with cruise.

          $780 seems rather high to replace the two sensors. figure $100 for each sensor, and hour of diag which should be around $90, and an hour to replace both sensors @ about $90 an hour, should be somewhere around $500 at most.

          thats what I ended up figuring out. when I asked them what were the prices for the sensor, this is what i got - $250 for CPS & $110 for clutch safety switch. Add to that a $100 diagnostic fee to figure out what the problem was to start with and i guess it turns out to be close enough. As you can see, i am getting ripped off on the parts and what pisses me off even more is that I would love to do the work myself, not to save money (althought that would be great right now), but more to learn about these things and be able to get that self satisfaction of doing it on my own (of course with your guy's help :D). Unfortunatley, weather, lack of available garage and time restraints, I am forced to go this route.

          When I spoke with the mechanic, he had told me that he had to bypass the clutch safety switch to get the car even started, but from what I understand fom you guys is that, a faulty CPS would not allow the start, so whether the clutch safety switch is faulty or not, that has nothing to do with the CPS issue??

          Once again fellas ... CHEERS

          Comment

          • SpecM
            R3V Elite
            • Oct 2005
            • 4531

            #20
            yea, the clutch switch shouldn't effect it

            the CPS will, tho
            1989 cirrisblau-metallic 325i

            Comment

            • E30nate
              E30 Enthusiast
              • Oct 2007
              • 1050

              #21
              buy the parts and just have the shop put them on. the sensors are less than that at the dealer.

              heres what realoem has for the cps: 01 PULSE GENERATOR MOTRONIC 1 12141720852 $107.14

              and heres for the clutch switch: 08 CLUTCH SWITCH 2 POL. 1 61318360421 $15.85
              Last edited by E30nate; 12-22-2008, 06:08 PM.

              Comment

              • EA8
                Grease Monkey
                • Oct 2008
                • 328

                #22
                I actually just thought about renting a garage and trying it myself (just within the past hour or so). Now the issue is, I don't have a bentley yet. Any one have diagrams or pictures of the location of these sensors ?? Any links or info??

                I heart you all ...

                Comment

                • E30nate
                  E30 Enthusiast
                  • Oct 2007
                  • 1050

                  #23
                  the cps is right on front of the engine on the bottom side of the crank pully, cant miss it. its one 5mm allen bolt to remove it and a little bit of wiring to unclip. the clutch switch is usually on the clutch pedal linkage. go to this link. the clutch switch is #8 in the pic.

                  http://www.realoem.com/bmw/showparts...62&hg=66&fg=20

                  EDIT: i would just buy the cps and put that in, then see if it starts. the only thing the clutch switch is for is the cruise. after it is running, check to see if the cruise works, then possibly check the clutch switch
                  Last edited by E30nate; 12-22-2008, 08:17 PM.

                  Comment

                  • EA8
                    Grease Monkey
                    • Oct 2008
                    • 328

                    #24
                    I was able to find the CPS @ bavauto for about $60, but I was unable to find the clutch safety switch. Any recommendations on where I could find one? I keep coming up with ones for the auto trans only ... most likely I am an IDIOT and not looking for the correct thing.

                    Cheers

                    Comment

                    • E30nate
                      E30 Enthusiast
                      • Oct 2007
                      • 1050

                      #25
                      i wouldnt worry about the clutch switch. the car will run even if it is bad. but if you really want to get a new one, you should probably look under the cruise control stuff.

                      bav auto has the clutch switch for $35. go their home page and search for the part number 61 31 8 360 421
                      Last edited by E30nate; 12-22-2008, 11:59 PM.

                      Comment

                      • EA8
                        Grease Monkey
                        • Oct 2008
                        • 328

                        #26
                        Originally posted by E30nate
                        i wouldnt worry about the clutch switch. the car will run even if it is bad. but if you really want to get a new one, you should probably look under the cruise control stuff.

                        bav auto has the clutch switch for $35. go their home page and search for the part number 61 31 8 360 421
                        sweet, thanx man.

                        So I called up most of the part places and the earliest i could get the part with overnight shipping would be next Mon. or Tues. (gotta love the holiday season :D), so with that said, I am gonna man up and just take my only available option, which is the mechanic route.

                        I am not an expert when it comes to car repairs, but I am going to watch the mechanic while he is working on the car. i already spoke with him and told him that we should do the CPS first and see if that fixes the problem. When I picked up the car about 4 weeks ago, I drove it from boston to iowa city with the cruise control, so hopefully that's not an issue, but I will just have him tackle one issue at a time.

                        Once this is out of the way, I am just going to rent a garage for a month and do as much preventative maintenance as I possibly could ... (timing belt, water pump, fuel filter, oil, spark plugs, etc). if any one has any recommendations of things that I could do, it would be much appreciated.

                        Recommendations for engine oils, driveline oils, etc ??

                        Anyways, cheers and happy holidays to you all.

                        Comment

                        • yoni
                          E30 Addict
                          • Aug 2008
                          • 468

                          #27
                          Preventive maintenance #1 (if you're lucky and they aren't already leaking / shot) :.

                          Flush all your fluids and replace with redline products or the likes..

                          Transfercase... diffs... steering rack... etc.

                          Comment

                          • E30nate
                            E30 Enthusiast
                            • Oct 2007
                            • 1050

                            #28
                            get e bently before you start doing anything yourself, that way you know you are doing it right.

                            Comment

                            • EA8
                              Grease Monkey
                              • Oct 2008
                              • 328

                              #29
                              will do bud ... the bentley's say that they do not cover the ix's and m3's? I know the ix has the same engine as the i & is, will this make a difference? or will it be sufficient?

                              Cheers & Happy holidays to all.

                              Comment

                              • EA8
                                Grease Monkey
                                • Oct 2008
                                • 328

                                #30
                                alrighty ... just got my baby back from the mechanic (which ran me about $700 after talking with em a bit). The CPS cable was rubbing against one of the pulleys and it finally wore through the shield and ruined the connection. The car still wouldn't start until we put the clutch switch in and then it turned over like a charm. Still confused how the clutch switch went out (doe3sn't make any sense to me), but I am just gonna go with it and say that it was its time to go ... :D

                                Thanks for all your help and patience & Happy Holidays to all

                                Cheers

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