Any Volvo Guys Here?

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  • brutus87
    R3V OG
    • Feb 2010
    • 6280

    #1

    Any Volvo Guys Here?

    A friend of mine is having issues with his 1987 Volvo 740 Turbo, it was running fine when it just suddenly died on the road. It always sounds like it is going to fire right up, but doesn't. The injectors seem to be getting fuel, so I wonder if these cars have some sort of CPS(crank position sensor) like the E30s? If so where? Any help is greatly appreciated, thanks!
    sigpic
  • spiDmang
    No R3VLimiter
    • Nov 2010
    • 3941

    #2
    I assume hes getting spark to the plugs??
    -Brad, AlphaTeam Motorwerks, LLC
    91' 318iS - S54/6MT Swapped
    08' E90 M3 6MT - Daily
    04' Chevy Duramax CCLB - Work Truck/Hauler


    Originally posted by IronJoe
    Alpha Team: running through e30s, gringo icebergs, and 19 yr olds.

    Originally posted by 2mAn
    Brads a standup guy even though he likes buttsex

    Comment

    • Ryann
      No R3VLimiter
      • Mar 2010
      • 3350

      #3
      Timing belt?

      Comment

      • brutus87
        R3V OG
        • Feb 2010
        • 6280

        #4
        He said he was, though hes going to change the coil tomorrow.
        Timing belt?
        I didnt know those had a belt.
        sigpic

        Comment

        • Danny
          Moderator
          • Feb 2008
          • 14217

          #5
          I would say check the knuter valve.

          Comment

          • 5Toes
            Banned
            • May 2010
            • 9836

            #6
            Take the volvo lip and run..

            Comment

            • djjerme
              R3V Elite
              • Sep 2010
              • 5082

              #7
              1991 325i MT2 Touring (JDM bro)
              2016 Ford Flex
              2011 Audi A3 - wife's other German car

              Comment

              • EThirty318i
                Wrencher
                • Dec 2010
                • 219

                #8
                If i'm not mistaken those had timing chains

                Comment

                • gkobez
                  Advanced Member
                  • Jan 2011
                  • 184

                  #9
                  let me talk with the volvo guy here and post back

                  So I spoke with him that is year is about the time that they switched to a crankshaft position sensor. In which case usually when they cool they should start back up briefly. If not ohm out the sensor and see what you get a lot of the times you will get a sensor that will lose continuity or have stupid high resistance. I don't have a spec but if you are getting a measurement with a k in it thats likely too high. Second check the Fuel pump relay as those are a common fault as well.
                  Last edited by gkobez; 10-13-2011, 11:32 AM. Reason: more info
                  sigpic

                  Comment

                  • Ryann
                    No R3VLimiter
                    • Mar 2010
                    • 3350

                    #10
                    Originally posted by EThirty318i
                    If i'm not mistaken those had timing chains
                    The '87 740's came with the B230 which has a timing belt. There were also some 16v 740's, can't remember which years but that engine had belt driven cams as well.

                    Comment

                    • brutus87
                      R3V OG
                      • Feb 2010
                      • 6280

                      #11
                      Yea he replaced the coil. still no go.
                      If it was the timing belt wouldnt you see damage and hear clunking?
                      sigpic

                      Comment

                      • Ryann
                        No R3VLimiter
                        • Mar 2010
                        • 3350

                        #12
                        iirc U.S. b230's are non-interference engines, so if the belt's broken all you need to do is reset the cam timing and install a new belt. Crank the engine over while looking through the oil filler hole on the valve cover and see if the cam rotates. If it doesn't you've got a broken belt.

                        Comment

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