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240 Abrupt Shutdown in Traffic Solved 200 1991

posted by  Newyankee on  Tue May 13 08:15 CST 2008
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last visit: Tue Mar 11 14:01 CST 2014
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A long while back I posted about my son's 240 that would shut down INSTANTLY from time to time. It was aggrivated by running a/c or seat heaters or any electrical load. That would make it shut down sooner and more frequently. The P.O. replaced fuel pump already. The white FP relay under dash WAS fiddled with because it was greasy and hanging from the harness instead of clamped back in place. We took that relay out anyway and found almost invisible cracks in the expected places.. resoldered and bingo, problem has not come back ever since. Several weeks of driving and AOK. (you almost don't want to trust it, but it's really been fine).

The additional load on the electric system effect really made me go off on a bug hunt. It may have reduced the the overall working voltage to the relay harness by a bit, making the pump trip out sooner and more often. That's my only explanation of why the extra load made more aggrivated symptoms. It had nothing to do with that big terminal block behind the battery. There is NO 25 amp fuse there that I was looking for as culprit, just a terminal block junction.

Hope this helps somebody. Even if that relay has been obviously checked by somebody, do it again for yourself.
--
Genesis 7:11








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    240 Abrupt Shutdown in Traffic Solved 200 1991

    posted by  TONY H on  Wed May 14 03:11 CST 2008
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    last visit: Fri Oct 17 16:39 CST 2014
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    Thanks for reporting back.. I was following your first thread and wondering what you had going on there.

    You could 'float' small wires between the pins coming through the Circuit board, essentially bypassing the Copper traces on the circuit board.

    Reflowing the solder as you did will be fine. I've never had reach for my Spare after fixing my original and it's 5+ years
    --
    '75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm








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    240 Abrupt Shutdown in Traffic Solved 200 1991

    posted by  JimSig on  Tue May 13 16:30 CST 2008
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    last visit: Fri Mar 28 17:24 CST 2014
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    Absolutely classic description of FPR failure! Nothing wrong with using the resoldered one, but from my personal experience get another one (I pick them up from the junkyard for either $1 or $2 or even free (not a hip pocket discount - I don't do that - rather I always show the guy at the counter what I have and more often than not they will say no charge for parts like relays!).

    I gotta tell you though - the intermittent Fuel Pump Relay failure is my favorite Volvo "issue". I have bought two 240's- both clean and otherwise in better than average condition - one for $400 (89 244) and the other for $500 (87 244) that the prior owners have given up on figuring out due to the FPR failure! In both cases a swapped FPR was all it took to put them back on the road.

    I'd like to find a nice clean 88 or later 245 with manual tranny soon - kinda hoping someone with same has a FPR failure soon!








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    240 Abrupt Shutdown in Traffic Solved 200 1991

    posted by  Herb Goltz on  Tue May 13 16:18 CST 2008
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    last visit: Fri Oct 24 13:23 CST 2014
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    I hope you've sorted things out, but if you encounter more trouble, especially when the car is hot, it is likely the power stage. They overheat and you get abrupt stalls. If it happens again without any rhyme or reason, the RPM sensor on the bellhousing is suspect. For reliability, I would replace the RPM sensor, the FPR and the power stage. All 3 are DIY jobs (the RPM sensor is the only challenging one). You are looking at $100 in parts, which is cheaper than getting it towed in most cities...

    Good luck!







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    240 Abrupt Shutdown in Traffic Solved 200 1991

    uid 12839's pic
    posted by  Paul Driver of Inga on  Tue May 13 09:58 CST 2008
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    last visit: Sun Mar 25 16:42 CST 2012
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    You really want to get a sealed fuse holder and put a fuse in there. A short in that wiring would be flashy, lots of smoke, and wild to have happen.

    In this case, not the good kind of any of those

    Congrats,

    Paul








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      240 Abrupt Shutdown in Traffic Solved 200 1991

      posted by  Jorrell on  Tue May 13 15:22 CST 2008
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      last visit: Thu Dec 27 03:00 CST 2012
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      Paul,

      Are you sure this is a LH2.4 car that has the 25A fuse of death, or a LH-3.1 car that doesn't (fuse moved back to the DS A pillar fuse block). One way to tell if it is a LH3.1 car is to look at the AMM, if the tube body is black plastic and the connector almost comes straight up out of the center of the tube (rather than offset to the side, it is a LH-3.1 car... no fuse. LH-3.1 also doesn't have a cold start injector on the bottom side of the intake manifold.

      jorrell
      --
      92 245 250K miles, IPD'd to the hilt, 06 XC70, 00 Eclipse custom Turbo setup...currently taking names and kicking reputations!







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