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It's been a few years since I've been on here. Several years with no problems but rust got the best of my 87 240 and I junked it and bought another. I picked up an 88 240 in July and it died a few weeks later. I did save all the major stuff that could go wrong off the 87 before I got rid of her. It was running rough on the way home a so here is what I did: New plugs, wires were already replaced. Still same, swapped the 007 AMM with a good one, still same. Pulled the cap to inspect & clean and the entire plug on the back was rigged with a piece of cardboard. The rubber was so rotted that I fished out pieces of it from inside the distributor with tweezers. Put it back together and taped it w/ electrical tape for now. Car ran smooth and I thought it was OK. Next morning I got about a block from home and it died. Everything pointed toward the rigged distributor. (ordered a new plug end, you can still get them from Volvo). In the meantime I reset the plug and it started up roughly and ran (sort of) but was starving for fuel, then flooding then starving again until it backfired and died. My father-in-law swore it was a fuel problem so pulled the return line and it was bone dry. I put in a new fuel filter and swapped my old pump which was working perfectly. Still no start and no fuel. Ran a jumper to the fuel pump and it ran great and circulated the fuel fine. Replaced the fuses, swapped the fuel pump relay and computer. Nothing. My brother came over and we checked the current to the pump relay. Left side 12V, Right side only a minute spike for a split second while starting and then nothing, put in a new relay. nothing We also checked the current to the coil on both sides and they were OK but no power going out through the plug wires or coil wire. Put in a good coil, nothing, put in a new coil, nothing. A Mercedes guy happened to be over so I showed him my problem. He said the Bosch distributor controls the signal to the computer to allow the pump to work only if it detects spark. I got the now plug in the mail, but it looks like I will have to take the entire distributor out and apart to fix it. Before I tear it out, is there anything I overlooked....Sorry it was so long.
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