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760 stalling - help my son needs to get to school 700 1988

posted by  Big Harry on  Fri Apr 25 13:08 CST 2008
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last visit: Sun Sep 21 11:06 CST 2014
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I have an 88 760 that I found in a junk yard for $150.00. The car was perfect except for the fact that it had 147k miles, six owners and had been "donated" to 3 different charities before being scrapped. The problem? It always cut off intermitently and sometimes would not run for days. This one is pretty well documented in the archives if you want to search for some of the solutions. The only person on this site that knew what was wrong was a girl mechanic from Canada. She told me to throw away the wiring harness and put a new one in. Apparently the 88 760 was notorious for wiring failures and she had several trash cans full of harnesses to prove it.

Volvo had the dumb idea to use sleeve type connectors on these harnesses and broke the ground wires in the connector. On a twenty year old car, the resistance across a brass connector drives the ECU nuts and the car won't run well. Rebuild the distributor, which is another pain in the --- with a new Hall Sensor (inside of the distributor), replace the ignition amplifier on the left fender, take the wiring harness apart and solder the sliced connections (they would have recalled a GM car for that type of wiring!) get the grounds out of the connectors, and the car will probably be fine... until something else quits.


--
Will Dallas, www.willdallas.us, www.willdallas.org, www.willdallas.com, www.dallasprecision.com 86 245 DL 222K miles, 93 940 260K miles, 88 765 GLE 152K miles







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