Volvo RWD 700 Forum

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Won't Start 700 1987

posted by  someone claiming to be MikeH on  Sun Dec 23 06:46 CST 2001 [RELATED]

My 740 Turbo just died. The motor turns over but won't start. While trying to start it, I notice the tack isn't moving. Ignition problem?

Where do I start trouble shooting the problem?







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Won't Start 700 1987

posted by  matt82dl on  Sun Dec 30 16:53 CST 2001
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last visit: Mon Oct 13 10:46 CST 2014
[RELATED]

The tach gets its sig from the power stage, if there is no spark, I suspect it may be the power stage.


MRE







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Re: Won't Start 700 1987

posted by  someone claiming to be John Sargent on  Sun Dec 23 15:14 CST 2001 [RELATED]

Yes, it is an ignition problem. Check the Hall effect sensor, the Hall effect connector at the distributor, and the Power Stage. There is info in the 700/900 FAQ.







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Re: Won't Start 700 1987

posted by  someone claiming to be Chris Herbst on  Sun Dec 23 07:11 CST 2001 [RELATED]

The tach reads from the coil if I'm not mistaken. Or does it read the distributor on the 700... hm.

Check for spark first, with a spare plug. Then check the timing belt.

Fuses and relays intact? Look everything over. Spark will tell you a lot. If there IS spark, is the timing belt broken or out of alignment?

If not, follow that angle. It would seem to be ignition related since the tach doesn't jump a little bit while cranking, as most 700 cars do.






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