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Help with non-start when engine is hot 700 1990

uid 34776's pic
posted by  Ryan_R on  Sun Jan 13 15:22 CST 2008
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last visit: Tue Sep 24 13:46 CST 2013
[RELATED]


I'm with Bill's post below.

The starter circuit is about as simple as a light bulb. Mechanics that can't fix this probably shouldn't be mechanics.

I believe it's a blue green wire that goes to the solenoid from the inhibitor switch. If there's no voltage there when someone turns the key to start, the starter won't go... probably because the inhibitor switch is toast. It can be intermittent, and the switch is a not uncommon problem here.

Cure is to replace the inhibitor switch, or bypass it altogether (which is how manual transmission 740's are wired from the factory). FYI, If you bypass it, the car will start in gears other than park or neutral.

1990 wiring diagram is here:

http://oak.cats.ohiou.edu/~ridgely/Volvo_docs/

I'd be glad to help more if you need it.

-Ryan
--

Athens, Ohio
1987 245 DL 314k, Dog-mobile
1990 245 DL 134k M47, E-codes, GT Sway Bars
1991 745 GL 299k, Regina, 23/21mm Turbo Sway Bars
Buckeye Volvo Club






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