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Intermittent Rough Idle & Stalling_Kills battery dead

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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rhilway
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Joined: 21 July 2003
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Intermittent Rough Idle & Stalling_Kills battery dead

Post by rhilway »

Hello All :? , I'd really appreciate any knowledge you may have on my situation. My brick is a 1991 940 turbo wagon w/AC. Problem is Intermittent Rough Idle & Stalling_Kills battery dead. I have replaced alternator and battery last week. Also while the car is rough idling, the overdrive switch on the shift level(automatic trans) seems to have some effect on the idle either making it slightly better or worse.(my ex mechanic claims to have changed the O/D switch and relay w/ no effect, the overdrive switches itself on and off at will) Also if I put on the headlights or flashers while car is in middle of its "fit", it makes problem worse. I have removed and cleaned all fuses w/ no effect.Any clues?? Thanks in advance for your help!!!!

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