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ok so my 240 has begun to randomly not start. i'm at a loss as to what to do now.
1) 12.7VDC across the bat terms with car off and surface charge removed
2).1VDC drop on the starter cable
3)14.1VDC across the bat terms with car on
4)10.6VDC while load testing battery
5).2VDC drop on alternator cable
battery tests good
starter cable tests ok
cleaned corrosion off LH fuse that mounts near the headlight relay
also cleaned battery terms just to say that i did
additional info
occassionally i get nothing when i turn the key although there are no apparent dead spots in the starter motor; other times the car just cranks and then slows while cranking; also the no-start condition is worse at colder temps.
new plugs/wires 2 weeks ago; new cap rotor 4 months ago; fuel filter last spring (and yes there is gas in the tank); maybe unrelated but the FPR is bad (gas smell from vac line to manifold)--i remember a post on here about a bad fpr allowing too much gas into the cylinder and maybe washing the walls leading to a dry start---this shouldn't cause a no-start though right?
when i tested for AC across the bat terms with the car running i got 30VAC. so i turn around and see if my 780 does the same thing...... 30VAC...but my 780 starts fine if it hasn't sat for over 2 weeks.....WTF?!? do all volvos do this? i thought there was supposed to be 0VAC. and yeah i know AC voltage fries batteries but battery load tested OK.
thanks for any help guys
neal
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