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cranks, but won't start - fuel pump? 900 1993

an intermittent problem has developed with my 1993 940 wagon, it cranks, but won't start. i've noticed that if i don't hear the fuel pump kick on for a second or two the car just won't start. it has become so frequent that today i have a 50/50 chance of it starting. then i wait and try again a few seconds or minutes later.

two mechanic friends tested the circuit from the relay to the pump recently and it was fine, but when attempting to start - nothing!! then for no particular reason other than removing the number 1 fuse and the fuel pump relay (marked 'J' or 'K' i think) the car started. it was fine for two weeks and today the problem has occurred about four times.

another mechanic who services foreign cars said that he had the same problem with another volvo. he cleaned all battery terminals and both ends of both pos and neg cables and the problem went away.

HELP!!!






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