won't start without jump or starting fluid

1986 MERCURY COUGAR
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JIM LOONEY
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1986 cougar EFI 5.0 installed in 1974 Bronco. Ran fine for years, now won't start without jump or starting fluid. Tests indicate a voltage drop at the injectors during cranking. Don't know where to go from here.

Engine runs fine once started and will sometimes restart without assistance.
Jan 31, 2012 at 9:36 PM
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RASMATAZ
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Check the fuel pressure if its within specs and also check starter motor
Jan 31, 2012 at 9:49 PM
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CADIEMAN
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the starter seloniod on the fender needs to be checked.do u here it click when starting?
Jan 31, 2012 at 9:55 PM
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