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Won't start without jump or starting fluid

Tiny
JIM LOONEY
  • MEMBER
  • 1986 MERCURY COUGAR
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.
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Tuesday, January 31st, 2012 AT 9:36 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure if its within specs and also check starter motor
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Tuesday, January 31st, 2012 AT 9:49 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
The starter seloniod on the fender needs to be checked. Do u here it click when starting?
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Tuesday, January 31st, 2012 AT 9:55 PM

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