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1991 Ford F-350 power loss

Tiny
MARVINSMESS
  • MEMBER
  • 1991 FORD F-350
  • 5.8L
  • V8
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
After truck is driven a few miles it has sudden, fall on it's face, power loss and cuts out and dies.
Monday, July 6th, 2015 AT 9:46 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge auto parts rent it
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Monday, July 6th, 2015 AT 12:07 PM
Tiny
MARVINSMESS
  • MEMBER
  • 3 POSTS
Already have
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Monday, July 6th, 2015 AT 12:22 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
What was fuel pressure results? Does it restart after falling on face
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Monday, July 6th, 2015 AT 1:02 PM
Tiny
MARVINSMESS
  • MEMBER
  • 3 POSTS
Yes. Sometimes it takes a long time. Eliminated the fuel filter, fuel pump (it has the 30-45 psi), EEC, fuel pressure relay valve, air filter, and I'm fixing to change plugs and wires.
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Monday, July 6th, 2015 AT 1:18 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The only thing I can tell you is to check fuel pressure when it stops, what may be happening is the pump is getting hot and not putting the pressure out like it should. Fuel pressure shold be 35-45 with key on engine off. If not to minimum then that may be your problem. Also shuld put out 1.5 pint in 60 seconds.
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Monday, July 6th, 2015 AT 3:45 PM

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