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1986 Ford F-150 Won't start

Tiny
SHE_N_I
  • MEMBER
  • 1986 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
"I am having problems getting my son's truck started. He drove it home last night and it quit running. Thinking it was out of gas he went and got some and put it in but it still wouldn't start. I went over there today to check it out. Checked the spark first and it was getting good spark. Pulled the fuel line off before the filter and checked the flow coming out of the pump and it was flowing fine. Checked the flow after the filter in the fuel rail and that was ok. Went on and replaced the fuel pressure regulator and that still didn't solve my problem. It acts like it wants to start at first but doesn't. I can prime the throttle body with fuel and it will run until the prime runs out. He don't have a lot of money to spend on it and I don't want to do a lot of costly guess work. Help me."
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Saturday, November 1st, 2008 AT 8:54 PM

5 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Can you check the fuel pressure to see if it is within specs and get back to me?

Is it the carburated model or efi?
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Sunday, November 2nd, 2008 AT 8:20 AM
Tiny
SHE_N_I
  • MEMBER
  • 2 POSTS
Checked fuel flow and it sprayed out like a fire hose. This model is fuel injected.
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Sunday, November 2nd, 2008 AT 8:30 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
You need to check at the fuel rail to make sure it is making the proper pressure. Dont just disconnect a line before the filter because that is before it is regulated.
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Sunday, November 2nd, 2008 AT 9:50 AM
Tiny
SHE_N_I
  • MEMBER
  • 2 POSTS
I checked fuel flow at bleed valve and it has good flow coming out of it. Have also replaced fuel regulator. What next?
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Sunday, November 2nd, 2008 AT 9:57 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
See your email, please reply on here as my email I try to keep for other business.
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Sunday, November 2nd, 2008 AT 2:30 PM

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