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1986 Ford Ranger vehicle stumbles

Tiny
IDA MILLER
  • MEMBER
  • 1986 FORD RANGER
  • 4 CYL
  • 2WD
  • MANUAL
This is a 86 ford ranger xl with a 2.3 non turbo fuel injection engine. The vehicle starts to to miss, stumble and loading up and then you have to feather the fuel constantly. This happens when the vehicle reaches operating temp. Never does it when it is cold. Module, cap and rotor button fuel pump, fuel filters, temp sensors all have been replaced, but still does it when it gets up to temp.
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Friday, November 14th, 2014 AT 9:00 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Is there black or white smoke from the exhaust?
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Friday, November 14th, 2014 AT 9:25 AM
Tiny
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  • 4 POSTS
There is no smoke.
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Friday, November 14th, 2014 AT 10:17 AM
Tiny
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Have you checked things like the catalytic converter (plugging), fuel pump pressure?
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Friday, November 14th, 2014 AT 5:53 PM
Tiny
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  • 4 POSTS
Yes, it all has been checked everything is fine there.
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Friday, November 14th, 2014 AT 6:39 PM
Tiny
JACOBANDNICKOLAS
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Wow, you've done a lot already. I assume since there is a new fuel pump, the pressure is within spec. Have you checked the EGR valve to see if it is plugged or sticking? Have you checked engine compression?
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Saturday, November 15th, 2014 AT 4:58 PM
Tiny
IDA MILLER
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  • 4 POSTS
We have checked both and everything is fine there also. So our next step is going to be a new computer?
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Saturday, November 15th, 2014 AT 6:38 PM

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