1986 Ford Bronco Engine cut out, sputters

Tiny
JAMN84
  • MEMBER
  • 1986 FORD BRONCO
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
I have an 86 ford bronco with a 5.0 fuel injucted engine automatic transmission. Around 140000 miles. When the truck is cold it runs fine, great even. After driving it for about 20 minutes and the engine warming up to regular operating temp. It starts to cut out, sputters, hesitates when you try to accelerate. Any ideas?
Monday, January 19th, 2009 AT 10:24 AM

3 Replies

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
When was the last time the fuel filter was changed??
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Wednesday, January 21st, 2009 AT 9:03 AM
Tiny
JAMN84
  • MEMBER
  • 2 POSTS
New fuel filter and pump changed when it started, new o2 sensor, EGR has been checked, new map sensor, Cats have been removed, new distributor and coil
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Wednesday, January 21st, 2009 AT 9:47 AM
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Have you checked the vacuum lines? Not much on computers but try resetting the computer. On that year you should be able to reset it by just disconnecting the negative side of the battery and after a few minutes reconnect it. It might be something in the computer that is causing the problem.
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Thursday, January 22nd, 2009 AT 8:28 AM

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