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1987 Ford Ranger Ranger bucks, chuggs and jumps

Tiny
JED FRANCIS
  • MEMBER
  • 1987 FORD RANGER
  • 6 CYL
  • 4WD
  • MANUAL
  • 180,000 MILES
This truck was purchased used this summer and ran very well for about a month and a half. It started chugging, and bucking after truck ran about 20 minutes. I changed out the fuel pumps and filter. Not much of a change. The truck runs good for 15- 20 minutes then starts chugging, bucking and jumps acts like it is not getting fuel or the power is shorting out to pumps. Sometimes if you wait a few minutes it will run ok for another 20 minutes then it starts the process all over again. Help if you can.
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Sunday, December 7th, 2008 AT 3:31 PM

2 Replies

Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
First, do you get a check engine light while driving? My first thought is the "crankshaft position sensor". Please advise. If you have a CE light, can you have the code(s) pulled and get them to us. Autozone will scan your computer for free as will most major parts stores.
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Sunday, December 7th, 2008 AT 4:12 PM
Tiny
JED FRANCIS
  • MEMBER
  • 3 POSTS
I don't get a CE light, but I will get it scaned and let you know.
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Sunday, December 7th, 2008 AT 5:19 PM

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