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F-150 Poor mileage

Tiny
CAT1947
  • MEMBER
  • 1915 FORD F-150
1987 Ford F150 302 auto 110,000
new tune up plugs wires cap.
Doesn't use oil

It seems that when I first got this truck I got about 15-16 mpg

I don't seem to be getting 10 now.

It seems to drive fine except for a slight pinging when I accelerate after the engine warms up.

Maybe someone tell me which sensors or componets I should check.

Thanks for the help
Andy
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Friday, January 13th, 2006 AT 7:40 AM

4 Replies

Tiny
DUDE
  • MEMBER
  • 50 POSTS
:roll:

check timing
If fuel injected , injectors may be dirty also
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Friday, January 13th, 2006 AT 7:46 AM
Tiny
CAT1947
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What is the best way to clean the injectors. I don't think they have ever been cleaned.
Andy
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Friday, January 13th, 2006 AT 8:07 AM
Tiny
DUDE
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:lol: You can get injector cleaner at aauto parts store
Chryslers need it about every 20000 miles I was told by a master mechanic
I have a kit for doing it through the fuel rail however tou can get a bottle that you pour in the gas tank as per label instructions
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Friday, January 13th, 2006 AT 2:27 PM
Tiny
WANZER2
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You can go to any oil change place and get a fuel system cleaned. It costs about $75.00 but its worth it.
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Sunday, January 15th, 2006 AT 6:29 AM

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