93 f150 5.8 terrible mpg?!?

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Mar 9, 2023 | 05:54 PM

#31

OBS4ever

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Mountain Pass

Joined: Jan 2023

Posts: 148

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From: Oregon

Quote:

Originally Posted by R&RFord

That is a crazy thought.

I look forward to seeing another low mileage truck on the market soon.

I just got my truck in September. I am not planning on selling any time soon.

Mar 10, 2023 | 10:15 AM

#32

McLeod

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Joined: Mar 2003

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Quote:

Originally Posted by OBS4ever

I Believe the spark plug wires and the coil wires are original because of only 103000 miles.

If they are original wires they should have a production year printed on them. If so they are likely due for a replacement after 30 years

Mar 10, 2023 | 10:43 AM

#33

Mudsport96

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Joined: Aug 2010

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From: Chillicothe

Quote:

Originally Posted by McLeod

If they are original wires they should have a production year printed on them. If so they are likely due for a replacement after 30 years

Like this? Haha got 318ish thousand miles out of them.

Mar 10, 2023 | 11:05 AM

#34

McLeod

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Joined: Mar 2003

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Yes, I just replaced my 1995 wires just last year myself, albeit with less than 200k miles on them.
Time makes them brittle and susceptible to deterioration.
Lasted a good long time though.

Mar 10, 2023 | 07:05 PM

#35

Prototypemech

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From: Mojave, Ca

Im looking forward to the conclusion of this thread.

Mar 11, 2023 | 08:42 AM

#36

Scndsin

FTE Chapter Leader

Joined: May 2006

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From: Central Mississippi

Something no one has mentioned is your poor MPG could be fuel transfer between tanks & they almost all do it.

Mar 11, 2023 | 10:55 AM

#37

OBS4ever

Thread Starter

Mountain Pass

Joined: Jan 2023

Posts: 148

Likes: 26

From: Oregon

Quote:

Originally Posted by Scndsin

Something no one has mentioned is your poor MPG could be fuel transfer between tanks & they almost all do it.

When I had checked my gas mileage. I had filled both tanks and used combined mileage on both to check my gas mileage. The result was 7.5 for both tanks.

Mar 11, 2023 | 11:55 AM

#38

Mudsport96

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Joined: Aug 2010

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From: Chillicothe

Quote:

Originally Posted by OBS4ever

When I had checked my gas mileage. I had filled both tanks and used combined mileage on both to check my gas mileage. The result was 7.5 for both tanks.

right but if you have two full tanks, and one is filling the other... the inactive full tank will spill out going down the road because you can't put 20 gallons in a 19 gallon tank. So you are losing fuel and it isnt even going through the engine.

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Mar 11, 2023 | 11:56 AM

#39

Mudsport96

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From: Chillicothe

How does the truck actually run? Smooth and adequate power? Or lacking power and rough running?

Mar 11, 2023 | 03:51 PM

#40

OBS4ever

Thread Starter

Mountain Pass

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From: Oregon

Quote:

Originally Posted by Mudsport96

How does the truck actually run? Smooth and adequate power? Or lacking power and rough running?

It runs smoothly and has adequate power, it does start rough when warm though.

Mar 11, 2023 | 03:55 PM

#41

Mudsport96

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From: Chillicothe

Quote:

Originally Posted by OBS4ever

It runs smoothly and has adequate power, it does start rough when warm though.

and you checked the intske air temperature sensor right?

Mar 11, 2023 | 04:03 PM

#42

OBS4ever

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Mountain Pass

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From: Oregon

Quote:

Originally Posted by Mudsport96

and you checked the intske air temperature sensor right?

I am about to check them today.

Mar 11, 2023 | 05:18 PM

#43

OBS4ever

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Mountain Pass

Joined: Jan 2023

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From: Oregon

Quote:

Originally Posted by OBS4ever

I am about to check them today.

After pulling and cleaning both sensors. The truck started quicker and It idles smoother than It had been.

Mar 11, 2023 | 06:34 PM

#44

Prototypemech

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From: Mojave, Ca

Quote:

Originally Posted by OBS4ever

After pulling and cleaning both sensors. The truck started quicker and It idles smoother than It had been.

Which sensors did you clean? IAT and which other one?

Mar 11, 2023 | 07:40 PM

#45

OBS4ever

Thread Starter

Mountain Pass

Joined: Jan 2023

Posts: 148

Likes: 26

From: Oregon

Quote:

Originally Posted by Prototypemech

Which sensors did you clean? IAT and which other one?

Act and Ect, I cleaned with brake cleaner.

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