fordtrucks80up-digest Tuesday, March 3 1998 Volume 02 : Number 081
Ford Truck Enthusiasts - 1980 - 1996 Trucks Digest
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In this issue:
In a previous lifetime, I had a '90 Chevy Suburban 4x4 with the 5.7
My mileage _never_ dropped below 13mpg city, and on highway trips was
often closer to 15mpg.
Towing a 4,000# trailer I got about 10 to 11 mpg. So, frankly, I'm
amazed at the figures I hear about fuel mileage for the 351 trucks and
broncos here; sounds like even the 302 sucks gas terribly. Given these
engine's power output (compared to the Chevy 350 - flame me, go for it!)
I'd expect much better.
I've also had an '88 F350 460ci with 2wd, dual rear wheels, 4.10, 3
speed auto; this truck got a consistent 10mpg expect on the trips I
hauled a 26' 5th wheel (weight? I don't know, not incredibly heavy but
probably at least 6-7k#) and then I got 8mpg, even over sierra passes,
mostly driving 65-70mph...
Then, basking in the glow of enlightenment, I got my '97 F350 PS CC 4x4.
With this truck, I get about 17mpg city, and about 18 to 19 highway;
towing 5,500# of horses and trailer I get about 13mpg (these are with
the 4.10 rear); with my heavy (2600# dry) camper (ditched the 5th wheel,
just didn't fit the lifestyle), I get about 13mpg then also.
A few months back the car column in my newspaper printed a
someone wondering why he was getting such poor mileage from his
Suburban - only about 10-12 mpg. As politely as he could, the
answers the questions basically called him an idiot - "You have
truck, with poor aerodynamics, 4 wheel drive & a 5.8L engine - I
you're getting average mileage".
I've been away from the comp and think I'm getting in on the tail end
of a fuel economy talk... I have been wondering what the economy "should"
be on a 87 F250 4x4. I just got it and it is running around 10 mpg.
It's only a 302 with a 4spd trans. and 3.55 rear.
The tires are my only obvious concern as they are 265/85 16s I think.
The truck runs great, but shouldn't the milage be better than 10?!
Could anyone offer suggestions on how to improve this?
And if the tires are the problem, what size is best?
Small tire surface or smaller overall tires?
Carb icing can be a real problem. I've experienced it most when temps
were in the 30 to 40 degree range and humidity was high, like in a wet
spring snow storm. You mention the 6 cylinder header so I assume you
don't have the stock exhaust manifold. Make a sheet metal "stove" on
the header near the head that funnels into a 2 to 3 inch tube. Get a
closed air filter housing with a thermostatically controlled air snout
with warm air inlet. You should be able to find one in a junk yard.
Pipe the new stove to the warm air inlet of your new air filter housing.
Either hook up the thermostatic control or block the flap closed when
driving under icing conditions. When summer comes and icing isn't a
problem put the open filter back on and enjoy the better breathing but
in winter use the closed and heated filter. It will flow better than a
big carb full of ice. BTDT.
>Date: Mon, 2 Mar 1998 11:27:00 -0500
>From: Mike Johnson
>Subject: CARB ICING
>I have an 86 F150 with the 300-6, It has a 500 cfm 4bbl carb
>on it and a header. the air cleaner is an open element style.
>On cold moist days my carb ices up while driving. It never
>did this when I had a 390 cfm 4bbl. Is it because if the increased
>air flow? What can I do to fix the problem. If I get the air cleaner
>housing from a ford 4bbl pickup how could I hook up a heat shield
>to make this work with the 6 cylinder header? Do you think this
>would fix the problem?
>I drive from Lansing to Detroit twice a week (75 miles one way)
>and the last couple of weeks its been doing it an awful lot.
>It turns an hour long drive into a two hour one.
>thanks for any advise,
Date: Mon, 2 Mar 1998 18:40:51 EST
Subject: Re: fool economy
hey mark ,give it a tune up, change your fuel filter, and most important
replace your 02 sensor. that should help, and keep the correct tire pressure
in your tires
Date: Mon, 02 Mar 1998 17:58:36 +0000
From: Michael Kakuschke
Subject: 82 van 302
It should be an easy swap. Ive done it to trucks before and they should be
close. All you need is the correct flywheel off the v-8 and the upper and
lower motor mounts. Also you may need to switch the radiator but check it
first for the correct side for the hoses.The only other thing might be the
oil pan depending what you get the motor out off. It sounds like a lot of
work but its actually pretty easy. Hopefully this helps.
- -----Original Message-----
From: Randall Wer
To: fordtrucks80up ListService.net
Date: Sunday, March 01, 1998 11:20 PM
Subject: Re: exhaust
>I was wondering what kind of muffler shops would stock a flowmaster
>muffler. A national chain like Midas, or would a local shop be a better
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Date: Mon, 02 Mar 1998 20:22:28 -0500
From: Ken Payne
Subject: ADMIN: Digest #73
Did anyone get digest 73? For some reason I didn't get
it. I need it for our archives. If someone has it,
I would appreciate it if you forward a copy to me.
Admin, Ford Truck Enthusiasts
Date: Mon, 02 Mar 1998 20:31:33 -0500
From: Ken Payne
Subject: re: Super Duty V10 vibration
Was this a 2wd or 4wd truck? Which chasiss (F250/350/???) Rear end?
I have a F250SD, 2wd, V10, 4.30 LS, CrewCab, ShortBox, Lariat due on
Wednesday afternoon. I'll let everyone know when I get it.
Date: Mon, 2 Mar 1998 20:30:18 EST
Subject: Re: fool economy
In a message dated 98-03-02 18:37:42 EST, you write:
be on a 87 F250 4x4. >>
Uh oh.....look out for the flames!!!
Date: Mon, 02 Mar 1998 21:27:29 -0500
From: Ken Payne
Subject: Chevy Definitions
Someone emailed me a couple of funny Chevy/GMC definitions.
Thought some of you might enjoy them.
Try replacing 2 of the front shocks with Dick Cepek Soft Ride shocks. They
are white, and with the red shock boots, they look just like the Ranchos.
This is what I run on my truck, and I like it. Its still a little stiffer
than stock, but better than with 4 RS5000s. I put the soft rides in front of
the springs. They were about $25 each, and the Cepek store took back the
- -. I've
>replaced the factory shocks with Rancho 5000's. Now the ride is so rough my
>fillings are falling out.
Date: Mon, 2 Mar 1998 21:46:31 -0600
Subject: Re: Bronco leaks and Bronco engine ping
For the exhaust leak on the 351 Bronco, double check the EGR tube at the
right front of the engine. Push the asbestos insulation down on it and
check the convoluted section of the EGR tube. It might look perfect but
they still crack and leak there, even if they look good. Very small cracks.
Push on it with a pry bar or something while the engine is running (but not
too hard) and if it is leaking you will hear it.
For the 95 Bronco engine ping, if it is only under high revs and loads, it
has to be the fuel, even if it supposedly high octane. the truck should run
just fine with normal (true 87 octane) fuel. the EGR valve mentioned in
other postings could cause a problem at lower rpms and lower loads but is
not a factor at wide open throttle because the PCM closes the valve under
these conditions. Make sure that you are getting good gas and double check
the timing as others have suggested.
For both issues that is my two cents. Hope it can be of help.
Date: Mon, 02 Mar 1998 13:01:35 -0500
From: William Woodie
Subject: looking for a hood?
Does anyone know where i could get a performance hood for my 87 F-150,
im looking for like a fiberglass cowl induction hood just for looks. So
if anyone knows of any companies it would be greatly apreciated. Thanks.
Date: Tue, 3 Mar 1998 01:41:15 EST
Subject: Fuel line fittings
I recently bought a '94 F-150 4x4 Supercab with 302 ci. I tried replacing the
fuel filter mounted on the frame rail and found that instead of traditional
hose clamps or screw on fittings it has high pressure braided steel lines with
special fittings. My Haynes repair manual (it stinks) says I need special
tools to remove them. Anyone have any knowledge of this and can they be
removed with conventional tools?
Let me throw my two cents into the gas mileage debate. I had a wrecker
service using GM*'s with 454's and 350's. The lowest mileage I ever got was 7
mpg. This new (to me) F-150 (I'll never own a Gen #al Mo&*rs product again,
long story) just started getting 7-8 mpg. While I fully expected it drink
more than the rice burner I had, the fact that it burns as much as a one ton
loaded definitely has me wondering what's wrong. Any advise that I can glean
from this list is money in my pocket. I don't think anyone getting into a new
truck expects the mileage to compare to a Geo.
Date: Tue, 3 Mar 1998 02:05:05 EST
Subject: Re: Fuel line fittings
hey rob, i have an 89 f-250 and it has the plastic hose fittings on the
filter. but the type of fiitings you have are spring fittings, like used on
air cond lines. go to the auto parts store and tell them you have the spring
fittings. they will sell you a board of plastic circle adapters, you have to
find the right size that fits in the spring head. you slip one of those
adapters around the line fitting. it you have to push it into the line fitting
to release the spring, you will have to move it in and out until it releases.
(put a rag over the line so you dont get gas in your eyes like i did), the
plastic circle tool slides into the fitting to release the spring action. the
set of spring tools are very cheap about 5 or 6 bucks. and if you want to help
out your fuel economy change your 02 sensor in your exhaust pipe, and give her....To access the rest of this feature you must be a logged in Registered User
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