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Subject: small-list-digest V3 #166
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small-list-digest Saturday, July 3 1999 Volume 03 : Number 166

Ford Truck Enthusiasts - Ranger, Explorer, Bronco 2 and Aerostar
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In this issue:

Re: FTE Small - EEC-IV Computer Programming Sources
Re: FTE Small - check engine light
FTE Small - many questions
FTE Small - check engine light



Date: Fri, 02 Jul 1999 05:19:37 -0400
From: Daner
Subject: Re: FTE Small - EEC-IV Computer Programming Sources

Do you have a 5.0L EFI in your truck?? If so try these sites:

>Hi Folks,
>I am looking for some inputs from anyone who can advise some experts to talk
>with in the area of EEV-IV computer re-programming (not just adding external
>chips). I am interested in re-mapping the advance table and air-fuel
>calculation tables. Thanks for any inputs!!
>Best Regards,
>Bob Marrs (
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Date: Fri, 2 Jul 1999 08:41:04 EDT
Subject: Re: FTE Small - check engine light

In a message dated 7/2/1999 4:48:22 AM Eastern Daylight Time, writes:

> are open. The problem comes from the fact that because you are towing,
> the engine is under a larger load than normal which keeps the engine RPM's
> from increasing when you open the throttle. The engine computer is pumping
> extra fuel into the engine ( again because the throttle plates are opened
> ),
> but since engine RPM's are not going up as they normally would when you
> open the throttle, air flow through the engine is less than it should be
> how far the throttle plates are open. This results in an air/fuel ratio
that is
> way off from what is should be. The air/fuel ratio imbalance causes the
O2 sensor
> to get a reading that is out of the normal range for a long enough time
that it
> finally trips the check engine light to come on. After you get to the top
> of the hill, the engine is able to get back to the proper air/fuel ratio
for the
> RPM it is running, the O2 sensor readings go back to normal, and after
they are
> normal again for a long enough time the check engine light goes back out.

My 94 Explorer, 4.0, does sort of the same to me when towing, and now that
I've heard an explanation it makes sense. I also get a miss-like engine
shudder/shake at idle on restart after driving on hot days with the AC on,
not even towing.
Is there anything I can I do about these conditions?
My wife nixes the 4x4 dually, supercab with slide in camper to pull the boat
idea :(
I had been thinking of putting in the Bosch Platinum 4 plugs, would that be
beneficial or a waste of money?

Last year going back to Ohio from Dale Hollow Lake, after 65-70 mph highway
cruising for about 3 hours with the defrost on, traffic came to a standstill
and when I started accelerating again the engine was acting up real bad and
the exhaust was coming out black as diesel smoke. After realizing the
defrost/AC was on and turning it off engine ran ok, but before that I thought
I had swallowed my anchor.

Thanks for any input,

Tim Ledford (
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Date: Fri, 02 Jul 1999 12:46:30 -0500
From: Matt Mayes
Subject: FTE Small - many questions

Hello, I have a few questions about my '98 3.0L 4x4 Ranger.

1)Periodically for about the last week, my engine has been revving high
(about 2000 or 2500 rpm) whenever I put the clutch in and coast to a stop.
The only way it goes down is if I stop and let the clutch out (as if I was
trying to kill the engine). I have been unable to find a reason for it as
there seems to be no pattern to when it happens. Because it doesn't happen
all of the time I have been reluctant to take it to the shop. Does anyone
have any ideas about what I should do or what it could be?

2)Sometimes when I start moving forward there is a squeak, almost as if the
axle needs to be greased or something. It is coming from the front of the
truck, but beyond that I have no idea where it is coming from. This does
seem to happen whenever I make quick starts. Does anyone know where it
might be coming from or what I can do about it?

3)I am interested in adding dual exhaust to my truck. I would like a big,
deep sound and I was wondering what people's opinions were as to what
exhaust systems would work well with a Ranger. Oh, performance matters a
little and cost matters much more.

Any comments would be much appreciated. Thank you.
| Matt Mayes |
| |
| |
| |
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Date: Fri, 02 Jul 1999 10:59:11 -0700
Subject: FTE Small - check engine light

My thanks to Bolte Brent and Tim Turner for finally clearing up this
subject for me. My Aerostar's Check Engine light came on while I was
bucking headwinds in the Central Valley, trying to maintain freeway
max. The light came on again later while trying to make time up a very
long (10-mile) uphill grade. This got me worried. I see that when we ask
for lots more power than we've got, the light comes on, and that this is
normal: we're flooding the motor with unburned gas, which trips the
Oxygen sensor. Perfectly logical now.


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End of small-list-digest V3 #166

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