small-list-digest Monday, December 14 1998 Volume 02 : Number 346



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

FTE Small - Re: Chat Board - AOL subscriber
Re: FTE Small - Fluctuating temp indicator...
FTE Small - 93 Explorer
Re: FTE Small - "Check Engine" Light on 89 2.3L Ranger XLT
Re: FTE Small - 93 Explorer
Re: FTE Small - Re: Chat Board - AOL subscriber
FTE Small - Thermostat/temp gauge discussion
FTE Small - Re: Temp gauge swing

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Date: Sun, 13 Dec 1998 10:11:57 EST
From: NEWHOME4U AOL.COM
Subject: FTE Small - Re: Chat Board - AOL subscriber

Ken,
Have used the chat board successfully = read and post.
Dates of posting are not visible to me, is this my browser or has date
info. yet to be enabled?
Thanks for this board!

Cyclops
- --The one eyed is King in the land of the blind.

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Date: Sun, 13 Dec 1998 09:08:51 -0700
From: Dave Armbruster
Subject: Re: FTE Small - Fluctuating temp indicator...

Hey guys,

I have a 97 Ranger with the 4.0L that had a similiar problem. The engine
would warm up and the gauge would indicate normal operating temperature.
Then it would begin to fall off towards the cooler side. I figured mine
wasn't a bad thermostat, it reacted too quickly, around 30% of it's travel
in a second or two. Mine has two senders, one's for the gauge the other
is for the EEC. So, if the actual temperature was changing that much, I
would have thought the Check Engine light would have come on as well.

The temperature gauge sender was faulty. The gauge is an electromagnetic
unit and the sender changes resistance with temperature, the higher the
temp the lower the resistance, which makes the gauge move. It is easy to
check, just let the engine warm up, pull the connector off the sender unit
and put a multimeter across the gauge terminal and the engine (as ground).
It should hold a nice steady resistance, changing very little. Mine would
start going up in resistance, which the gauge try to follow. The part cost
about $8 at the dealer.

Something else for you to check, and at least it's easy and cheap to eliminate.

Dave
Denver



- ----------------------------------------------------------------------------
Dave Armbruster
BSEE student
University of Colorado, Denver

"If you can't make it good, at least make it look good."
-- Bill Gates (obviously about Windows 95/98/NT)
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Date: Sun, 13 Dec 1998 10:45:31 -0700
From: Mary McMahon
Subject: FTE Small - 93 Explorer

I have an opportunity to buy a 93 Eddie Bauer Explorer with all options
for $8500, but... it has 106,000 miles on it. It looks good and I had a
mechanic check the compression, computer codes, etc. He didn't find any
problems. My main concern is the automatic transmission, although it
seems to shift smoothly and the fluid was not burned, I know they can
fail if they weren't maintained. Is there anything else I should do to
check out the transmission? Thanks in advance for any suggestions, Mary
McMahon
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Date: Sun, 13 Dec 1998 13:09:25 -0500
From: Garr&Pam
Subject: Re: FTE Small - "Check Engine" Light on 89 2.3L Ranger XLT

Ardy2 AOL.COM wrote:
>
> My 89 Ranger has about 83,000 miles on it. I have never had any mechanical
> problems with it and have owned it since it was new. For the 1st time, ever,
> the "Check Engine" light came on today. I had been driving on the highway
> about 20 min. from a cold start. The light flickered off and on for about 5
> minutes. My initial reaction was that there might have been an electrical
> short causing the problem. All of the dash gauges (oil pressure, battery,
> engine temp.) were in the normal range as usual. I checked to oil dipstick
> after getting home 10 min after the event and it was OK which I expected.
> Last week I took my truck in to have the oil changed and antifreeze changed.
> I wonder if they could have knocked some of the engine sensors loose or
> something?
>
> What kinds of engine conditions might cause this light to come on? Should I
> take the truck into a Ford Repair center to have it looked into?
>
> Thanks!
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My guess is an 02 sensor, but it is worth while to have the computer
read, its alot cheaper than guessing what maybe wrong with it!
Chris
94 Lightning #381
NLOC #238
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Date: Sun, 13 Dec 1998 13:18:17 -0500
From: Garr&Pam
Subject: Re: FTE Small - 93 Explorer

Mary McMahon wrote:
>
> I have an opportunity to buy a 93 Eddie Bauer Explorer with all options
> for $8500, but... it has 106,000 miles on it. It looks good and I had a
> mechanic check the compression, computer codes, etc. He didn't find any
> problems. My main concern is the automatic transmission, although it
> seems to shift smoothly and the fluid was not burned, I know they can
> fail if they weren't maintained. Is there anything else I should do to
> check out the transmission? Thanks in advance for any suggestions, Mary
> McMahon
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Check the line pressure! See if you can find the factory specs to
compare your numbers to!
Chris
94 Lightning #381
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Date: Sun, 13 Dec 1998 13:29:20 -0500
From: Ken Payne
Subject: Re: FTE Small - Re: Chat Board - AOL subscriber

At 10:11 AM 12/13/98 -0500, you wrote:
>Ken,
>Have used the chat board successfully = read and post.
>Dates of posting are not visible to me, is this my browser or has date
>info. yet to be enabled?
>Thanks for this board!
>
>Cyclops
>--The one eyed is King in the land of the blind.
>

You're probably referring to the BBS, not the chat. The
dates aren't working yet. Actually, they are they are
there, but are black on black text. I'm trying to fix
that.

Ken Payne
CoAdmin, Ford Truck Enthusiasts
http://www.ford-trucks.com

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Date: Sun, 13 Dec 1998 13:26:27 -0800
From: Richard
Subject: FTE Small - Thermostat/temp gauge discussion

Part of post from Joe Palaganas:--------------------------------------
'89
Ford Bronco II's (2.9L V6) temp indicator. I notice that after my
engine is warmed up, the temp indicator will swing to the "M" or "A" in
the word
"NORMAL" on the gauge to about the left of the "N". The needle will
continue to fluctuate, especially on trips in cold weather (sometimes in
warm weather as well).

My reply -------------------------------------------------------------

Thanks for bringing this up. A shop recently did a valve job on my '92
Aerostar 3.0. Since the original problem was head gaskets, I agreed to
have the shop replace a few cooling system parts for insurance,
including the thermostat. They used a Stant Premium, spec temperature.
When I drove the van out of the shop, I noticed the fluctuation pattern
that you described. I am used to vehicles in which the temperature gauge
shows a steady increase during warmup until it is slightly past its
"normal" point. Then, when it opens, the gauge shows a sudden drop to
below "normal," and then it comes slowly up again and stays pretty much
put no matter what the driving. Of course, when ascending a long
freeway grade, it rises a bit, and it rises a bit more when I hit the
stop sign at the end of a freeway off-ramp.

In this case, I figured that the cooling system might have air trapped
in it. In particular, at the top of the motor, at the heater core, and
some just-plain bubbles settling out from the tap water. For the next
few days, I bled the system by parking on a steep slope (nose-up) so the
air would rise to the radiator neck, and then topped it off. This
worked. The gauge fluctuations grew progressively less. However, there
were still very small fluctuations that unnerved me: the gauge would
slowly swing back and forth every city block or two. I had the garage
replace the new thermostat again. This brought a very minor
improvement, but it still does that "urban swing." I've been told that
this is the behavior of a "new generation of thermostats." Still makes
me nervous.

Can anyone take this discussion further?

Richard
- --
!! NOTE: TO REPLY, REMOVE THE STRING: "REMOVE.THIS.TO.REPLY" FROM MY
ADDRESS !!

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Date: Sun, 13 Dec 1998 19:00:22 -0600
From: "Gary Snook"
Subject: FTE Small - Re: Temp gauge swing

Joe;
On several Ford vehicles I have owned, this problem has been fixed by
replacing the temperature sending unit.
Hope this helps.

Gary


>
>I have a question I'd like to pose you all in Ford Truck land regarding an
'89
>Ford Bronco II's (2.9L V6) temp indicator. I notice that after my engine
is
>warmed up, the temp indicator will swing to the "M" or "A" in the word
>"NORMAL" on the gauge to about the left of the "N". The needle will
continue
>to fluctuate, especially on trips in cold weather (sometimes in warm
weather
>as well). Does anyone know what could be going on? I had the water pump,
>thermostat, and cooling fan replaced/repaired in early '98, so I'm
suspecting
>it may be a thermostat quirk or a maybe even a cooling fan clutch quirk.
Can
>anybody give me any other ideas?
>
>Thanks!
>Joe Palaganas
>1989 Ford Bronco II



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