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by Ed Lijewski
Thu Apr 04, 2019 6:32 pm
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

Compressor shaft seal is possible leak point.

YMMV
by Ed Lijewski
Sat Mar 30, 2019 7:33 am
Forum: Scorpio
Topic: Sudden Intermittent High Idle
Replies: 18
Views: 2357

Re: Sudden Intermittent High Idle

Two digit codes (1984-88) say 41 indicates system always lean which might suggest 02 sensor.

YMMV
Screenshot_2019-03-30-07-24-11-270x480.png
Screenshot_2019-03-30-07-24-11-270x480.png (47.21 KiB) Viewed 1708 times
by Ed Lijewski
Fri Mar 29, 2019 7:11 am
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

I'd never run R-134; it was always a second level (at best) choice without major refitting and expense.

R-12.

YMMV
by Ed Lijewski
Thu Mar 28, 2019 7:16 pm
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

Screenshot_2019-03-28-19-02-21.png Everything involves a tradeoff. Everything. When it's hot as hell and humid as Manaus, some of us choose beautiful dry cold air from our a/c systems. At any potential cost. And we know the high pressure cut-off switch is in place to do its job if called on. YMMV
by Ed Lijewski
Thu Mar 28, 2019 6:59 pm
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

Icing of the evaporator isn't anything to worry about. As the Ford.Scorpio article points out, indeed,at length (have you read it all?), not one of several a/c techs queried by the author about that said that it can't cause harm to any system component. I can also confirm from personal experience th...
by Ed Lijewski
Wed Mar 27, 2019 5:51 pm
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

The Ford.Scorpio article makes it clear that bypassing the deicing switch is principally used to bring colder air through the center cabin vents faster. Once the cabin temp has cooled down the bypassing is turned off and the deicing function can be modulated or returned to normal. It's very likely t...
by Ed Lijewski
Wed Mar 27, 2019 7:20 am
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Re: Improving Scorpio A/C Performance

"To be honest, it gives a little boost, but running the condenser fan with the AC clutch works better." I assume the frog-eyes as are the base Scorpios referenced in the link would have the single speed condenser fan (since late '89 Merkur Scorps had it). Starting with that, the mod to control deici...
by Ed Lijewski
Tue Mar 26, 2019 9:26 am
Forum: Scorpio
Topic: Improving Scorpio A/C Performance
Replies: 16
Views: 2138

Improving Scorpio A/C Performance

Interesting tech article on improving (Euro) Scorpio a/c performance:

http://www.fordscorpio.co.uk/acmod.htm


Home page re (Euro) Scorpio a/c system:

http://www.fordscorpio.co.uk/airconelectrical.htm

YMMV
by Ed Lijewski
Mon Mar 25, 2019 3:52 pm
Forum: Scorpio
Topic: Liftgate Release (Hatch lock) failure trouble-shooting
Replies: 19
Views: 2578

Re: Liftgate Release (Hatch lock) failure trouble-shooting

On second look at the photo above, comparing the early switch's boss for the actuator rod with the later switch without any boss, it's possible that the boss could limit the plastic rod from fully or always completing its required travel.

YMMV
by Ed Lijewski
Sat Mar 23, 2019 5:14 pm
Forum: Scorpio
Topic: Sudden Intermittent High Idle
Replies: 18
Views: 2357

Re: Sudden Intermittent High Idle

What will it take for brokencase to ask this expert for his take on cause and solution to SHIS?

viewtopic.php?f=19&t=33259

YMMV
by Ed Lijewski
Sat Mar 23, 2019 6:57 am
Forum: Scorpio
Topic: Liftgate Release (Hatch lock) failure trouble-shooting
Replies: 19
Views: 2578

Re: Liftgate Release (Hatch lock) failure trouble-shooting

Metal vs. Plastic rod is insignificant; I'll bet that XR and Scorpio door microswitches have plastic rods or buttons. What likely matters most is whether the internal activation point is different between the two.

YMMV
by Ed Lijewski
Sat Mar 23, 2019 6:47 am
Forum: Scorpio
Topic: Sudden Intermittent High Idle
Replies: 18
Views: 2357

Re: Sudden Intermittent High Idle

Sheesh.

Ford provided new Scorpio.TPSs with gold plated terminals. Not so re Ranger stuff with regular naked metal of some sort. Scorpios merited top-notch service/repair consideration.

I installed a Ford one re dealing with Sudden High Idle.

YMMV
by Ed Lijewski
Fri Mar 22, 2019 5:51 pm
Forum: Scorpio
Topic: Sudden Intermittent High Idle
Replies: 18
Views: 2357

Re: Sudden Intermittent High Idle

Limp Home mode doesn't allow engine to rev higher than modest rpms. Limp Home mode also allows operator to feather rpms from base idle up to the L.H. limit. In Sudden High Idle operator can raise rpms above the high idling point if needed (but in most cases operator shuts off engine and restarts it ...
by Ed Lijewski
Fri Mar 22, 2019 4:39 pm
Forum: Scorpio
Topic: Sudden Intermittent High Idle
Replies: 18
Views: 2357

Re: Sudden Intermittent High Idle

Congratulations! Scorpio Ownership initiation rites have begun.

There are posts about this phenomenon in Scorpio and in XR sections. New TPS didn't resolve issue in Scorpios, but seemed to in an XR.

YMMV
by Ed Lijewski
Fri Mar 22, 2019 4:34 pm
Forum: Scorpio
Topic: Liftgate Release (Hatch lock) failure trouble-shooting
Replies: 19
Views: 2578

Re: Liftgate Release (Hatch lock) failure trouble-shooting

'89 S.M.: With doors unlocked, when button is pushed it should depress microswitch which then powers the solenoid. So if you have the liftgate underpanel off to see what takes place, when depressing the button that should depress the microswitch sufficiently to power the solenoid. If it doesn't, eit...