Cruise Control relay

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blurp

Anyone know where the Cruise Control relay is located in a 1983 240
Turbo? It's not listed in the Haynes Manual and I took out my glovebox
thinking it might be under there but no luck.

Steering column? Engine compartment? It's white, isn't it?

I've seen many references to repairing faulty soldering in the relays
and would like to do the same.

Thanks,
blurp
 
blurp said:
Anyone know where the Cruise Control relay is located in a 1983 240
Turbo? It's not listed in the Haynes Manual and I took out my glovebox
thinking it might be under there but no luck.

Steering column? Engine compartment? It's white, isn't it?

I've seen many references to repairing faulty soldering in the relays
and would like to do the same.

Thanks,
blurp
Click to expand...

It's supposed to be mounted on a bracket on the inside of the firewall
over the passenger's feet, above the felt kick panel. It's black, about
4" square, 1" thick.

Make sure that the pedal switches are adjusted properly and the brake
lights work. There's a mercury deceleration switch on the outside
passenger firewall that can get bent down when other work is being
done. Also there are several unweatherproof connections in the harness
between the actuator and control unit (relay).

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
Anyone know where the Cruise Control relay is located in a 1983 240
Turbo? It's not listed in the Haynes Manual and I took out my glovebox
thinking it might be under there but no luck.

Steering column? Engine compartment? It's white, isn't it?

I've seen many references to repairing faulty soldering in the relays
and would like to do the same.

Thanks,
blurp
Click to expand...
I believe that by YM89 the cruise control unit was on the driver's side.
99% of cruise problems are vacuum related. Faulty vacuum adjustment on
pedal switches or split hoses between the vacuum pump and the the servo.
IIRC the vacuum servo is attached to a bracket above the accelerator
pedal.

Bob
 
Thanks Bob! I'll take a look ASAP. I remember taking it to Apollo
Garage in Toronto a few years ago and they remarked that the cruise
(which had been working until a few weeks earlier) was simply
disconnected so they reconnected it and it worked for a few more
months and then disappeared again. At the time I thought they were
telling me about the relay but I guess they may have been talking
about the vacuum hose. Mine's an '83 but I'll see if it's in the same
place.

Thanks again, I'll report my findings.

blurp
 
Well I found a bunch of things:
1. I found that I cannot wedge my girth in under the steering wheel
without bruising my sternum
2. After removing the panels I found it very difficult to trace much
by way of hoses as there's a spaghetti mess of wires and hoses with
relay meatballs throughout
3. The top of the accellerator is under a plastic cover which I knew I
wouldn't be able to get back on if I took it off due to the awkward
angle at which I jammed myself in there. Feeling around I think I
could feel a vacuum hose (thin and quite soft/pliable) but didn't do
anything to mess with it.
4. One vacuum hose which enters the cabin in this area is spliced at a
"T" connector which joins a yellow and red plastic piece and all
connections appear to be sound
5. There is a blue plunger switch which is depressed when the brake
pedal is in the zero position. At first I thought this regulated the
brake lights but it doesn't seem to so I assumed that it was the
switch that disengaged the cruise while driving. Since there was no
audible click (only an increase in resistance) when depressed I
concluded that the switch was threaded too far out and adjusted so
that the brake pedal in zero position POSITIVELY pushes in the
plunger. If this IS for the cruise and I've brought it in too close I
can still disengage CC from the control switch on the stalk while
driving. I hope.

I can hardly wait to test it out so if any of this seems obviously
wrong please let me know before I go out there an kill myself.

Thanks,
blurp
 
Send me your email addy and I will scan and email you a fault diagnosis for
your cruise control.

Harold
 
Well I have come to the understanding (thanks largely to Harold's very
useful "Fault Diagnosis" checklist) that there is no Cruise Control
Relay. There is, however, a black box called the "governor" and it is
located at the back of the passenger footwell (on the firewall under
the carpet).

I had performed as many of the checks as I could before getting to
multimeter tests on the governor.

I guess it's THIS that my earlier mechanic was referring to when he
mentioned the cruise had been "disconnected". When I exposed this box
it became evident that the multi-wire connector was not completely
connected to it (!!) so I stuck the harmonica back in as far as it
would go (the little plastic lock/catch wouldn't engage) and went for
a drive.

No dice.

So I'll be going through the multimeter check later but what I want to
know is might I need to somewhow reset this governor (especially since
I plugged the connector back in while the key was in the ignition and
the cruise switch was set to ON)?

The other thing I couldn't be sure of was the vacuum test. The
instructions read:
"Disconnect the thin vacuum hose at the throttle actuator. Start the
engine and and use a finger to block the end of the hose and feel for
vacuum. Release to check that the idle speed increases and becomes
erratic"
I did feel a vacuum but I have no idea how much is enough AND when I
released it the idle speed DID NOT increase or become erratic (not any
more than usual). Would this indicate a vacuum leak? With the engine
off and cold disconnecting this tube reveals that vacuum is in the can
and it can be heard to hiss as air enters. I am very suspicious of a
vacuum leak but this seems to indicate that there is none (at least at
this part of the system).

Thanks,
blurp
 
I have to look into my ISP since Mike F's message (which would have
saved me some time and questions) didn't appear until tonight.

Oh well...

Thanks anyway Mike F!

blurp
 
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