Ford Automobiles Forum banner
1 - 10 of 10 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
Hello everyone this is my first post

I recently took charge of my fathers old Escort Encore from 1991

An old car but has only 10000 on the clock and recently had a full service

I drove it for a couple of weeks and all was fine but unfortunately has developed a fault. The symptoms are as follows

1)Firstly this is an intermittent fault

2) It generally occurs after starting on a warm engine and when slowing down

3)The accelerator will go lumpy and I have to rev the engine harder to keep up speed

4)If I come to a halt the engine will not hold its revs in idle and usually stalls

5)The car will then start up as normal but I have to put the pedal to the metal to get it to pull away in first, or it will stall again

6)If I pull up with the engine still on and put into neutral the rev counter will go up and down as if I am revving it

I took it to a garage who weren't that interested in dealing with an old car. They road tested it and couldn't replicate the problem so could do nothing else.

I have put a fuel system cleaner through it but has made no difference

I am now stuck in the position where I need a car for work, I can't drive it or sell it on like that and it seems that unless a garage can replicate it they can't do anything.

If anyone has any suggestions on this I would be extremely greatful

 

·
Super Moderator
Joined
·
29,809 Posts
Find yourself a better garage.

What did they actually replace and do in the service?

Did it have the same issues before the service?

How many miles have you done in the car?
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #3 ·
My dad dealt with the service so not sure what they replaced, but it was working fine for the first couple of weeks.

It had no issues before the service

I have only done maybe a hundred miles in it.

I took it to another garage, they cleaned out the carburettor and and the valve going into the carburettor, it was OK for one day and then went wrong again. I have booked it in again but close to my wits end with this. It is costing me money every day it is off the road. I am now beginning to think this will be and uncurable problem
 

·
My name is Ken and I'm cool
Joined
·
312 Posts
My guess is this is a problem with the automatic choke. It was not uncommon (pre-injection) for people to replace the automatic choke with a manual knob.

For a car of this age, using outdated technology, a typical garage (especially main dealers) will no longer have the knowledge, experience, and skills to work on it. Injection systems have been normal for long enough that the majority of mechanics have never seen a carburettor, and an OBD port is getting that way too - soon they won't know what to do unless the computer tells them.

You need to find a speciallist garage that understands your car and can care for it properly, or you have to learn to do it yourself. Little back-street owner-run workshops with long-in-the-tooth proper mechanics will be likely places to go, but ask the right questions before settling on one.
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #5 ·
Hello

It does not have an automatic choke, and the problem occurs whether the choke is out or in.

Typically it will happen after I have driven it and stopped for a while and then when changing down gears

The garage I use does have an owner used to working on these type of cars, as he has a number of customers who own classic cars. I am booked in there on Wednesday but don't hold out a lot of hope.

If I had some inkling of what is causing it then I would happily try to sort it myself
 

·
dont listen to me, you'll have horsepower and
Joined
·
3,265 Posts
It maybe worth getting a gasket kit for the carb. An air leak between the carb and head would cause inconsistent revs and would affect the mixture of fuel to air
 

·
Registered
Joined
·
583 Posts
1991 escort encore will have a choke of some sort. i remember these quite well. my gran had one brand new in 1991. gasket kit as mondygeek suggests is a good call but id be more inclined to check the vacuum hoses first as this often gave running issues on these engines which, from memory, was a distributorless version of the old 1.3 kent engine which had been around since the 1960s.
 

·
Megger
Joined
·
218 Posts
Sounds like a sticking inlet manifold control valve, especially if the revs are boucing when you are expecting it to idle. The valve is sticking open and the ECU is trying not to let it stall. Just an idea....
 

·
Registered
Joined
·
583 Posts
Sounds like a sticking inlet manifold control valve, especially if the revs are boucing when you are expecting it to idle. The valve is sticking open and the ECU is trying not to let it stall. Just an idea....
theres not a whole lot in the way of an ecu on these. theyre basically a distributorless ignition version of the engine that was around in the mk1 escort, fiesta and mk2 cortina onwards, the 'kent' engine, more commonly known in some circles as the 'crossflow' engine. there is a vacuum line, from memory that goes from the manifold to the bulkhead/firewall (whichever term you prefer) EDIS unit (the electronic control box for the distributorless ignition system) which willl, if split, cause air leaks and throw the mixtures etc out.

there may also be vacuum lines controlling the hot/cold air intake (i cant remember if they still had that on the mk65 or if it was dropped for a bi-metallic unit) which again, would cause running issues if split. even breather hoses can cause issues on these and they were quite common, certainly on fiestas with that engine, for splitting.

also do check that the hot/cold flap is working as these can (more likely in colder weather but worth checking) cause the carb to ice over in light load conditions (cruising at constant speeds etc) and also that, if the air filter has been removed, that there are no spacers from the screws holding the air filter box to the carb that have slipped off and are blocking the choke flap either part open or preventing it closing fully when required. i have seen that before, although it was on a mk4 CVH but with basically the same carb etc.
 

·
Super Moderator
Joined
·
29,809 Posts
Although it shouldn't make much difference when driving, but check the servo for

air leaks. That can affect the idle. Just sprang to mind when i re-read the bit

about problems after braking.

Could be servo leaking air and leaving you with a lean mixture.
 
1 - 10 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top