Technical Prob.Can anyone help? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

XR GT · 05-27-2003, 00:21

We have a 97 EL Falcon Futura S/Wagon 6cyl.

Situations: We have only just (approx 21/5/03) had an Idle Speed Control motor replaced. It still shakes slightly when the car stops (be it at the intersection, give way or stop sign). This occurs sporadically, but does so during each drive. The distance of the driving may only by 3-5 kms in total round trip. Usually we warm the car before driving. Before this replacement, whilst braking the car would shake around 30-40km/h, the engine would begin to idle roughly. Going round a round-a-bout or at a give way it would suddenly "cough" loose idle speed, either cut out or increase rpm beyond idle speed, as though it were choking and then shudder. It would also "choke" and cut out when reversing.
From a standing start, say waiting at the lights, and then driving away, it lacked responsiveness to accelerate or if it did, a heap of black smoke would be seen from the exhaust. This rich idle speed fuel mixture has been fixed since the ISC motor replacement, but we still get the rich black smoke on acceleration sometimes.

We have had an on-car fuel injection clean, a manual check of the filters in the injection and a change in air and fuel filters.
The circuits have been tested by the service computer and tested OK.

Its been a great car but the last 6 trips to Ford for repair are getting a bit much.

Can anyone make any suggestions or relate to a similar prob.

Thanks for your help.

mongrelEB · 05-27-2003, 04:09

Try changing the plug leads - what do the spark plugs look like?
Also it could be that the vacuum line has come off the MAP sensor.
But it sounds, from your description, like a misfire; the computer adds fuel because revs are dropping, thus the black smoke.

XR GT · 05-27-2003, 05:52

Thanks Mongrel EB, i'll give it a shot and let you know.

Cheers

9psi EB · 06-04-2003, 04:51

Try a new coolant temp sensor, theyre cheap < $25.
Either that or the MAP sensor as suggested above,

Have you run any codes on the ecu, or reset it?

9psi EB

EBXR · 06-04-2003, 05:03

I was advised that the on car fuel injector cleaning was nowhere near as good as getting them taken off the motor and cleaned properly.

By pulling them off and getting them tested tested and cleaned I found out that 4 out of 6 on my EB would not spray properly, and that I had to replace them...

May be worth investigating.

rod · 06-04-2003, 05:07

greetings all
i dont think it is worth cleaning the injectors on an el as they have droped in price

as for the coolant temp sensor that is worth changing & once it is done drive the car for approx 80km's to reset the comp

regards
rod

XR GT · 06-09-2003, 03:18

Hi All,

Thanks for the suggestions. You wont believe thou, 4 days after I posted this topic the car hasnt missed a beat. See how we go, Ill keep you posted, thanks again.

Cheers