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Automatic Fiesta Stalling?!


Maxx
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My other half has been using her mums automatic fiesta for a couple of months now and recently mention that it always stalls when its cold when you try to pull away in 'D' so she has been pulling away using 'L'.

Has anyone any ideas what might be causing this stalling, torque converter, gearbox, etc?

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Did a bit of searching last night and it turns out that this is a common and very expensive problem with the Fiesta automatic box there is a TSB out for the issue from Ford:

 

This is a copy of the TSB that deals with the symptoms experienced and unfortunately major tranmission work is needed:

 

TECHNICAL SERVICE BULLETIN No.85/1997

Car and Light/Medium Commercial 26.11.1998

Section: 17/29

 

Model: Fiesta 1.25 Zetec SE with CTX Transmission

built from 11.95 to 10.98 (build codes SM to WR) inclusive

Escort 1.6 Zetec with CTX transmission built from 08.95 to 10.98 (build codes ST to WR) inclusive

 

Markets: All

 

Subject: Harsh gear engagement/engine stalling when cold, after start or when engaging gear

 

Summary

Should a customer express concern over harsh gear engagement or the engine stalling on engaging gear from a cold start, it is possible that the clutch pressure in the transmission is too high. This may also result in a high creep rate in `D', the engine stalling on braking or an incorrect idle speed/engine stalling when cold.

These conditions may be improved by exchanging the transmission oil to the new type B oil, exchanging the clutch plates, and installing a revised transmission valve body (Fiesta only), brake servo vacuum pipe and a revised powertrain control module (EEC IV only - EEC V powertrain control modules should be reprogrammed). On Fiesta variants, a revised air by pass valve (ABV) and adaptor loom should also be fitted.

 

CAUTION:

It is essential that the valve body retaining bolts are tightened in the correct sequence to the correct torque. Make sure that a torque wrench which can accurately measure 5 8 Nm is available.

 

NOTE:

Similar symptoms can occur through other causes. Make sure that the concern is not engine related. For more information on start/run/stall conditions, refer to TSB 24/1997.

This bulletin supersedes TSB 85/1997 dated 29.10.1998, featuring a revision to the Parts Required and the Service Instruction. Please destroy the previous edition of this bulletin.

 

*****************************************************************

 

This TSB goes on another 28 pages detailing the fix.

 

I'm going to try and find a complete copy of this TSB. I'm not convinced this is the problem as I'm not sure it's a Z-Tec or whether it has a CTX box.

Think I need to get some more info on the car first.

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