Hi

This car was brought in because the temp gauge was high, the engine check light was on and the car was in 'limp' mode.

Sorry didn't log the dtc numbers, however the codes were,
Cylinder temperature high
Engine protection activated

Cleared the codes and test drove, on the motorway temperature gauge went up, engine check light came on and engine went into 'limp' mode.

When we looked under the bonnet the engine was exceptionally hot, however the bottom hose was cold.

The garage has since replaced the rad cap, the thermostat, the radiator and the water pump (this was worn) but the same fault is re- occurring.

The car does not loose any water, and it passed a cylinder leak down test.

Not sure where to go from here. Is there any common faults with these cooling systems I should be aware of?

hi simon

did you vac cooling system when filling.

blocked bleed off hose to expansion bottle

heater valve if fitted like ka

faulty new component fitted.

temp sensor

pressume fan working

john

Hi

Speak to ford dealer or ford tech, there was a cooling pipework mod on some focus's.

Hopefully someone may be more specific, as I am not sure on engine / year range

cheers Aidan

Hi Simon

as Aidan says, there is a TSB relating to this problem & some modified hoses & thermostat are available (extortionate price for what you get too).

I can't put my hands on the TSB details right now, but a good parts dept should be able to see you straight.

HTH

hi simon,

did you get your focus sorted out ? as i have
exactly the same fault with a 1999 1.6 zetec
focus. there is no limp home or codes issues.
thermostat, water pump & radiator have all been
renewed. the engine getting really hot but radiator & rad hoses staying cold. must be air in
system or a circulation fault.

Please let me know if you had any success& what the cure was.

Thanks

colin

Hi Colin & Simon

Have you looked into the suggestions that Aidan & I put forward? Or are we wasting our time?

Regards

Dave

hi dave

I'm not into wasting anyone's time !!
The hoses are all good & this vehicle has been to
a ford dealer in last 2 weeks for a thermostat etc. I would have thought if there was any mods they would have done it.

Thanks

Colin

Hi Colin

Ford dealer or otherwise, you still need to confirm that the TSB has been acted upon.

It is a very peculiar problem & it has given a few folks the run around, so I would advise that you follow up on the TSB info, before you spend too much time looking at "conventional" cooling system problems.

I was embarrassed at the size of my invoice to repair one of these.

HTH

These are the parts required.

Make sure you bleed the cooling system properly after fitting the parts. Also confirm the engine is not running lean......

Expansion tank cap 7 370 374 1
Expansion tank 1 091 364 1
74 ° Thermostat 1 138 077 1
Coolant hose kit 1 139 359 1
Hose clamp 25 x 40 (two off) 1 032 773 1
Hose clamp 20 x 32 (two off) 1 032 772 1