T4 stalling every 1000k HELP!

[d4don]

Next time your T4 is in for service at the Mornington VW dealership get the mechanics to fault check the bus to see if any fault codes are stored in the memory of the ecu.
Sounds like a faulty sensor, which defaults motor to shut down/limp mode momentarily. If that is the case, I don't think this will show up as faulty code.

Otherwise just keep drivin' it.

BTW how long has this been occurring?


Tombi

Did it once 1500 klm ago and again 500klm ago (last week). I keep driving the thing just hoping the next time it does it i'm not compromised whilst turning right in front of a B double a little ways up the road..

The air and fuel filters were done last service but the coil/transformer does look old and ratty...which doesn't mean its not working properly but i might replace it anyway. I do like the idea of these fault code things though.

[Tombi]

As a relatively cheap option and process of elimination, I would replace the ignition relay located benaeth the interior fuse box( right hand side below steering wheel). There are quite a number of them. Cannot remember which one it is sorry.

[vwguru]

As a relatively cheap option and process of elimination, I would replace the ignition relay located benaeth the interior fuse box( right hand side below steering wheel). There are quite a number of them. Cannot remember which one it is sorry.

it should be the one with 30 stamped on it

[d4don]

it should be the one with 30 stamped on it

I like this idea...i'll replace it. probably have to wait another 500 odd k's to see what happens though.

[d4don]

Just an update for those who offered advice and for anyone else who may come across this problem.

The same problem has happened again, three times in the last 3000k, roughly every 1000k. I found the CAT had disintegrated and if i gave it a kicking the car would run ok so i replaced it. Problem solved?...nuh I also made sure the petrol's clean.

The thing stopped completely today and wouldn't even start so i called the racv. Cranking the engine with the coil lead disconnected showed an intermittantly weak or nonexistant spark. The service guy said it wasn't the coil but the module(?) in the dizzy which tells the coil when to spark.

Does this sound right? Car gets trayed to VW Mornington in the morning. Does anyone know if this module(i think that's what he called it) can be replaced instead of a whole dizzy? I'm a bit worried about the $$$$

Thanks again for all the help and advice.

[Silver Caravelle]

Just an update for those who offered advice and for anyone else who may come across this problem.

The same problem has happened again, three times in the last 3000k, roughly every 1000k. I found the CAT had disintegrated and if i gave it a kicking the car would run ok so i replaced it. Problem solved?...nuh I also made sure the petrol's clean.

The thing stopped completely today and wouldn't even start so i called the racv. Cranking the engine with the coil lead disconnected showed an intermittantly weak or nonexistant spark. The service guy said it wasn't the coil but the module(?) in the dizzy which tells the coil when to spark.

Does this sound right? Car gets trayed to VW Mornington in the morning. Does anyone know if this module(i think that's what he called it) can be replaced instead of a whole dizzy? I'm a bit worried about the $$$$

Thanks again for all the help and advice.

It would pay to get the igntion module checked out. But note the dizzy on the end of the engine is post the coil. So if there is not a decent spark at the coil, this will not be down to the Dissy. Yes the ignition module controls the coil spark ....if that makes sense.

It still would seem an intermittant fault. Get them to plug it into a fault code reader see if there any faults.

Yes a block CAT wouldn't have helped either! But will generally indicate that the engine feels a little strangled under load.

Regards,

Scott

[d4don]

It would pay to get the igntion module checked out. But note the dizzy on the end of the engine is post the coil. So if there is not a decent spark at the coil, this will not be down to the Dissy. Yes the ignition module controls the coil spark ....if that makes sense.

It still would seem an intermittant fault. Get them to plug it into a fault code reader see if there any faults.

Yes a block CAT wouldn't have helped either! But will generally indicate that the engine feels a little strangled under load.

Regards,

Scott

Thanks Scott,

They rang and said it was the Ignition module. $580 is still better than 850 for a new diz I guess. Fortunately the damn thing wouldn't start in the workshop so they were able to pin it down...unlike the last time when it ran perfectly for the 4 hours they had it so no faults came up.

thanks again,

Don

[Silver Caravelle]

Thanks Scott,

They rang and said it was the Ignition module. $580 is still better than 850 for a new diz I guess. Fortunately the damn thing wouldn't start in the workshop so they were able to pin it down...unlike the last time when it ran perfectly for the 4 hours they had it so no faults came up.

thanks again,

Don

Hi Don,

Glad they have isolated the fault. You might save a few bob by getting second hand replacement module from the wreckers. Try this mob.

http://www.mercwreck.com.au/

Regards,

Scott

[Tombi]

hope you're problem is sorted Don. Keep us posted.

[d4don]

Had the ignition (transformer) module replaced today and the t4 is running fine. $380 against $90 for an ebay one hurts but its done.

Although service at VW concurs with Scott. An intermitant fault may be something else like the windings in the dizzy. I'll just wait and see. Meanwhile I'll pick up a second hand distributor just in case...I aint payin' $850 for a new VW one no way.

Keep you posted,

Don