Thread: Just ticked over 400kms; rattle developed today on engine shutdown?

dose the noise go away with the clutch disengaged, if so its clutch rattle, and yours been a new car you will have the ungraded clutch ,

pumas do rattle on shutdown/ start up, it just the ford clutch

Originally Posted by pc3

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Do all Pumas do it and if fuel is old or lesser quality would that make the egr self clean more?

All Pumas should do the self cleaning cycle on shut down. From the manual:

OVERVIEW
The EGR (exhaust gas recirculation) system comprises:

EGR (exhaust gas recirculation) modulator

EGR (exhaust gas recirculation) cooler

Gas transfer pipe and mixer


The EGR (exhaust gas recirculation) cooler receives exhaust gas directly from the exhaust manifold, where it is cooled by a water matrix which is integrated into the overall engine cooling system.. Attached to the Cool side of the cooler is the EGR (exhaust gas recirculation) valve. This valve is motor driven – controlled by the ECM (engine control module) to provide varying amounts of EGR (exhaust gas recirculation) recirculation depending on the engine operation. At engine switch off the valve opens and closes several times to clear any deposits which may have accumulated during running.

The EGR (exhaust gas recirculation) pipe transports the cooled gas to the mixer where it is blended into to the incoming air stream. The ECM (engine control module) monitors the EGR (exhaust gas recirculation) system function and stores fault codes in the event of failure. The EGR (exhaust gas recirculation) valve can also be activated for testing using the Land Rover recommended diagnostic tool.

Cheers,

Originally Posted by stig0000

dose the noise go away with the clutch disengaged, if so its clutch rattle, and yours been a new car you will have the ungraded clutch ,

pumas do rattle on shutdown/ start up, it just the ford clutch

no I tried before in garage with car in neutral not touching clutch at all switched car off it did the little thack thack routine maybe 4 to 5 times. And it was not that loud just there.

Originally Posted by pc3

no I tried before in garage with car in neutral not touching clutch at all switched car off it did the little thack thack routine maybe 4 to 5 times. And it was not that loud just there.

i mean buy clutch disengaged is foot on clutch,

the clutch is not spinning?

On my 2007 Defender Puma the EGR valve operation occurs after the engine has shut down. There is no rotation of the engine or clutch components at this point. Everything stops then the EGR valve cleaning operation starts with its 5 cycles.

Originally Posted by 4wheeler

On my 2007 Defender Puma the EGR valve operation occurs after the engine has shut down. There is no rotation of the engine or clutch components at this point. Everything stops then the EGR valve cleaning operation starts with its 5 cycles.

Stig as above there is no rotation if clutch when it does it. I'm glad it's not anything to be concerned about at this stage.......all the sheep dung on it is a bigger concern lol

Originally Posted by pc3

Folks just ticked over 400 kms and the car really does drive nice. I notice I have a slight pause in power when accelerating in second if revs are a little low, this could be turbo lag? The more concerning issue was a rattle AFTER engine is shut off, I feel it's tied in with what feels like some slack with clutch and gear changes, if you let the clutch out a little fast it makes the change rough.

What would the rattle be on engine switch off?
I had completed a 100km trip when it did it, it may have dome it too on a gear change from 2nd to 3rd.

Thanks in advance

PC3, I think you me and Brid all seem to have new Puma's from the recent shipment. Did you collect yours in early June? I did.

As you will see from my other recent posts, I have some sort of transmission rattle issue. Let's keep discussion of trans that on that thread (Puma Transfer casefree play) but let's compare notes with Brid.

But what I noticed on my first big drive in terms of the possible EGR issue exactly mirrors your feedback about "lag" at low revs. I described this as "hesitation" on one of my earlier threads.

I found that when accelerating in gear on a light throttle - it seems to only happen in these circumstances - it's like the engine is struggling for fuel or air.

I can make it happen easily going 2-3-4 with a light throttle, or also when accelerating from overrun in 5th or 6th. When I put my foot down a bit harder, it seems to "push through" the issue and go all smooth again.

When I described the sympotoms by phone to the dealer (Alto Sydney) they thought it "sounded like EGR". Mine is going in for a look in 2 weeks time. I will write more then, but as with the transmission or rattle issue, I suggest we compare notes as this sounds like a batch issue...

Gav, I exhibit some of the symptoms you speak of.......I am not whinging as I have gone in eyes wide open. I'm 1 hour away from either Geelong Melbourne docklands. Tomorrow it goes for bullbar lights etc. A few more kms I,ll get my list together and see if some things can be looked at. For me the 130 is the most practical car around, all in all it's brilliant just a couple of teething issues I think......should not be the case, but it's Defenders. I just need to work out if Geelong or Melbourne are more knowledgable with pumas.Shoot us a pm if you want my ph#