Thread: Intake elbow leaking AGAIN

Originally Posted by DiscoJeffster

It’ll hit when the duct pops and moves. Mine did the same

Ok thanks , i will stop worrying about broken rad mounts then

Bulletman

Originally Posted by Bulletman

Ok thanks , i will stop worrying about broken rad mounts then

Bulletman

Hmm, check the radiator mounts anyway, on my D4 the duct moved but never hit the fan, so something else has moved on yours.

Replaced my intake elbow on DJ'S advice earlier this year at around 200,000km, no issues since, running sweet as a nut.

Originally Posted by Eric SDV6SE

Hmm, check the radiator mounts anyway, on my D4 the duct moved but never hit the fan, so something else has moved on yours.

Replaced my intake elbow on DJ'S advice earlier this year at around 200,000km, no issues since, running sweet as a nut.

After thinking about it , the fan is solid mounted on the engine pulley , and the damage is on the duct side not the rad side , so if it had moved it would hit the front of the fan blades not the rear..... but I will be giving it a once over when I get home.

bulletman

Hi all,

I had a similar situation to this recently and I'm just trying to find out if I have an underlying issue. My 2010 D4 SDV6 3.0 was towing a twin axle caravan when there was a loud bang under the bonnet, we didn’t stop but kept going for a few miles until we could safely get off the road, we still managed to maintain 30mph.

Upon inspection, the air elbow had blown off the front of the throttle control body and eventually into the fan causing a brief overheat.

I thought nice, thats an easy fix, but after refitting the elbow the vehicle couldn’t even cope with small hills and wouldn’t rev above 2000rpm in neutral and had to be recovered on a flatbed to home.


The throttle control body was full of oily soot and was cleaned and the seals replaced. Some soot from left and right inlet manifold was also carefully removed but there is still plenty in there.


MAP and both MAF sensors also got cleaned.


The DPF was removed and was seen to be completely blocked, it was then professionally cleaned and refitted to the D4 with the pressures reset and a regen cycle done using iCarSoft LR 3.0

The D4 is now out of limp mode but still doesn’t feel right. No codes have yet come up.

Whilst I was under the D4 I noticed soot around the driver side turbo as well as more than usual the amount of oil in the hose from the intercooler which may be causing the soot buildup / DPF blockage.

A few weeks before the elbow blew off a kickdown whilst driving didn’t give the expected boost and instead restricted performance came up, this cleared after a power cycle.

After the DPF was cleaned and refitted the D4 thought it would be a good time to let me know that the DPF was full ! Shame it didn't let me know beforehand.

I wonder if the elbow had already started to leak and this caused the DPF to plug over time.

Thanks in advance.

Simon.