View Full Version : Black Exhaust
crawal
12th March 2024, 06:20 PM
Towing the camper today suddenly lost power and belching black smoke
Not the turbo hose as the first thing I checked 
I have soot around the throttle body  (egr blocked )
Any further ideas am going to check the clamps 
Thanks 
Craig
DiscoJeffster
12th March 2024, 06:33 PM
Towing the camper today suddenly lost power and belching black smoke
Not the turbo hose as the first thing I checked 
I have soot around the throttle body  (egr blocked )
Any further ideas am going to check the clamps 
Thanks 
Craig
You’ve probably split the throttle body. It’s common. It splits where the Y inlet meets the throttle section.
crawal
12th March 2024, 07:26 PM
You’ve probably split the throttle body. It’s common. It splits where the Y inlet meets the throttle section.
Many thanks was going to pull it apart tomorrow night
loanrangie
12th March 2024, 07:55 PM
Intercooler is also known to split which is hard to diagnose.
shack
12th March 2024, 09:11 PM
Any leak between the MAF and the intake Y piece should be relatively simple to prove with engine data logging, but a little harder to find.
DiscoJeffster
12th March 2024, 11:39 PM
Any leak between the MAF and the intake Y piece should be relatively simple to prove with engine data logging, but a little harder to find.
Considering the telltale black at the throttle body as indicated in the first post is a good starting point
shack
13th March 2024, 10:34 AM
Considering the telltale black at the throttle body as indicated in the first post is a good starting pointFor sure.
I think my point is still valid or have I missed something?
crawal
14th March 2024, 04:48 PM
Well done to those who suggested the throttle body  15mm hole under neath the lh egr line.
Swapped it night and forgot to reset the codes now wont pull under 3000 rpm  
Any ideas ? 
Many thanks to all the suggestions 
Craig
shack
14th March 2024, 08:02 PM
Did you plug all the sensors back in?
crawal
18th March 2024, 07:39 PM
all plugs checked , I got all codes cleared but still running slow up to 3000 rpm  ,no pulling power at all [bigsad]
shack
18th March 2024, 07:45 PM
all plugs checked , I got all codes cleared but still running slow up to 3000 rpm  ,no pulling power at all [bigsad]Can you post a driving log from whatever tool you use?
Eric SDV6SE
18th March 2024, 07:52 PM
Checked manifolds as well ?
Also, the o ring that seats in the throttle body to intake 90deg bend is hard to seat correctly, and the plastic of that bend piece (that holds the MAP) also fails there,  leading to cracks thst open under boost, you lose pressure etc. 
Replace the 90 deg intake part with genuine is the only option there.
Graeme
23rd March 2024, 11:46 AM
Have you worked-out what caused the hole?  Is an EGR valve leaking badly under load when it should be closed thereby causing hot exhaust to melt the hole?
crawal
25th March 2024, 06:54 PM
Have you worked-out what caused the hole?  Is an EGR valve leaking badly under load when it should be closed thereby causing hot exhaust to melt the hole?
Well done Graeme  took the disco to my Indi, marvelous fella found  the EGR valve broken and losing boost . new/old Egr and a blanking plate fitted all fixed again 
Thank you to all that contributed to my post 
[biggrin]
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