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shorty



Member Since: 31 Oct 2008
Location: Hillcrest, Kwa Zulu Natal
Posts: 160

South Africa 2009 Defender 90 Puma 2.4 XS CSW Chawton White
Knocking noise
Hi guys. My new 90 is making a serious knocking noise in the engine compartment and power is seriously down. My top speed is +- 100km/h. Ive taken the vehicle to my local dealer who has informed me that the reason for the above mentioned fault is a faulty ECU. the car has been there a week now and the dealer claims they are struggling to re program the new unit. Upon investigation I came across a TSB released not to long ago which perfectly outlines my vehicles fault. Does this TSB suggest a complete engine change or only a component? please see TSB below:

Title: 2.4 Puma Engine Knock Noise.
Type: LD - Defender - All Years - Special Service Messages - Engine
Name / Part No: SSM38792
Info Type: Service Bulletins
Version No: 1
Date Uploaded: 21 Jul 2008
Models: LD - Defender
Title: 2.4 Puma Engine Knock Noise.
Last Modified: 21-JUL-2008 09:44
Category: Engine
Symptom: 497000 Engine Noise

Content Issue: Heavy audible knocking heard on start up.
Cause: On start up oil pressures can cause the piston cooling jets, (PCJ), to latch into a zero flow condition. Due to hysteresis effect in design the jets do not unlatch until the engine is warm and the oil pressures lower again. During this time with no pressurized oil jet flow to the lower pistons / cylinder bores, overheat and scuff conditions / damage can occur.

Action: Replace the engine assy but ensure only engines post serial # ELD00080707063602 are used.
This condition will not occur on vehicles post assured Vin# 9A767162.
Engines post the info above are fitted with modified PCJ internal springs and this issue is now closed.
Reply With Quote Land Rover's don't leak oil, they simply mark their territory!
Post #4432 3rd Nov 2008 9:15am
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Eduardo



Member Since: 28 Aug 2008
Location: RegiĆ³n Metropolitana
Posts: 2110

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
Shorty,

Its a pity to know that other Defender Puma owner have this problem.
It is a thread with a lot of information about this issue in this forum

http://www.defender2.net/forum/topic472.html

Regarding your question, as far as I unsderstand the engine assembly is almost all the motor!

Regards Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge
Post #4435 3rd Nov 2008 1:54pm
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shorty



Member Since: 31 Oct 2008
Location: Hillcrest, Kwa Zulu Natal
Posts: 160

South Africa 2009 Defender 90 Puma 2.4 XS CSW Chawton White
Many thanks for the thread Eduardo! Ive sent alot of the information to my dealer. Land Rover's don't leak oil, they simply mark their territory!
Post #4441 3rd Nov 2008 4:42pm
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