MN_Triton_Blue wrote:Howdy, first ever post. Great reading this thread, helped me out alot. MN 11/09 second owner 161000kms. Coolant leaking near water pump out the front. Took into Local dealer and they stress tested it and within the day said they will replace with new long motor. No questions asked. Happy with my ute previously, and also happy with the replacement. I had kept the services up to date through a mechanic. I also had them replace the clutch as I tow an 18ft van, and it had troubles getting away on hills loaded. Took vehicle in Monday 8am and picked it up Friday 11:30am. Looking forward to getting another 160k out of it.
snakesoup wrote:Ok so there is a a confirmed range now dave ? Whats the range mate ?
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Dave, how do you know there was more than one machine and that there was one machine/tooling that was faulty?explorer.dave wrote:Description of Problem and Prevention
MMC has advised that Triton and Challenger equipped with 4D56 High-Power engines may
exhibit a symptom of overheat caused by the loss of coolant.
As preventive action, the following corrective measures are implemented.
Replacing the radiator cap with a high-valve-opening-pressure type (raising the boiling point)
Replacing the coolant (To increase concentration from 30% to concentration 50%)
Reprogram of ECU (for early detection of coolant loss to prevent damage to the engine.)
Cause
Engine overheat may occur due to excessive loss of coolant that may be caused by repetitive
coolant evaporation.
Localised coolant evaporation could also occur after high load driving such as towing heavy
cargo.
Also, if the sealing condition is not adequate at the upper surface of cylinder block (due to the
surface roughness) engine coolant blow-by may occur promoting overheat.
Production Fix
Radiator cap valve opening pressure changed from 109kPa to 127kPa effective 21/02/2014
Coolant concentration changed from 30% to 50% effective 22/11/2013
ECU program changed to add coolant loss detection function (CEL*-on and engine output
restriction in case of detecting coolant loss) effective 09/09/2013
CEL*=“Check Engine Lamp”
Improved smoothness of upper surface of cylinder block for engines built on and after
18/03/2014 (engine number 4D56 UCFA9504 onwards)
snakesoup wrote:Dave, how do you know there was more than one machine and that there was one machine/tooling that was faulty?explorer.dave wrote:Description of Problem and Prevention
MMC has advised that Triton and Challenger equipped with 4D56 High-Power engines may
exhibit a symptom of overheat caused by the loss of coolant.
As preventive action, the following corrective measures are implemented.
Replacing the radiator cap with a high-valve-opening-pressure type (raising the boiling point)
Replacing the coolant (To increase concentration from 30% to concentration 50%)
Reprogram of ECU (for early detection of coolant loss to prevent damage to the engine.)
Cause
Engine overheat may occur due to excessive loss of coolant that may be caused by repetitive
coolant evaporation.
Localised coolant evaporation could also occur after high load driving such as towing heavy
cargo.
Also, if the sealing condition is not adequate at the upper surface of cylinder block (due to the
surface roughness) engine coolant blow-by may occur promoting overheat.
Production Fix
Radiator cap valve opening pressure changed from 109kPa to 127kPa effective 21/02/2014
Coolant concentration changed from 30% to 50% effective 22/11/2013
ECU program changed to add coolant loss detection function (CEL*-on and engine output
restriction in case of detecting coolant loss) effective 09/09/2013
CEL*=“Check Engine Lamp”
Improved smoothness of upper surface of cylinder block for engines built on and after
18/03/2014 (engine number 4D56 UCFA9504 onwards)
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