Hi there, I'm a newbie here and I have a problem with a 1KD engine, D4D.
I work at a dealership and am having a great deal of difficulty with getting any info about this particular problem.
It is a hilux but is a 1KD engine. The vehicle presented initially with a terrible diesel rattle while the owner was driving at highway speed, and the problem persisted when the vehicle was started. Fuel pressures were tested with diagnostic device and it was found that pressures of over 400000kpa were present in the common rail. Testing at the time by another tech lead to a diagnosis of a failure of the common rail assy and a new rail and sensor assy was installed. Vehicle left only to return with rattle issues still present, but definately not as bad.
Now it's my turn.
The vehicle starts and runs fine when cold, however after the vehicle is at operating temp, a strong diesel rattle is heard for a few seconds after starting the engine. Monitoring the pressure in the rail, it can be seen that the fuel pressure spikes to 120000kpa for a few seconds, when the actual target pressure for the rail is around 35000kpa at idle. Initially I suspected the supply pump, however this tests OK. The injector feedback values are within spec too. This is a different problem to the injector issue that there is a thread on already.
I was wondering if anyone had had a similar problem, and how was it resolved?
Thanks in advance,
Scoot
I work at a dealership and am having a great deal of difficulty with getting any info about this particular problem.
It is a hilux but is a 1KD engine. The vehicle presented initially with a terrible diesel rattle while the owner was driving at highway speed, and the problem persisted when the vehicle was started. Fuel pressures were tested with diagnostic device and it was found that pressures of over 400000kpa were present in the common rail. Testing at the time by another tech lead to a diagnosis of a failure of the common rail assy and a new rail and sensor assy was installed. Vehicle left only to return with rattle issues still present, but definately not as bad.
Now it's my turn.
The vehicle starts and runs fine when cold, however after the vehicle is at operating temp, a strong diesel rattle is heard for a few seconds after starting the engine. Monitoring the pressure in the rail, it can be seen that the fuel pressure spikes to 120000kpa for a few seconds, when the actual target pressure for the rail is around 35000kpa at idle. Initially I suspected the supply pump, however this tests OK. The injector feedback values are within spec too. This is a different problem to the injector issue that there is a thread on already.
I was wondering if anyone had had a similar problem, and how was it resolved?
Thanks in advance,
Scoot
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