Reflash
Hey guys,
Well after reading the posts on this forum, and after experiencing the nasty rattle in my Prado, I queried the service manager at my local Toyota dealership this week about the noise. The vehicle was due for its 110km service, and I asked if he could have a listen to it. I brought the car with 80kms on it, and noticed it the day after I got it home. It honestly sounded like it had a cylinder with piston slap, and once the engine warmed up it disappeared. When I went to collect the car from its service, the dealership told me that I had two problems with it. Just to give you an idea on my background, I have built performance drag racing engines in the past, so I know a thing or two around an engine. The first problem was the water pump had a small leak which I had no idea about. And two, they wanted to hang on to the vehicle overnight to do a cold start check in the morning, because they said the knocking was excessive even when the engine was warm. Anyways, a long story short, they preformed a "reflash" of the ECU and replaced the water pump. I have been told that it could take up to 1000kms for the noise to dissapear, but I drove the vehicle early this morning, and can honestly say it sounds like a brand new engine. No knocking at all, even when driven hard on a cold engine. I guess now im glad I forked out the 1800 bucks for the premium warrenty, because i only had to pay for e service and the coolant they replaced on the water pump job. I hope this helps some of the guys concerned about the knock in their D4D.
Hey guys,
Well after reading the posts on this forum, and after experiencing the nasty rattle in my Prado, I queried the service manager at my local Toyota dealership this week about the noise. The vehicle was due for its 110km service, and I asked if he could have a listen to it. I brought the car with 80kms on it, and noticed it the day after I got it home. It honestly sounded like it had a cylinder with piston slap, and once the engine warmed up it disappeared. When I went to collect the car from its service, the dealership told me that I had two problems with it. Just to give you an idea on my background, I have built performance drag racing engines in the past, so I know a thing or two around an engine. The first problem was the water pump had a small leak which I had no idea about. And two, they wanted to hang on to the vehicle overnight to do a cold start check in the morning, because they said the knocking was excessive even when the engine was warm. Anyways, a long story short, they preformed a "reflash" of the ECU and replaced the water pump. I have been told that it could take up to 1000kms for the noise to dissapear, but I drove the vehicle early this morning, and can honestly say it sounds like a brand new engine. No knocking at all, even when driven hard on a cold engine. I guess now im glad I forked out the 1800 bucks for the premium warrenty, because i only had to pay for e service and the coolant they replaced on the water pump job. I hope this helps some of the guys concerned about the knock in their D4D.
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