Engine noise when accellerating at 100kph

[tourboy]

Hi All,
Does anyone else's engine sound like an old petrol engine "pinging" when accellerating at around 100kph up a hill?

[kzen]

Can't say I have. What RPM is the car at when this happens?

[tourboy]

Can't say I have. What RPM is the car at when this happens?

Anywhere between 2000 and 3000rpm

[kzen]

Doesn't sound normal. I'd definitely be taking it to the dealer or mechanic, worth getting them to listen.

[davidd]

Mate the handbook says some degree of diesel knock may be present when operating under load or up hills. Could be normal. Cheers.

[tourboy]

It han't happened since and I have tried in vain to replicate it. What I was thinking is that it may have been doing a burn and as it was dumping fuel into the exhaust there wasn't enough left for the injectors with close to full throttle. This could cause a really bad engine knock. I mentioned this to the dealer and they said it sounds possible but they hadn't heard of it before.

[kzen]

I think there's a thread on this on new hilux forums. When you said it happened at higher revs injectors were my first thought. Good that you mentioned it to the dealer in any case.

[RALF]

I don't get a ping but more like a rattle when accelerating up a hill (she still pulls strong though.)
how many Km have you done?
mine has just passed 9,600..

[tourboy]

Only had about 600km at the time