Pinking Sound

[gs300sport]

Hi

Today was a nice day to take a drive.

Whilst driving through a forest road I had the window down and could here the engine noise echoing off the trees and could hear the engine quite clearly. However, every time i blipped the throttle i could here a slight pinking noise. Only a couple of pinks every throttle blip.

When i put my foot down more I could hear the pinks a bit more but not too noisey.

Does anyone know the cause of this? and how can i fix this please?

many thanks

[Rob's Lexx]

what exactly does a pinking noise sound like mate?

[gs300sport]

dink dink dink ;)

[Gord]

Or pink pink pink

[Rob's Lexx]

Or pink pink pink

[johnboy]

Either the ignition timing is out, which is unlikely or there is a build up of carbon on the top of the pistons, and/or around the valves.

Normally a decoke would sort this out, which means removal of the cylinder head, unless you can find something to put in the fuel to clean it out.

[Keith Bowler]

Hi

Today was a nice day to take a drive.

Whilst driving through a forest road I had the window down and could here the engine noise echoing off the trees and could hear the engine quite clearly. However, every time i blipped the throttle i could here a slight pinking noise. Only a couple of pinks every throttle blip.

When i put my foot down more I could hear the pinks a bit more but not too noisey.

Does anyone know the cause of this? and how can i fix this please?

many thanks

Mine does the same (84,000 miles on clock).

My garage said nothing to worry about. I did try BP ultimate for a while and it seemed to help.

As Johnboy1 says just a small build up of carbon deposits in head.

[seagram]

Hi

Today was a nice day to take a drive.

Whilst driving through a forest road I had the window down and could here the engine noise echoing off the trees and could hear the engine quite clearly. However, every time i blipped the throttle i could here a slight pinking noise. Only a couple of pinks every throttle blip.

When i put my foot down more I could hear the pinks a bit more but not too noisey.

Does anyone know the cause of this? and how can i fix this please?

many thanks

Mine does the same (84,000 miles on clock).

My garage said nothing to worry about. I did try BP ultimate for a while and it seemed to help.

As Johnboy1 says just a small build up of carbon deposits in head.

hi i have not used this forum for a long time but im now looking to buy a black mk2 gs300 sport gain so id thought id pop in here, ive seen this post so decided to reply.

i had an x reg black gs300 mk2 sport i bought it when it was 2.5 years old with 32k on the clock and i remeber driving in the summer with windows down and every time i hit the throttle id get a pinkin noise as well, my car was under warranty so i handed it to lexus who reset the ecu and the problem continued, at least 3 attempts were made to resolve the pinking but it continued, i was told this pinkin noise exists on all gs300 models and there is nothing anyone can do about it, lexus even said if they fitted a brand new ecu it would not solve the problem, i dont think this post is much help to you but the i was told the pinking issue could not be resolved.