slight knocking...

[EmpireSix]

There is a slight knocking i guess I would call it coming from the engine. It's not bad and performance isnt affected....yet. Could this be leaky vcg's ? Or is this a sign of bigger problems. It is due for an oil change though.

 

[AndrewCoja]

What kind of gas are you using?

 

[EmpireSix]

93 oct, although sometimes I use 91.. depends on where I get it from. Detonation ?

 

[joegr]

I always get 93, but I found that not all 93's were equal around here. There is one Shell station that I would get a slight knock on light acceleration after a fill-up. After I figured out the pattern, I stopped ever getting gas at that one station, and haven't had any knock since. Just a thought...

 

[steagle]

does the car knock dramatically and does it happen at idle or when braking? i

 

[EmpireSix]

does the car knock dramatically and does it happen at idle or when braking? i

no, its nothing dramatic.. it goes up and down with the rev's.. but it smooths out at higher rpms. it does at idle too.

 

[steagle]

you may want to pop out the coils to see if there's any oil in the wells, but more than likely its the gas

 

[chocolat1701]

it sounds like the coils are going bad thats what happens when they start going bad

 

[EmpireSix]

thanks guys, ill pop them out this weekend