JeffRender
New Member
- Joined
- Aug 15, 2001
- Messages
- 46
Hello ,
I have a 99 Chevy 1500 4x4 350 ext cab. Anyway I have been hearing a knock coming from the engine under load ,going up hills ect. I didn't think this was spark knock, although that's what it was sounding like, because I have always used the same gas 90 octane with 10% ethanol blend. I was worried the noise I was hearing was maybe a piston or wrist pin. My truck is still under warranty so I took it to the dealer for inspection. The tech told me it was spark knocking because I was running the ethanol blended gas. He said he checked the fuel in the tank and it tested out to 8% ethanol. He said if the vehicle does not state it can run on blended fuel you should not use it! I am going to run what gas I have in the tank out then try some ethanol free fuel and see if I see a difference.
I would appreciate any comments on this because this is a new one on me .
Thanks
Jeff
I have a 99 Chevy 1500 4x4 350 ext cab. Anyway I have been hearing a knock coming from the engine under load ,going up hills ect. I didn't think this was spark knock, although that's what it was sounding like, because I have always used the same gas 90 octane with 10% ethanol blend. I was worried the noise I was hearing was maybe a piston or wrist pin. My truck is still under warranty so I took it to the dealer for inspection. The tech told me it was spark knocking because I was running the ethanol blended gas. He said he checked the fuel in the tank and it tested out to 8% ethanol. He said if the vehicle does not state it can run on blended fuel you should not use it! I am going to run what gas I have in the tank out then try some ethanol free fuel and see if I see a difference.
I would appreciate any comments on this because this is a new one on me .
Thanks
Jeff