2007 Pontiac g5 GT startup with rattle

Andre11

I have a 2007 pontiac g5 GT from time to time, I get a rattling noise when in starts.

Hi Scotty! I have a 2007 pontiac g5 GT with 140 000km on it and once every 3 or 4 times when I start my car my RPM jumps and at the time time there is a rattling noise (like marbles spinning in a can) thats lasts from 1-2 seconds from the engine. Thank you Scotty for replying to my question, I am posting it here so that I can show you the video as well. I managed to capture it on video with my phone like you asked so hopefully you can listen and maybe shed some light on a future problem that may occur or some preventive maintenance that I can do. Thanks!!

Comments (3)

No. 1-3

Andre11

Mar 18, 2018

ScottyKilmer said: If it's not coming from the catalytic converter, it's inside the engine meaning it's worn inside and time to get rid of it before you spend a ton on engine work

Any chance it could be a timing chain tensioner?

Andre11

Mar 17, 2018

ScottyKilmer said: If it's not coming from the catalytic converter, it's inside the engine meaning it's worn inside and time to get rid of it before you spend a ton on engine work

Thats not good, any way I can check to see if it's the catalytic converter? Feels like it's coming somewhere in front of me while starting the car.

ScottyKilmer

Editor

Mar 16, 2018

If it's not coming from the catalytic converter, it's inside the engine meaning it's worn inside and time to get rid of it before you spend a ton on engine work