D5 Rattling sound?

[krazy86t]

Hello- Started up the car this morning and heard a light knocking sound when under the car, cannot hear the sound in the car or looking into engine compartment. At first I thought it might be a rod knock, but it is loudest at the torque converter. I have a stock converter (D5), Trans was rebuilt a few years ago. Car has been sitting for several months while engine mods were completed; primed the engine for oil pressure before start-up and oil pressure is fine. I'll try to post a video that shows the sound. Torque converter shouldn't make a knocking sound though, right?

Thanks!

 

[Evans Ward]

Pull the converter shield and check for loose bolts.

 

[krazy86t]

One bolt was 1/4 turn from tight. tightened it back up and knock sound is gone! Thanks for the tip!

 

[Evans Ward]

Hope you used blue lock tite on all bolts to prevent them from loosening again. You're welcome for the tip- I once had a '87 S-10 truck that did that and It did sound like a rod knocking. It also turned out to get loose bolts at TC but not before I sold it cheap thinking the worst. Live and learn they say......