Rattle or clatter noise m1009

[w5ood]

I have a rattle or clatter noise its higher pitched than the engine, it sounds in the video like a vibration. But its much louder at times sounds like a bolt clanging around in the engine. I inspected the flex plate thinking that was a common issue and to start there but I see no cracks. It starts and runs fine but the noise is driving me crazy. I know now that i either need a rear main seal and front seal on the trans looks like both most likely. Could that be a bearing sound from the oil leaking? Ive never heard of that but I am running out of guesses. I know that when I lay under the truck with it running and put a long screw driver handle to my ear and tough the oil pan I dont hear it in the screw driver. I hear it when I touch the bell houseing on the trans and strange enough I hear it clearest when I touch the front cone of the starter. I dont hear it when I touch the starter motor. Also it started just in park before and when in drive it went away, now its present in drive as well. Thats why I thought it might be the flexplate. Any help is appreciated as usual! Thanks for any advice in advance, Im just not sure where to look next. Im about to just say screw it and drive it until it breaks.

 

[WWRD99]

I have a rattle or clatter noise its higher pitched than the engine, it sounds in the video like a vibration. But its much louder at times sounds like a bolt clanging around in the engine. I inspected the flex plate thinking that was a common issue and to start there but I see no cracks. It starts and runs fine but the noise is driving me crazy. I know now that i either need a rear main seal and front seal on the trans looks like both most likely. Could that be a bearing sound from the oil leaking? Ive never heard of that but I am running out of guesses. I know that when I lay under the truck with it running and put a long screw driver handle to my ear and tough the oil pan I dont hear it in the screw driver. I hear it when I touch the bell houseing on the trans and strange enough I hear it clearest when I touch the front cone of the starter. I dont hear it when I touch the starter motor. Also it started just in park before and when in drive it went away, now its present in drive as well. Thats why I thought it might be the flexplate. Any help is appreciated as usual! Thanks for any advice in advance, Im just not sure where to look next. Im about to just say screw it and drive it until it breaks.

It sounds like pr buzz...old trans slang for pressure relief valve...it's in the front pump...be right at the front of the bell housing. Wonder if you unhook the modulator valve from vacuum if it stops. If fluid comes out it's bad!

Sent from my SM-S906U using Tapatalk

 

[w5ood]

It sounds like pr buzz...old trans slang for pressure relief valve...it's in the front pump...be right at the front of the bell housing. Wonder if you unhook the modulator valve from vacuum if it stops. If fluid comes out it's bad!

Sent from my SM-S906U using Tapatalk

Is that the thing on the side of the trans that runs a vacuum hose up to the engine? Or is it inside the trans? I know nothing about transmissions.

 

[WWRD99]

Is that the thing on the side of the trans that runs a vacuum hose up to the engine? Or is it inside the trans? I know nothing about transmissions.

The modulator is hooked to vacuum on the side. Pump pressure gotta pull the pan.

Sent from my SM-S906U using Tapatalk

 

[w5ood]

The modulator is hooked to vacuum on the side. Pump pressure gotta pull the pan.

Sent from my SM-S906U using Tapatalk

Do you know what other symptoms might appear with a bad pump? My transmission seems to work fine.

 

[WWRD99]

Do you know what other symptoms might appear with a bad pump? My transmission seems to work fine.

That doesn't mean it's a bad pump it's just putting out a high pressure and the relief valve is kicking in. To be sure you'd have to hook a trans gauge to line pressure and see what it is .

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