Rattling sound after tranny fluid change

[Mrnicks]

I have a 99 4X4 xtend cab with the 4.0. 134K mi

I've always done oil changes at 4k and about the 70K mark I started doing the tranny fluid every other oil change or so.

So I just did it and now I have a clanky rattling sound while in gear (fwd & Rev).

I drained the pan and replaced the filter and added 3 qts of mercV and about 9-12 oz of lucas tranny fix. Which is the first Time I used it with a fluid change. I've always just added a little hear and there.

It shifts nice and feels pretty responsive, I'm just scared of that noise. I'm pretty sure It's coming from the tranny. I didn't have anyone put it in gear so I can go under it and pin point the sound yet.

I also did a oil change and added lucas leak stop to my engine oil. Could it be lifters banging around? But then again the noise is only when in gear?

 

[Mrnicks]

Wow, I really stumped the ranger station with this one huh? I think my flywheel might be cracked? I don't know? I think it's time to buy myself a nice tundra!

 

[Explorin94]

Does it sound like rocks rolling around in a can?

 

[Mrnicks]

Kinda like rocks in a tumbler if you could imagine that. But yeah kinda like a can too.

 

[kevinsranger]

its a long shot, but you can pull the starter out and check the torque converter nuts and see some of the flywheel to see if you see any cracks.

 

[Mrnicks]

That's exactly what my father told me to do. (He's a big diesel tech)

After looking at where the starter is located, the only question I have is how do I access the hole after the starter is removed? A flashlight and inspection mirror? I don't think I can fit my big heat up in there to look straight in there. Also what and how should I look for something.

Obviously a crack is a crack and something broke is just that. But can I feel play and what about loosen bolts? Could I feel them and or see them?

Also is there fluid in that area when I remove the starter?

 

[kevinsranger]

That's exactly what my father told me to do. (He's a big diesel tech)

After looking at where the starter is located, the only question I have is how do I access the hole after the starter is removed? A flashlight and inspection mirror? I don't think I can fit my big heat up in there to look straight in there. Also what and how should I look for something.

Obviously a crack is a crack and something broke is just that. But can I feel play and what about loosen bolts? Could I feel them and or see them?

Also is there fluid in that area when I remove the starter?

you can access the nuts on the torque converter thru the hole the starter uses, its not big, but it works, you're gonna have to use a pry bar or screwdriver to rotate the flywheel to get to the nuts, you'll see them, if i remember correctly, you need 14mm wrench or socket for the starter mounting bolts, and the flywheel to torque converter nuts are 12 or 13

 

[kevinsranger]

i'm not too familiar with your year setup, but whats the chances you knocked a cat heat shield loose while you were under there? i know the newer models, and my g/f's explorer has a cat right under the trans pan

 

[Explorin94]

Definately check the nuts to see of they are loose. If that is not it the you either have a bad convetor or a bad front pump.

 

[Mrnicks]

bad pump huh? Didn't think of that. Any specific reasosns why those pumps go or just 134k miles?



Would overfilling the tranny cause any of these issues? I did put the recommended 3 qts plus the 9-12 ozs of lucas trans fix.

 

[Explorin94]

bad pump huh? Didn't think of that. Any specific reasosns why those pumps go or just 134k miles?



Would overfilling the tranny cause any of these issues? I did put the recommended 3 qts plus the 9-12 ozs of lucas trans fix.

134K on a A4LD/4R44E/4R55E/5R55E is about the life span. More than likely you have a veain broke off inside the torque convertor.

 

[triumphrider-1]

You did check the fluid level after filling, right?

 

[Mrnicks]

checked hot and cold

hot was at the top of the crosshatched area. I didn't think that was overboard. Maybe I'm wrong?

 

[kevinsranger]

checked hot and cold

hot was at the top of the crosshatched area. I didn't think that was overboard. Maybe I'm wrong?

hey i noticed in your details you have a rear locker, are you sure its not going bad and ratcheting constantly?

 

[Mrnicks]

If you're directly under the truck while someone is in with it in gear and has it braked you here it the loudest in the bellhousing area. I don't think it can be the locker due to the fact it's not even spinning. It actully does it in part too just not as loud as when it's in a gear.