Whatever you do, I wouldn't drive it very far.
X Engine Noise
Thread Starter
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Mountain Pass
Joined: Apr 2004
Posts: 124
Likes: 0
From: Glenwood Springs
X Engine Noise
I had my truck (2003 X 7.3, 248,000 miles) in for some service last week. Among others, I had the transmission flushed. After the requested service items were completed, the service manager called and said the transmission is making a strange, intermittent noise. He said they checked torque on torque converter bolts but the noise persisted. They wanted to pull the transmission and look further. I declined this offer, because with 248,000 miles I intend to drive it 'til it dies and then worry about what to do with it.
Anyway, I drove it home and the noise was significant, but more importantly, it was a noise I had never heard up to this point. I took the attached video this afternoon:
https://www.youtube.com/watch?v=BuVO...ature=youtu.be
I'm no transmission expert, but this does not sound like a transmission noise to me at all.
It sounds awful sharp and metallic, but could this be an exhaust leak?
Anyway, I drove it home and the noise was significant, but more importantly, it was a noise I had never heard up to this point. I took the attached video this afternoon:
https://www.youtube.com/watch?v=BuVO...ature=youtu.be
I'm no transmission expert, but this does not sound like a transmission noise to me at all.
It sounds awful sharp and metallic, but could this be an exhaust leak?
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Maybe. It sounds like something in the converter area. That much noise can't come out of the trans inside and still be working right. It's hard to see a crack in the flex plate.
Elder User
Joined: Jan 2013
Posts: 658
Likes: 0
From: Parker, CO
I've been doing all kinds of research about flushing and whether its good or not. Do you know if they used a cleaner or some type of cleaning additive?
Do you know how the fluid was forced through? (was the truck running and the trans pump was flushing the fluid or was the car off and they forced the fluid through?)
I have spoken with a number of diesel/trans experts in my area and one of them warned against a flush could send the fluid backward through the trans, basically flushing all the bad sediment back onto the clutch plates). I don't know if that's possible but it makes sense that it would be bad.
From what I've read, if your trans is getting near the point of needing a major overhaul, a bad flush can just accelerate the problem.
Do you know how the fluid was forced through? (was the truck running and the trans pump was flushing the fluid or was the car off and they forced the fluid through?)
I have spoken with a number of diesel/trans experts in my area and one of them warned against a flush could send the fluid backward through the trans, basically flushing all the bad sediment back onto the clutch plates). I don't know if that's possible but it makes sense that it would be bad.
From what I've read, if your trans is getting near the point of needing a major overhaul, a bad flush can just accelerate the problem.
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
I've been doing all kinds of research about flushing and whether its good or not. Do you know if they used a cleaner or some type of cleaning additive?
Do you know how the fluid was forced through? (was the truck running and the trans pump was flushing the fluid or was the car off and they forced the fluid through?)
I have spoken with a number of diesel/trans experts in my area and one of them warned against a flush could send the fluid backward through the trans, basically flushing all the bad sediment back onto the clutch plates). I don't know if that's possible but it makes sense that it would be bad.
From what I've read, if your trans is getting near the point of needing a major overhaul, a bad flush can just accelerate the problem.
Do you know how the fluid was forced through? (was the truck running and the trans pump was flushing the fluid or was the car off and they forced the fluid through?)
I have spoken with a number of diesel/trans experts in my area and one of them warned against a flush could send the fluid backward through the trans, basically flushing all the bad sediment back onto the clutch plates). I don't know if that's possible but it makes sense that it would be bad.
From what I've read, if your trans is getting near the point of needing a major overhaul, a bad flush can just accelerate the problem.
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Elder User
Joined: Jan 2013
Posts: 658
Likes: 0
From: Parker, CO
No kidding. I called 3 dealers within an hour of my house and none of the service managers really knew what they did for a flush. They knew very little about their equipment or (in my case) the requirements for a 5R110 flush. I know the trans in this thread is easier to flush because it doesn't have to be heated but none of the dealers really seem to know what they are doing.
I am going to stick to draining what I can out of the pan and doing that regularly and skip all this flushing nonsense. That's what the original service schedule called for anyway. I am glad they put a drain plug in the pan of the 5R110. I just finished replacing the trans fluid on our 96 Blazer and after being sick of the huge mess it makes, I installed a drain plug. It'll be much better next time.
I am going to stick to draining what I can out of the pan and doing that regularly and skip all this flushing nonsense. That's what the original service schedule called for anyway. I am glad they put a drain plug in the pan of the 5R110. I just finished replacing the trans fluid on our 96 Blazer and after being sick of the huge mess it makes, I installed a drain plug. It'll be much better next time.
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Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
No kidding. I called 3 dealers within an hour of my house and none of the service managers really knew what they did for a flush. They knew very little about their equipment or (in my case) the requirements for a 5R110 flush. I know the trans in this thread is easier to flush because it doesn't have to be heated but none of the dealers really seem to know what they are doing.
I am going to stick to draining what I can out of the pan and doing that regularly and skip all this flushing nonsense. That's what the original service schedule called for anyway. I am glad they put a drain plug in the pan of the 5R110. I just finished replacing the trans fluid on our 96 Blazer and after being sick of the huge mess it makes, I installed a drain plug. It'll be much better next time.
I am going to stick to draining what I can out of the pan and doing that regularly and skip all this flushing nonsense. That's what the original service schedule called for anyway. I am glad they put a drain plug in the pan of the 5R110. I just finished replacing the trans fluid on our 96 Blazer and after being sick of the huge mess it makes, I installed a drain plug. It'll be much better next time.
Thread Starter
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Mountain Pass
Joined: Apr 2004
Posts: 124
Likes: 0
From: Glenwood Springs
I took it in to the dealer today. They said the flex plate is definitely broken, and it may have something to do with at least 2 transmission mounting bolts missing - said the transmission is 'very loose.'
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
I thought they checked all that?
Thread Starter
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Mountain Pass
Joined: Apr 2004
Posts: 124
Likes: 0
From: Glenwood Springs
The previous work was not performed by the dealer. The dealer is normally booked full up, so I had taken it to a diesel repair shop in my little town. Has a good rep, but if they checked converter bolts and did not see 1) a broken flex plate and 2) missing transmission mounting bolts then I am somewhat disinclined to share in the positive vibes.
Tuned
Joined: Dec 2013
Posts: 339
Likes: 5
OMG! That noise sounds horrible. Hopefully it won't cost too much to fix. I will never do a transmission flush. My Ex has a transmission drain plug. I just drain and fill until I do a full service.
On vehicles that don't have a drain plug, O’Reilly's has a drain plug kit for about 5 bucks.
On vehicles that don't have a drain plug, O’Reilly's has a drain plug kit for about 5 bucks.
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
OMG! That noise sounds horrible. Hopefully it won't cost too much to fix. I will never do a transmission flush. My Ex has a transmission drain plug. I just drain and fill until I do a full service.
On vehicles that don't have a drain plug, O’Reilly's has a drain plug kit for about 5 bucks.
On vehicles that don't have a drain plug, O’Reilly's has a drain plug kit for about 5 bucks.