Worried about sound from rebuilt transmission


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Old 04-27-23, 10:56 AM
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Worried about sound from rebuilt transmission

92 Ford Ranger XLT with 2.9 V6
A4LD 4-speed automatic

My transmission was rebuilt at a transmission specialist several days ago. I did not have time to research this and wait for shipping of a remanufactured transmission to do it myself. The new transmission works fine. But there is a 'ticking' sound coming from the torque converter.

The ticking speeds up with the RPM when you press the accelerator pedal. It is always present if you are in neutral, park, drive.....etc.
I crawled under the truck and checked for the obvious:

1. No loose mounting bolts
2. No loose bracket
3. No loose exhaust
4. No loose heat shields
5. No loose starter
6. No loose shifter linkage
7. no driveline issues
7. plenty of transmission fluid
8. It's not power steering low on fluid
9. No loose connections in the engine bay

The sound is different up close when you are under the truck. It sounds more like a conveyor in an industrial setting, except not nearly as loud of course. Any idea what this might be before I bring it back to the service garage? They are aware of the sound but asked me to give it a couple weeks. I'm not waiting that long. This is not normal

Will this website allow me to attache a smartphone audio recording file of the sound?
 
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Old 04-27-23, 11:11 AM
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would take it back and have them look at it.
 
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Old 04-27-23, 11:19 AM
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The sound recording I have won't upload to this site anyway.
 
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Old 04-27-23, 11:49 AM
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really should of not of left like that if it was noticeable. best case maybe a flexplate cover or loose convertor bolt, worst case torque convertor or transmission or both maybe flywheel.
 
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Old 04-27-23, 02:24 PM
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I couldn't find a loose torque converter bolt. There is a thin plate sandwiched between the torque converter and engine that is bent or warped. But it seems to seal ok.

I'm taking it in this Saturday. The guy said if the sound is coming coming from the TC or transmission, he'll cover it under warranty. I'll follow up with you guys.
 

Last edited by bluesbreaker; 04-27-23 at 04:07 PM.
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Old 05-02-23, 09:04 AM
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The service garage owner listened to the sound briefly on Saturday. He said it's the torque converter. This place rebuilds the transmission and they send out for a ready-built torque converter. He said he'll replace the TC under warranty.

It shifts pretty good. But occasionally 2nd and 3rd gear changes occur close together instead of being spaced out more. I don't know if this is because it has already built up speed and is close to making the 2nd gear change.
 

Last edited by bluesbreaker; 05-02-23 at 09:14 AM.
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Old 05-08-23, 11:42 AM
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The torque converter has been replaced. That 'fluttering' sound is gone.
There are a couple subtle differences in shifting I am monitoring.
 
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Old 09-25-23, 10:10 PM
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I need to take this back to the transmission repair place again in the next 10 days or so. It's got about 4000 miles left on the warranty. Have any of you experienced this with the A4LD transmission, and what ended being the cause? 1st gear hangs in too long before the engine warms up. Then it's ok.

Also for the same load and acceleration, the shifting alternates between light and the characteristic 'jolt' you feel between gears. Shouldn't it be more consistent? My last transmission always had the 'jolt' when it shifted gears.....not to much, and not too little
 
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Old 09-26-23, 09:14 AM
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when you take it back would just give them as much detail as possible at what it is doing and specific shift issues like 1st-2nd or 2nd- 3rd etc.
generally the shift will be firm or feel much more of a jolt under heavy acceleration and lighter under normal driving at lower throttle looks like it uses a vacuum modulator to monitor engine vacuum and some may be adjustable.
 
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Old 09-26-23, 10:07 AM
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Last time my A4LD was rebuilt in 2015, I had to take it back 3 times before they finally got it right.
I wanted to to take it to the most reputable transmission shop in town this time. They refused to work on it because they said too many warranty claims on the A4LD parts kits.

When I go back to this place, I'm going to ask if they replaced the pump. If they say No, I should insist on a new pump.......correct? I know they replaced hard parts this time. But the pump, I'm not sure.

 
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Old 09-26-23, 10:10 PM
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doesn't really sound like a pump issue to me and I would suspect they did install a new pump.
 
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Old 09-26-23, 10:43 PM
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valve body or shift kit maybe ?
 
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Old 10-21-23, 11:46 AM
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I took it back to the transmission place for a test drive. The symptoms did not reproduce. I think the truck has to sit for 8 hours or more. The shop owner said I can leave it overnight and we can do a second test drive early next Saturday morning when it's cool.
 
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Old 10-29-23, 12:49 PM
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The transmission shop owner took it for another test drive late Friday afternoon. Sure enough, it got stuck in 1st gear as usual. He agreed this needs to be fixed. And he is guessing faulty valve body or governor.
 
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Old 10-30-23, 03:11 AM
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Glad he is standing behind his work and hope he gets it straightened out for you.
 
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Old 11-29-23, 10:12 AM
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I took it back to the transmission place for the 4th time on Monday. The first to second gear shift delay was fixed.
But 4th gear overdrive keeps going in an out. Also, shifting is sometimes way to weak. So this time he is putting in a shift kit with new solenoids. He also said he would rebuild it again if needed.
 
 

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