Transmission clunking and jerking

Tiny
DENNIS HAZARD
  • MEMBER
  • 2009 CHRYSLER TOWN AND COUNTRY
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 161,000 MILES
Had clunking from transmission when shifting gears and some jerking when van shifted gears while driving. Took it to shop, fluid level was good and fluid was good. Guy put it on scan tool and scan said no problems. He then cleared the codes and I didn’t have any problems for about a week, now same thing is happening. I can hear clunking while shifting gears and some jerking while van is shifting gears when driving. I’m at loss and don’t know what to do.
Wednesday, August 7th, 2019 AT 6:10 AM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good morning,

You stated there were no codes but then you said he cleared the codes? What were the codes?

https://www.2carpros.com/articles/automatic-transmission-problems

Clearing codes does nothing as the issue needs to be addressed.

You need another shop that will look beyond a computer and do good old fashion diagnostics.

How long since you changed the fluid and filter?

Roy
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Wednesday, August 7th, 2019 AT 6:34 AM
Tiny
DENNIS HAZARD
  • MEMBER
  • 22 POSTS
I have no idea what the codes were, he said there were a lot from the TPM and I guess something about a very small vacuum leak. He just said he reset everything then the van ran great. I have never changed the filter or fluid mostly because I've had a few people tell me it would just most likely make the problem worse. I feel it is very hard in my area to find a honest person to help me, everyone wants to change the transmission out or rebuild it, before even checking it. I was thinking of changing the filter and fluid but was worried because I don't have the proper dip stick to recheck the fluid level.
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Wednesday, August 7th, 2019 AT 6:59 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Okay, first they are wrong. It would not be wise not to change the fluid. If it is a clogged filter, then you can do more damage by ignoring it.

As far as the dipstick, you can get one at a dealer for only a few bucks.

Start with changing the fluid and filter.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy
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Wednesday, August 7th, 2019 AT 7:27 AM
Tiny
DENNIS HAZARD
  • MEMBER
  • 22 POSTS
Okay, I will change the fluid and filter next week when I can afford it. I will let you know.
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Wednesday, August 7th, 2019 AT 7:52 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Sounds good.

Keep us updated.

Roy
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Wednesday, August 7th, 2019 AT 7:53 AM
Tiny
DENNIS HAZARD
  • MEMBER
  • 22 POSTS
Roy, what’s your take on using Seafoam transmission tech prior to changing filter and fluid?
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Wednesday, August 7th, 2019 AT 3:52 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
No. Do not use it. Just change the fluid.

Roy
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Wednesday, August 7th, 2019 AT 4:05 PM

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