JonL Posted August 21, 2020 Report Share Posted August 21, 2020 I have a 2012 Journey with about 90,000 miles. I started to hear a noise, like a knocking sound, from the engine bay area. It sounds like something is loose and "knocking" against the frame or other part. I went under the engine and I believe it is coming from the area the engine and trany bolt together. Any ideas? If I speed the engine up the slightest bit, the knocking noise stops. I cannot feel any vibration while driving, but the knocking sound is getting worse. I am thinking flywheel or torque converter, but I don't know. Thanks in advance!!! Jon Quote Link to comment Share on other sites More sharing options...
John/Horace Posted August 21, 2020 Report Share Posted August 21, 2020 Welcome to site. Which engine in the vehicle? What does oil pressure show psi show on cluster when it’s knocking? Any oil leaks from front or rear main seals. That would show crankshaft runout issues. Could try STP to see if it frees up something sticking. Quote Link to comment Share on other sites More sharing options...
JonL Posted August 31, 2020 Author Report Share Posted August 31, 2020 It has the 2.4 engine, oil pressure was always good and there are no leaks. There was very little to zero vibration when under a load. Turns out the flex plate was cracked (yes, I called it a flywheel earlier). It was too big of a job for me to do in my yard, so I took it to Aamco. Do you know if this is a known issue with the Journey or just one of those things that happened? My wife drives this and I know she is not rough on it. Thanks. jkeaton 1 Quote Link to comment Share on other sites More sharing options...
jkeaton Posted August 31, 2020 Report Share Posted August 31, 2020 Never heard that being a common issue on any vehicle, but it does happen. Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 31, 2020 Report Share Posted August 31, 2020 had a 72 nova and during the winter on my way to work going thur the Mi snow storm and all of a sudden heard a scraping and slight banning noise as i was almost at work so after i got off the noise was still there and stopped at the chevy dealership on the way home and it was the inspection plate that covers the bottom of the bell hosing had got dented inward by some frozen ice from the road... Quote Link to comment Share on other sites More sharing options...
JonL Posted September 3, 2020 Author Report Share Posted September 3, 2020 I picked up my Journey from Aamco yesterday and I was surprised yet again. I was told that is was the torque converter and not the flex plate. After I paid the $250 difference in the bill, it works just fine. The noise is gone and shifts like it should. I would have figured Aamco, of all places would wait to figure out what is wrong before telling the customer it was something else. Live and learn.... Thanks for the posts and the help. jkeaton 1 Quote Link to comment Share on other sites More sharing options...
2late4u Posted September 3, 2020 Report Share Posted September 3, 2020 what was the total cost for the new torque converter and labor? just wondering Quote Link to comment Share on other sites More sharing options...
JonL Posted September 4, 2020 Author Report Share Posted September 4, 2020 I was given a $700 estimate when they said it was the flex plate. The total repair cost ended up being $952.00 when it changed to the torque converter. Aamco also replaced the shaft from the trany to the right CV axle. They picked up a used one for $55.00 after they said the bearing was bad. Funny thing is, there was no vibration at any speed. I am not sure what happened to the bearing..... I had to "negotiate" the price down to $952 from the over $1200. they wanted to charge for the repairs. I am satisfied with the repairs, paid too much but it works fine. 2late4u 1 Quote Link to comment Share on other sites More sharing options...
2late4u Posted September 4, 2020 Report Share Posted September 4, 2020 Flywheels are typically found on vehicles equipped with manual transmissions, while flexplates are used in vehicles with automatic transmissions. A manual transmission has a flywheel that is attached to the crankshaft and has a clutch disk in between the pressure plate and flywheel.................................................. What causes a Flexplate to break? Aside from a manufacturing defect, the only things that will cause a cracked flex plate are improper torque on the plate bolts at the crank and torque converter and the most common cause of transmission to engine misalignment; sometimes caused by missing alignment dowel pins that mate the transmission to the engine. ..........had to google flexplates thanks for posting your problem and what they found it to be....... Quote Link to comment Share on other sites More sharing options...
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