Torque converter?
Thread Starter
Joined: 06-12-2014
Posts: 6
From: Brookville, KS
Torque converter?
Hi, I am new here and wanted to see if any other owners were having the same problem I am. I own a 2007 HHR, 2.2L that has started "surging", that is the only way I can describe it. Started about a month ago at speeds of 25 to 40 MPH, you could feel it surging a bit and as I watched, the RPMs increased a bit. Now it does it when I have the cruise control engaged also, again the RPMs increase. Mechanics say the torque converter pulley is working correctly, but it is getting the wrong message from the tranny.....they want to pull the tranny and see what is wrong. There are no codes coming up during diagnostics. Any ideas or has anyone else has this 'surging' problem?
Thanks for any help offered.
Thanks for any help offered.
Deceased
Joined: 06-30-2010
Posts: 25,739
From: Kannapolis NC
They probably mean "Torque Converter Lock-Up Clutch", and if it's receiving a command from the TCM to "Lock-Up" at speeds below the normal range, you'll get a surging "Chuggle" as GM used to refer to it.
As Don stated, you're best bet is a second opinion.
As Don stated, you're best bet is a second opinion.
Last edited by 843de; Jun 14, 2014 at 10:56 PM.
Deceased
Joined: 06-30-2010
Posts: 25,739
From: Kannapolis NC
The first time I recall seeing "Chuggle" in print was in the FSM for my Uncle's 1982 Chevrolet Celebrity.
It's a term that GM engineers came up with around the time of the first electronic engine controls and the dreaded "Feedback" carbs.
In the 70's, mechanics used to refer to the condition as a "Fish Bite", especially when referring to a misfire condition.
It's a term that GM engineers came up with around the time of the first electronic engine controls and the dreaded "Feedback" carbs.
In the 70's, mechanics used to refer to the condition as a "Fish Bite", especially when referring to a misfire condition.
Administrator
Joined: 10-13-2011
Posts: 40,083
From: Welland,Ont Canada
Welcome to the site, just for fun please try this, go to Autozone and have the codes read, write the codes down.
Disconnect the battery negative terminal for 30 minutes to rest the computer.
Drive the car and see when the CEL comes on.
Get the codes pulled again , use the search window , enter in the code
Disconnect the battery negative terminal for 30 minutes to rest the computer.
Drive the car and see when the CEL comes on.
Get the codes pulled again , use the search window , enter in the code
