Has anyone have to have this replaced? Someone told me to replace it at 140,000 miles because they have a history of going bad at that mileage and if that happens than a $500 module replacement possibly becomes a $2000 transmission fix.

He said if you replace it I will get 200,000 miles out the transmission.

I have a 137000 miles on my 2007 lt1 and wondering if this would be a good PM move on my part.

TIA.

 

Never heard that before from anyone.

The TCM does just that, it Controls the transmission while interacting with the other interrelated powertrain modules. A failing TCM can give you hard shifts, as can a half dozen other faults that come to mind.

So I suppose that driving about for tens of thousands of miles with a bad module could lead to failure of the transmission, it's nothing that needs to be changed out on a time/mileage related basis.

It sounds like someone trying to sell you an expensive part($500 ?!?) + a line of B.S.

The best way to keep your 4T-45E transmission happy is to follow the maintenance schedule in your owner's manual. Or as a lot of us geezers do, service the transmission every 30,000-50,000 miles.

 

X2 clean trans fluid and filter every 50,000 is well worth the time and effort, take it from us with the personal experience with these trucklets

 

$500 for an HHR TCM?? I've seen AC Delco factory replacement units for as low as $60 on Amazon and never more than about $135 anywhere else. And that's for a new (not rebuilt) unit. Even allowing for programming/labor it would be well under $500.

 

A brand new scam.

 

thanks guys

 

didn't Roger Ramjet battle the Solenoid Robots with Lance Crossfire back in the '60 s. they were here to take over the world, now just your wallet!!!

 

I remember Roger Ramjet (and his Eagles-Yank, Doodle, Dan and Dee). They lived about three hours away in Lompoc, California.