Friend with GMC 5.3 problem.

[deezler]

I'm late to the party here, but yes the range chips in the OBD2 port work great. Kind pricey for just that one feature though.

If I had such a truck, I would instead be buying an SCT BDX/X4 or diablo tuner and adding some horsepower and throttle response in addition to disabling the AFM/DFM. Plus getting more gauges and data from OBD2, ability to scan and clear DTCs, etc.

That pushrod is super bent! Crazy that the engine can keep running mostly fine with just a ticking noise.

 

[LittleBittyBigJohn]

I'll be the first with an almost unrelated, unhelpful post...

I had a 2013 Ram with the 5.7 Hemi. The same problem exists in them as well. On mine one of the on/off cylinder lifters failed and took out my cam as well as some other items. In my limited research I saw that the electronic disablers didn't completely cure the problem. The lifters can still fail since they are still able to collapse.

 

[dodge man]

He got the truck back today. Quick turnaround, he took it in last Friday. The final bill was a little over $5400.

 

[newbury]

5030
Epic Contributor · From SE Michigan in the middle of nowhere
Joined Feb 21, 2003
Last seen Today at 9:51 AM

 

[Sawyer Rob]

My 5.3 isn't high milage so maybe it doesn't count, but one of my friends bought one new some years ago and has over 300,000 trouble free miles on it. A second friend has one with over 8000 hours on it, many of them idling, and it also has not had ANY problems.

I suspect mine will be just fine too.

SR

 

[Sawyer Rob]

From SE Michigan in the middle of nowhere

There is no "middle of nowhere" in SE Michigan.

SR

 

[dodge man]

A few days ago I watched a video where he talked about the problems of the AFM on the 5.3 and 6.2 engines. He threw out a 3 to 4% failure rate. He said a normal failure rate for engines is less then 1%. So the AFM is roughly 4 times more likely to have a failure rate but 96% of the people still won’t have a problem.