Lost my motor today

[CarlC]

Originally Posted by carkrazy1987

The low compression could be froma bad valve. I work for gm, on the heavyline side, and very rarely that stock engines loose pistons or block damage. I see more often on 4.8, 5.3, 6.0 is a valve seat burnt. I have 2 6.0 and a 5.3 with burnt valves on the floor nxt to my tool box. One actually has a burnt exh valve on cyl #7 lol. What I'm trying to get at, hopefully they did a leak down test also, and not just going on a compression, could save u money.

Thanks for the practical side of this. It's always good to know what the long-term weaknesses of a system are.

In that light, at 155k how is the overall condition of a well maintained 5.3 - 6.0 that sees little towing/heavy-duty use? My wifes '05 5.3 Silverado 1500 runs like a watch, does not burn oil, and has had zero problems, so I'm hesitant to sell it. The instrument gauges are another story.

[Flash68]

Originally Posted by CarlC

Thanks for the practical side of this. It's always good to know what the long-term weaknesses of a system are.

In that light, at 155k how is the overall condition of a well maintained 5.3 - 6.0 that sees little towing/heavy-duty use? My wifes '05 5.3 Silverado 1500 runs like a watch, does not burn oil, and has had zero problems, so I'm hesitant to sell it. The instrument gauges are another story.

Carl, your wife drives a truck? That's pretty tough...

[CarlC]

Originally Posted by Flash68

Carl, your wife drives a truck? That's pretty tough...

Better yet, my old work truck

[carkrazy1987]

They are very durable, the engines I pull out came from fleet trucks, that run 24 - 7. No joke, they put 100k in 3 months on these trucks in the cane field. They just rotate drivers at shift changes and keep going. The random valve spring or seat seems to be the most commen issue. As on street trucks, trucks with afm lifters have had burning oil issues. Depending on the truck, its a simple valve cover issue, or a splash shield in the oil pan. Not too many piston slap issues anymore. A well take care engine will outlast everything else on the truck. And I doubt the rear main was leaking, very rare that they do, most likely the oil pan/oil cooler to pan gskt. Hubs and water pumps are big problems after 100k. Besides that, tough trucks, and even tougher motors. Oh and the cluster, they fixed that by gettin rid of the pesky thing lol

[carkrazy1987]

And Wednesday?!? When did u give em the ok? That's a slow shop. Us, as long as u give us the ok by 4pm, u can have ur truck back round lunch next day lol.

[Track Junky]

Originally Posted by carkrazy1987

And Wednesday?!? When did u give em the ok? That's a slow shop. Us, as long as u give us the ok by 4pm, u can have ur truck back round lunch next day lol.

OK was given on a Saturday and they are a pretty busy shop. I went to the shop today and the motor had been delivered. I should have taken a pic. Looked so cute all wrapped up on its little pallet

[Track Junky]

Originally Posted by carkrazy1987

They are very durable, the engines I pull out came from fleet trucks, that run 24 - 7. No joke, they put 100k in 3 months on these trucks in the cane field. They just rotate drivers at shift changes and keep going. The random valve spring or seat seems to be the most commen issue. As on street trucks, trucks with afm lifters have had burning oil issues. Depending on the truck, its a simple valve cover issue, or a splash shield in the oil pan. Not too many piston slap issues anymore. A well take care engine will outlast everything else on the truck. And I doubt the rear main was leaking, very rare that they do, most likely the oil pan/oil cooler to pan gskt. Hubs and water pumps are big problems after 100k. Besides that, tough trucks, and even tougher motors. Oh and the cluster, they fixed that by gettin rid of the pesky thing lol

Thanks for the info. I was told this one shouldn't have the piston slap issue but we'll see.

[Efi69Cam]

Originally Posted by CarlC

Thanks for the practical side of this. It's always good to know what the long-term weaknesses of a system are.

In that light, at 155k how is the overall condition of a well maintained 5.3 - 6.0 that sees little towing/heavy-duty use? My wifes '05 5.3 Silverado 1500 runs like a watch, does not burn oil, and has had zero problems, so I'm hesitant to sell it. The instrument gauges are another story.

I had the stepper motors in my wife's 2003 Suburban cluster replaced by a local speedometer shop. Cost less than $200.

[CarlC]

Originally Posted by Efi69Cam

I had the stepper motors in my wife's 2003 Suburban cluster replaced by a local speedometer shop. Cost less than $200.

$30 for all of the stepper motors for every gauge on Ebay and one hour (seriously) labor. It's a super-simple repair.

[Track Junky]

So I got my truck back last night at 7:30 p.m.. The new GM long block 6.0's per like a kitten with no piston slap.