New truck shopping

They also had issues with the heads cracking and leaking coolant.

 

As a technician, I would recommend avoiding the cylinder deactivation engines. That system is trouble prone & leads to really pricey repairs. Just my .02 pennys worth.

 

I've replaced 2 of those engines since December. One was a Envoy Denali and the other was a Suburban. Both or nasty jobs, they Envoy was real nasty. I think it was a 23hr job flat rate for the Envoy and 17 or 18 for suburban.

 

The early 5.3 with AFM would also break the trans dipstick tube. When the engine cuts back to 4 cylinders it runs very rough. The have an updated dipstick tube with a foam sleeve for them.

 

That is all v8's except the Ford, Nissan, and yota. Those are the only ones that don't have cylinder deactivation.

 

The all have modern DOHC engines too.

 

The ram 5.7 is push rod.

 

The trucks in the post I quoted are all DOHC.

 

Yep, I don't know what I was thinking there. It's been a long day.

 

BIL trucks live cattle, absolutely hates cylinder deactivation. When trailer sways and you step on gas to straighten it out, the couple moments to get power were not appreciated.

 

The next gen GM cylinder deactivation looks like an even larger disaster in the making than the first one. Immediately crosses 1/2 ton GMs off my list.

 

As it should be...

 

ya get a little bit of lag on the turbos as well when you hit it. Not real bad but noticeable. When the variable vanes open up it's like someone hit the afterburners. Least wise that's the feeling I get from my little 2.5 gasser and the 6.0 oil burner ( deleted).

 

Lol

The only 1/2 tons I've has were 78 & 86 square bodies. Switched to Superduties after that. I dont tow really anything anymore though. I could use a truck for trash, firewood, and very limited boat towing. Comfort of a 1/2 ton ride is somehow becoming appealing, bit I still think I would die inside if I bought one.

 

It is a 16 Escape, trany can be full auto or manual shift ( with in limits) Manual shift is the sport mode changes the high rpm limits. I red lined it about a week ago avoiding an accident in progress ( my only choice or become a participant, not an option in my play book) semi blew 2 tires at the same time.

 

I was always skeptical of the system. Seems too complex for good longevity.
Does it vary the cylinders that deactivate? If not seems like. Retain components would have un even wear.

 

New generation has an electric water pump. What could possibly go wrong with that?

 

The "5.3" had been around in different forms for a long time. As you can tell, low information "car guys" lump them all together. From all aluminum, to cast iron gen III gen I've gen V. They are are all similar but so different I even forget it all.

The gen V, It uses a pretty cool dynamic cylinder mode. It no longer goes into a v4 mode. It can run on one cylinder and fire a different cylinder based on crank angle to stop vibration.
It's supposed to be pretty darn good.
It was developed by Tula then iirc bought or invested by Delphi.
It goes by the name dynamic skip fire or DSF.

I personally know quite a bit and have worked on alot of what you are claiming to have done.....

every toothless redneck has swapped a sacked out 500k mile 5.3 in his driveway in half that time. I've done it in 3hrs. There is a reason they are the most desired most popular swaped engine.

Can you link or show me the chilton flat rate guide? Gm flatrate guide?

BTW but I'm sure you know ....the envoy the entire body lifts off the frame just like a pickup bed... body bolts 3 harness connectors done........
Easy fast.... maybe you did it wrong.........

I've run an ew pump (several actually) they are better in every way. Less parasitic drag, higher flow rate more reliable...
You might want to look at the gen V lt-lt1-lt4 credentials before talking smack. They soon will be the most mustang swapped engine. just like the 5.3.

 

Lol, everyone knows you gotta put an LS in a Mustang if you wanna go fast!