Originally Posted by Tahoe4Life
Originally Posted by Patman
Originally Posted by JohnnyJohnson
When are they going to design FI that isn't CXXP?
The Corvette has had direct injection since 2014 and I haven't seen anyone on Corvette Forum reporting major carbon buildup issues at all. (or serious amounts of fuel dilution either)
Since 2015 the Tahoe,Yukon and Escalade [5.3&6.2] has had direct injection. Have not seen anyone on the any of the Tahoe-Yukon or Escalade forums reporting major carbon buildup either...or serious fuel dilution issues. A lot of those have way over 100K miles.
On the Silverado forums/Facebook pages I have seen carbon complaints (same engines). Just the other day a guy was trying remove a failed injector, he couldn't get it out, it was stuck in the head surrounded by carbon. He was asked about the valves...if they were covered in carbon...he said yes, very bad. Truck had 150,000 miles on it. Had to remove the entire head to get an injector out that should be removeable easily from the top.
There are also threads hundreds of pages long about catch cans and setup procedures.
There are fuel dilution threads as well, to go along with oil consumption and collapsed lifter threads.
But I look at it this way...that 5.3 direct injected engine is in probably more vehicles than any engine on the road right now. It's in the Sierra, the Silverado, the Tahoe, and Suburbans. I'm probably missing some, but the Silverado has been the second best selling vehicle in America the last five years, with something like 500,000 units sold per year. Add in the Sierra...another 200,000 and the Tahoe and Suburban...and you're looking at maybe 5,000,000 of these direct injected engines driving around on the roads today. So a few online threads aren't exactly scaring me, but I own one of these things so I'm a little concerned (just a bit). And I also keep in mind that a lot of these vehicles are abused as pickups....service vehicles, guys lifting and modding them, big tires, doing a little off roading. Some people pull a trailer with these things work trucks everyday. Some people plow with these things. So I try to keep it in perspective. Lol
Originally Posted by Patman
Originally Posted by JohnnyJohnson
When are they going to design FI that isn't CXXP?
The Corvette has had direct injection since 2014 and I haven't seen anyone on Corvette Forum reporting major carbon buildup issues at all. (or serious amounts of fuel dilution either)
Since 2015 the Tahoe,Yukon and Escalade [5.3&6.2] has had direct injection. Have not seen anyone on the any of the Tahoe-Yukon or Escalade forums reporting major carbon buildup either...or serious fuel dilution issues. A lot of those have way over 100K miles.
On the Silverado forums/Facebook pages I have seen carbon complaints (same engines). Just the other day a guy was trying remove a failed injector, he couldn't get it out, it was stuck in the head surrounded by carbon. He was asked about the valves...if they were covered in carbon...he said yes, very bad. Truck had 150,000 miles on it. Had to remove the entire head to get an injector out that should be removeable easily from the top.
There are also threads hundreds of pages long about catch cans and setup procedures.
There are fuel dilution threads as well, to go along with oil consumption and collapsed lifter threads.
But I look at it this way...that 5.3 direct injected engine is in probably more vehicles than any engine on the road right now. It's in the Sierra, the Silverado, the Tahoe, and Suburbans. I'm probably missing some, but the Silverado has been the second best selling vehicle in America the last five years, with something like 500,000 units sold per year. Add in the Sierra...another 200,000 and the Tahoe and Suburban...and you're looking at maybe 5,000,000 of these direct injected engines driving around on the roads today. So a few online threads aren't exactly scaring me, but I own one of these things so I'm a little concerned (just a bit). And I also keep in mind that a lot of these vehicles are abused as pickups....service vehicles, guys lifting and modding them, big tires, doing a little off roading. Some people pull a trailer with these things work trucks everyday. Some people plow with these things. So I try to keep it in perspective. Lol
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