How do we feel about a "Fuel induction service" on the recalled engines?

[djsassan]

I'm the guy that had a 2021 which blew two engines, then got a 2023 as a replacement which subsequently blew the engine less than 10k miles in. The truck is now at 26k miles (16k on the new engine) and it passed.

While in service, it was suggested I get "fuel induction service" completed. It feels more like a wallet flush, HOWEVER with everything that has gone on with these engines, I am kinda tempted to go ahead and do it. Maybe I will wait until the next oil change, but it doesn't seem like a bad idea to do. Cost is around $200, and yes I can probably do it myself for a fraction of the price.

Thoughts? I did some searching and found only one other thread about this topic but it is from before the recall and shifted to a different area anyways.

 

[swathdiver]

I don't think you have anywhere near enough miles yet to NEED that unless you are pumping aboard 87 octane swill all the time. Your owner's manual doesn't call for it, right?

Since we only burn Chevron's 93 and E85 all the time, we don't need bottles of Techron in the gas tank but we do clean the throttle body and MAF once a year with this little kit as we still have the PCV system active without a catch can.

 

[DoubleDingo]

I use motor purr, but same concept, clean the innards

 

[B-train]

I have 177K on a DI 6.2L and have only once used Sea Foam DI cleaner. I don't see the value in it......especially from a stealership.....and that's ASSUMING they do it right. You'll be fine, just keep the oil and filters clean and move on with life.

 

[PPK_]

I'm the guy that had a 2021 which blew two engines, then got a 2023 as a replacement which subsequently blew the engine less than 10k miles in. The truck is now at 26k miles (16k on the new engine) and it passed.

While in service, it was suggested I get "fuel induction service" completed. It feels more like a wallet flush, HOWEVER with everything that has gone on with these engines, I am kinda tempted to go ahead and do it. Maybe I will wait until the next oil change, but it doesn't seem like a bad idea to do. Cost is around $200, and yes I can probably do it myself for a fraction of the price.

Thoughts? I did some searching and found only one other thread about this topic but it is from before the recall and shifted to a different area anyways.

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Lifter failure in GM's LS and LT engines is a known issue, but what if we told you it wasn't hppening just because the lifters are bad.

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I would. I noticed my engine not idling perfectly.. i think this is where the intake valves are not closing like they should that is they are coked up.. on the stem.

 

[Z15]

IMO all this is another over-priced money making scheme by the dealer. But heck, if you want to throw money away, go for it. The dealer is going to try to get every dime they can from their customers, to them you are money in the bank if you are gullible enough to buy into their scheme's.

Fuel injector cleaning is recommended only when performed as directed in Service Information diagnostic procedures. However, to address the variation in fuel quality in different areas of the country, the only preventative maintenance currently endorsed by GM regarding its gasoline engine fuel systems is the use of GM Fuel System Treatment PLUS added to a tank of fuel at each oil change. The fuel additive is to help with the prevention and removal of deposits from spark-ignited engines, particularly from the intake valves, fuel injectors, and the combustion chamber.

 

[swathdiver]

My aunt is in her 80s and took her 3 year old Kia with 6K miles into the dealer for an oil change the other day. They asked her credit score and told her she needed all kinds of work done. She spent the money and financed it all! It was a six month loan financed by Kia. My mother called the dealership and raged them but the thieving was already done.

If memory serves they charged her about $1200.

I know they did a top end cleaning, cabin filter, oil change, air filter and don't know what else.

 

[Fless]

What specifically do they tell you is done during this service?

 

[DoubleDingo]

My aunt is in her 80s and took her 3 year old Kia with 6K miles into the dealer for an oil change the other day. They asked her credit score and told her she needed all kinds of work done. She spent the money and financed it all! It was a six month loan financed by Kia. My mother called the dealership and raged them but the thieving was already done.

If memory serves they charged her about $1200.

I know they did a top end cleaning, cabin filter, oil change, air filter and don't know what else.

My grandpa always got the little old ladies bringing their cars to him for service. Really all he did was take it out to a road on the outskirts of town and floor it to blow off all the carbon build-up. Do that a few times along with an oil change and other items the vehicle needed, and the ladies were happy as can be because their car ran great again. No thievery, just a good honest man helping the community. We need more honest people out there.

 

[jfoj]

Really just a profit center for the dealer.

Spend the money on a decent Catch Can and empty it every oil change.

JL Catch Can is a extremely easy unit to install, 10 mm socket and extension and ratchet and about 10 minutes. This will go way further helping the intake path out over time, why not just try to keep the intake path clean rather than allowing it to get dirty then try to clean it up??

 

[Marky Dissod]

(Multi-Port-) Injected engines spray fuel at the back of the open intake valve during the suck stroke.
In other words, fuel injector / system cleaner also cleans the back of the intake valve.

Direct-Injected engines spray fuel directly into the combustion chamber, nowhere near the back of the CLOSED intake valve, during the squeeze stroke.
Besides the injector itself, what could fuel injector / system cleaner clean inside the engine?

Direct-Injected engines NEED catch cans even moreso than port-injected engines.

 

[PG01]

My grandpa always got the little old ladies bringing their cars to him for service. Really all he did was take it out to a road on the outskirts of town and floor it to blow off all the carbon build-up. Do that a few times along with an oil change and other items the vehicle needed, and the ladies were happy as can be because their car ran great again. No thievery, just a good honest man helping the community. We need more honest people out there.

You know what thats called right? An Italian tune up…

 

[djsassan]

What specifically do they tell you is done during this service?

So I curious and pushed this, as I have a great relationship with my service advisor.


They disconnect the fuel line, run at high rpm, completely deep clean into throttle body, etc etc. It's not just a chemical and go type of service. He said the vehicles he has seen done blow off a decent amount of white smoke and seem to idle smoother after service, granted these are vehicles with 60k+ miles on them. My engine has 15k, so no need but I my give it a whirl at 25k and see if I notice a difference. A less than $200 test to get the knowledge and share with people.

 

[Coveman]

Back in the day my dealership would remove carbon by pouring dot3 down the carburetor. I think we just charged for some brake fluid. Smoked like a chimney of course but seemed to work, cars would diesel beforehand and seemed to run better afterwards

 

[Z15]

Catch can use caution..

 

[Marky Dissod]

Wait, WHAT?! Hownd'hell is a 'PCV oil catch can attached to engine in line with PCV system', a 'warranty block'?

 

[jfoj]

Like anything, EVERYONE tries to get out of covering warranty repairs.

For those that are scared off by this type of craziness, something like the JL Catch Can is a simple install and remove. You can pop off the quick connectors and install the original hard plastic line back in place if you are concerned about sending the vehicle into the dealer with a Catch Can.

I would rather have a catch can and catch as much oil as possible than to feed all of this vapor into the intake path to then pay for the dealer to remove the intake an walnut blast the intake valves.

 

[Z15]

Wait, WHAT?! Hownd'hell is a 'PCV oil catch can attached to engine in line with PCV system', a 'warranty block'?

The PCV system is a emissions control device. A poorly designed or maintained catch can will cause problems by restricting the engine's PCV system which can cause far worse problems than a little oil in the intake.

 

[15burban]

Besides the injector itself, what could fuel injector / system cleaner clean inside the engine?

The tops of the pistons.