dealership fuel injection service

[johnk45]

Today was the secomd time in 5000 miles i have gome in to get a recall done on my 2014 Sierra 6.2 and the service writer tells me each time i really need to have the $145 fuel injection service done. my truck has just over 20,000 on it and runs great. Has any one done this service before or know if its completely necessary? i run fuel system cleaner through it every few months and mainly use supreme when I fuel up.

[reelbusy]

sounds like he gets a commission. I can't answer 100% but that being offered that is as common as dirty oil flushes. I say no to both, I'm sure most say yes to both of those and it's profitable which is why they ask you every time

 

and I'm sure when I'm dead and gone or no longer able to drive I still will never have had an actual dirty fuel injector

problem. I use whatever gas is close by in cars and boats. I'm sure to some small degree it's preventative and maybe measurable by the time the car is on it's 4th owner but who cares with all the other stuff breaking by then.

[johnk45]

ya thats true. I would like to hear what an actual gm mechanic would have to say about it outside the shop.

[reelbusy]

ya thats true. I would like to hear what an actual gm mechanic would have to say about it outside the shop.

 

 

 

I'm going to bet they say

 

"I made an extra 75 bucks today on fuel cleaning commission"=)

 

just joking I hope someone chimes in.

[Garykk]

Don't waste your money. If you are worried about a dirty injector, buy a bottle Lucas injector cleaner for about $8.

[KARNUT]

I don't believe in it and use top tier gas and a cleaner of my choice. But if it says so in the maintenance manual and something goes wrong there's their out. My and my wife's vehicles get their oil change at 3700 miles do to extreme service schedule in the manual. The service writer says I have to per manufacturer in my area. I hate it but if I have an engine failure I want it covered no excuses. Just follow the manual.

[DirtyMarcus]

If its not dirty don't "clean" it. Search youtube for various cheap ways to check fuel injectors for correct operation and how to back flush them yourself if you really need too.

[NoProblem]

I had it done at the dealer for $125.00+tax when I had just over 30,000 miles. Dealer recommends it every 30k miles.

 

I had the miles, I had the money, I had it done about 6000 miles ago and I never noticed any earth shaking difference in performance or gas mileage. I saw a big puff of white smoke come out of the tail pipe one and only one time - that was when I pulled out of the dealer's lot after having it done.

 

That is all.

[Z45]

People think of the service advisor as a mechanic but basically they are salesmen. A lot are even paid on commission and get bonus's for up selling. That means that the more work they convince you that your truck needs; the more money that it puts in their pockets and the dealer coffers.

 

Ask them how often they do it to their rides and then say “No Thanks”.

[Garykk]

People think of the service advisor as a mechanic but basically they are salesmen. A lot are even paid on commission and get bonus's for up selling. That means that the more work they convince you that your truck needs; the more money that it puts in their pockets and the dealer coffers.

 

Ask them how often they do it to their rides and then say “No Thanks”.

Correct, sometimes if you try to explain something to one of them in mechanic's terms you get a blank look:)

The dealer I go to goes through service writers like popcorn

[slj2008]

SAVE your money - Buy good gas & Seafoam it twice a year spring / winter . Never had a problem

[dorkweed]

Did they use lubricant??

[Pacfanweb]

Fuel system clean also cleans the air intake and throttle body, which putting cleaner in your tank will not do.

 

So it's helpful....at some point. 20k miles ain't that point, though.

[johnk45]

Definitely all good points guys. It just cracks me up when the first time they told me they recommend it every 15,000 miles (i was just over 15,000 at the time) and then the next time they said they recommend it every 20,000 (as i was just over 20,000). Definitely a bunch of salesmen. I talked to a buddy thats a general auto mechanic and he said it could be worth it since they hook it straight up to the rail or whatnot and pressure it up, so if something was in there it would help blow it out. But at 20,000 miles with having nothing but top grade fuel ran through it and various fuel system cleaners ran through, I dont see why I would need it this soon, although, every now and then after my truck has been sitting for most of the day on a day above 40 degrees F, when i start it, a small puff of blackish-grey smoke will come out. Any one else experience this with low miles? Its been doing it every now and then for over 5,000 miles, but the truck runs great, great fuel mileage as well. Let me know what everyone thinks. Thanks

[BIGDOGx]

Actually with these engines being direct injected the engine does benefit from a legit top end cleaner, not the stuff you put in the tank as that is wasteful because that cleaner will never see the top side of your valves which has shown to be an issue if left unchecked in these engines. Someone here pulled a head off a engine with 20,000 some odd miles on it and it looked like it had seen a 100+, the valves were filthy. It is also the reason why many here run oil catch cans to limit the oil that is reintroduced to the top side of the motor which leads to valve caking.