Throttle Injection Cleaning

[fuzzynuke]

Coming up to my 72K Service, Hyundai Canada is recommending to do a Throttle Injection cleaning service for $189 + Tax.
Does this make sense for this price?
Thanks

 

[scottdk]

No, just follow what the owners manual says to do, NOT the dealer.

 

[STREETS]

For another $100 they can replace them new!

 

[GTech]

Stay far away. I wonder how they would even do that, seems like an anachronism from the old days of throttle body single injector systems.

Maybe they just pour a $5 bottle of fuel additive in the gas tank and call it a day. Either way, for sure, not needed.

 

[Mark_888]

If you really want to have it done, purchase a bottle of Chevron Techron from any auto-parts or discount store and follow the directions on the bottle. That is what your dealer would do for the $189.

 

[Jimmmmbo!]

I would ask them specifically what this cleaning process is, and the manufacturer requirement for it. Make 'em 'fess up.

With the amount of detergents in gasoline these days, even the cheap stuff, I'd have a hard time believing that a Genesis would ever need this cleaning.

Now if you're putting french fry oil in your tank ... oops, that's a VW forum.

 

[TJPark01]

Take $189 and buy you and your friends a nice dinner. The manual does not state that this service is necessary. The dealer is just trying to make it sound like your car has high miles and needs this.

 

[briando]

This seems like the place to ask this, i've posted on a couple different sites, i'm looking for opinions on Hyundai transmissions. is it better to do a flush or a drain and fill? any benefits or risks to either. any feedback is appreciated.

 

[TJPark01]

This seems like the place to ask this, i've posted on a couple different sites, i'm looking for opinions on Hyundai transmissions. is it better to do a flush or a drain and fill? any benefits or risks to either. any feedback is appreciated.

I can't speak for the V6 cause I'm not sure, but as it pertains to the ZF 6 speed found in V8 models 09-11, unless you plan on keeping this car forever, this type of preventative maintenance isn't necessary. Just try and go out and find the proprietary shell tranny oil for these cars and you are gonna be in for a surprise.

 

[Mark_888]

This seems like the place to ask this, i've posted on a couple different sites, i'm looking for opinions on Hyundai transmissions. is it better to do a flush or a drain and fill? any benefits or risks to either. any feedback is appreciated.

The 2009-2011 Genesis Sedan transmissions (ZF on 4.6, or Aisin on 3.8) both use synthetic transmission fluid (but different synthetic fluid specs) and are not designed for frequent or easy changing of the fluid. So I would say that, considering that they make if hard to change the fluid, and thereby discourage non-professionals from changing it, I would say there is risk of you doing either a drain or flush. These transmissions have a 10 year - 100K mile warranty (for original owner), and do not need to be serviced in that interval. I know that may be hard to believe, but have you ever owned a car that came factory fill with synthetic transmission fluid and had no transmission dipstick?

I would assume that the 2012 Hyundai built 8-speed transmission is the same with regard to difficulty in changing the fluid, but not sure.

______________________________

Help support this site so it can continue supporting you!

 

[yellow3.8track]

I have not used a fuel system "cleaner" in the coupe yet (only 8500 miles or so on it now).

When I got my 86 IROC Z28 it would start up, idle a little bit and shut off. The guy I bought it from said he's been told to have the fuel injectors "professionally cleaned" to correct that issue - it had 124,000 miles on it. I drove it home (2 hour drive) and the next day and for the next 3 or 4 tanks of gas I put a bottle of fuel injector cleaner in it. After the second or third bottle it stopped shutting off and the only time I've had that issue since is when I tried to run some Mobil premium gas through it. After the second fill up the engine would shut off just about anytime I let up on the gas pedal. Changing brand of gas and running a couple of bottles of fuel injector cleaner through it would once again eliminate the problem.

These days I run a bottle of fuel injector cleaner through all my vehicles about once a year.

 

[Mark_888]

I have not used a fuel system "cleaner" in the coupe yet (only 8500 miles or so on it now).

When I got my 86 IROC Z28 it would start up, idle a little bit and shut off. The guy I bought it from said he's been told to have the fuel injectors "professionally cleaned" to correct that issue - it had 124,000 miles on it. I drove it home (2 hour drive) and the next day and for the next 3 or 4 tanks of gas I put a bottle of fuel injector cleaner in it. After the second or third bottle it stopped shutting off and the only time I've had that issue since is when I tried to run some Mobil premium gas through it. After the second fill up the engine would shut off just about anytime I let up on the gas pedal. Changing brand of gas and running a couple of bottles of fuel injector cleaner through it would once again eliminate the problem.

These days I run a bottle of fuel injector cleaner through all my vehicles about once a year.

The difference between engine/throttle/injector/ECU technology between 1986 and 2012 is probably greater than the differences between the Model T and your 1986 IROC Z28. Things change.

 

[gray devil]

If you really want to have it done, purchase a bottle of Chevron Techron from any auto-parts or discount store and follow the directions on the bottle. That is what your dealer would do for the $189.

Just purchased a 4-pack yesterday at Sam's Club for less than $ 20. I'm going to use a bottle at each oil change and call it good. I'm sure it will be plently along with Texaco or Chevron gas which already as the additive.

 

[yellow3.8track]

Why are we suggesting using fuel system cleaner then? The mobil gas that gummed up my IROC was made just 3 or 4 years ago. After two separate experiences (the second to confirm it was mobil gas causing the issue) and finding the fuel injector system cleaner took care of the problem I can suggest fuel injector/fuel system cleaner as a possible "fix".

Today's gasoline may be cleaner that it was 20 or 30 years ago but it still leaves a certain amount of deposits in areas of the fuel system over time. Every liquid carries materials of some type(s) in it that settle out somewhere when flow slows/stops. Otherwise why would we need filters?

My old IROC does pretty good. Last time I had it on the highway at my speed I got 23 mpg and at the posted speed limit I got 27 mpg. In town I regularly got 20 to 21 mpg (the way I drive). Even the 305 TPI engines had more torque than the V6 engines in the Genesis and with the same weight the feel coming off the stoplight is that same until well after the posted speed limit. I kept my IROC because it runs and handles pretty good. How long will most folks here keep their Hyundais?

I always enjoy riding the folks with the mercedes, bmw's, etc. They sure pay a lot of money to ride around in something they won't run off and leave the old IROC in. Been there/done that too many times. However, I've reached the age were driving at or above twice the speed limit on the interstate isn't the thrill it used to be. Getting old sucks.

Arguing about whether or not new technology is better than old technology is like arguing about the 9mm vs. .45 acp, or the Glock vs. the 1911 or the M16 vs. the M14. As they used to say years ago when I still read gun magazines - that's a discussion that generates more heat than light.

 

[EXBMWGUY]

Why are we suggesting using fuel system cleaner then? The mobil gas that gummed up my IROC was made just 3 or 4 years ago. After two separate experiences (the second to confirm it was mobil gas causing the issue) and finding the fuel injector system cleaner took care of the problem I can suggest fuel injector/fuel system cleaner as a possible "fix".

Today's gasoline may be cleaner that it was 20 or 30 years ago but it still leaves a certain amount of deposits in areas of the fuel system over time. Every liquid carries materials of some type(s) in it that settle out somewhere when flow slows/stops. Otherwise why would we need filters?

My old IROC does pretty good. Last time I had it on the highway at my speed I got 23 mpg and at the posted speed limit I got 27 mpg. In town I regularly got 20 to 21 mpg (the way I drive). Even the 305 TPI engines had more torque than the V6 engines in the Genesis and with the same weight the feel coming off the stoplight is that same until well after the posted speed limit. I kept my IROC because it runs and handles pretty good. How long will most folks here keep their Hyundais?

I always enjoy riding the folks with the mercedes, bmw's, etc. They sure pay a lot of money to ride around in something they won't run off and leave the old IROC in. Been there/done that too many times. However, I've reached the age were driving at or above twice the speed limit on the interstate isn't the thrill it used to be. Getting old sucks.

Arguing about whether or not new technology is better than old technology is like arguing about the 9mm vs. .45 acp, or the Glock vs. the 1911 or the M16 vs. the M14. As they used to say years ago when I still read gun magazines - that's a discussion that generates more heat than light.

Age can provide perspective. I can remember running a 20 employee company using a single IBM 286 PC's Unlimited (predecessor to Dell) with DOS everything. Never had a problem. But there are trade offs, just like with modern fuel systems, fuel, and everything. OBTW, I prefer an XD(M).

 

[Mark_888]

Why are we suggesting using fuel system cleaner then? The mobil gas that gummed up my IROC was made just 3 or 4 years ago. After two separate experiences (the second to confirm it was mobil gas causing the issue) and finding the fuel injector system cleaner took care of the problem I can suggest fuel injector/fuel system cleaner as a possible "fix".

I don't have any objection to using fuel system cleaner, especially once in a while, but the issues with your IROC are not with the gas, but partially with the 1986 engine, and partially that the gas made today is not designed to work well in an 26 year old engine.

Today's gasoline may be cleaner that it was 20 or 30 years ago but it still leaves a certain amount of deposits in areas of the fuel system over time. Every liquid carries materials of some type(s) in it that settle out somewhere when flow slows/stops. Otherwise why would we need filters?

I never said today's gas is cleaner. I was talking about engine technology differences, and also (as mentioned above) that gas today is not designed to work well in a 26 year old engine.

My old IROC does pretty good. Last time I had it on the highway at my speed I got 23 mpg and at the posted speed limit I got 27 mpg. In town I regularly got 20 to 21 mpg (the way I drive). Even the 305 TPI engines had more torque than the V6 engines in the Genesis and with the same weight the feel coming off the stoplight is that same until well after the posted speed limit. I kept my IROC because it runs and handles pretty good. How long will most folks here keep their Hyundais?

I always enjoy riding the folks with the mercedes, bmw's, etc. They sure pay a lot of money to ride around in something they won't run off and leave the old IROC in. Been there/done that too many times. However, I've reached the age were driving at or above twice the speed limit on the interstate isn't the thrill it used to be. Getting old sucks.

Arguing about whether or not new technology is better than old technology is like arguing about the 9mm vs. .45 acp, or the Glock vs. the 1911 or the M16 vs. the M14. As they used to say years ago when I still read gun magazines - that's a discussion that generates more heat than light.

I am not going to get into any argument about older vs newer engine technology. Today's engines are cleaner (air pollution), get better gas mileage, and have more horsepower, require much less scheduled maintenance, and are much more reliable. Back in 1986 there was a big difference between engine manufacturers in terms of reliability, but those differences are much fewer today. There are very few cars today that fail to start the first time, every time, the ignition is turned on, even when the car gets older. But in the final analysis, it not just modern engine technology being better or worse, but being different than in 1986. The primary reason for this are improvements in computers used in the engine itself, and improvements in computers to design and manufacturer engines, and also outsourcing and sharing of technology among many manufacturers.

 

[Jimmmmbo!]

Why are we suggesting using fuel system cleaner then? The mobil gas that gummed up my IROC was made just 3 or 4 years ago. After two separate experiences (the second to confirm it was mobil gas causing the issue) and finding the fuel injector system cleaner took care of the problem I can suggest fuel injector/fuel system cleaner as a possible "fix".

I ran my 87 Trans Am GTA 305 TPI for 115K, and never once experienced the problem you have.

Let us know how that intake manifold gasket holds out for you over time. Design flaw in the aluminum manifold mating to the steel block. Been there, done that more than once. This could be the cause of your problems to begin with; the original owner may have had this problem. Coolant getting into the engine oil can easily gunk up the TPI system that no amount of off-the-shelf fuel cleaner will eliminate, causing the idling problems with your IROC.

You're covering up a problem, not solving it. That's fine if it works for your IROC's unique application, but that's a long way from applying it as a general rule to a new car.

 

[yellow3.8track]

guys, my IROC has right at 185,000 miles on it and runs like a top. On today's gas. Believe it or not, the lead has been out of gas for a lot longer than since 1986. Even my 81 Z28 runs good on today's gas. Don't wish problems on me.

I hope my Genesis Coupe lasts as long, looks as good and runs as good when its almost 26 years old with almost 200,000 miles on it. Though I doubt I'll be driving it much when I'm in my 80's, but you never know.

If the intake gaskets haven't given up in 26 years I figure I couldn't complain now if they did. If I was getting water in the oil or gas I'd know it.

The coupe is fun to drive. It lacks the torque of the larger displacement V8 but when it wakes up at around 4000 rpm it suddenly "finds" more torque. Its all good. Fun is fun.

 

[STREETS]

Saweet Springfield Armory piece! Have my eye on that one- 9mm or 40S&W

 

[fuzzynuke]

Thanks guys, you saved me a bunch!