I have a 2003 Toyota Sequoia that I purchased new with only 96,541 gentle miles on the clock. I had it stored for 7 years when the wife could no longer drive it. I recently got it out and replaced the tires, had the engine serviced and figured I should replace the spark plugs and maybe the fuel injectors as according to the dealer, spark plugs and injectors are suppossed to be replaced every 100,000 miles. Spark plugs not a big problem but the fuel injectors are $250 EACH at toyota dealer!! Chit, that is $2,180 for 8 injectors!!

 Does anyone know if there are cleaners that clean injectors after removal from engine,,,,,?? Dealer wants $350 to "Flush" injectors,,,,

I agree with Shameless that a lot of this stuff is junk, but I have had awesome luck with Seafoam cleaning up dirty carburetors. For the little bit it costs, I would certainly try it.

I don't know anything about your area, but A lot of the mechanics that work at our local dealers, kind of scare me. The only thing I have found most are good at is charging and making excuses why there is still a problem after they finish working on it. It seems like it is always "that didn't work, so it must be this".

I would try Seafoam and if it doesn't work, I would look for a local mechanic with a good reputation.

 Well, I have heard of Seafoam and am going to read up some more on it alltho I ain't got too much hope it would replace mechanical cleaning,,,,???

 I KNOW I ain't gonna give the dealer $350 for a procedure that they DO NOT know AFTER they do the "flushing" because my take is that if you don't have a "LOOK" after the  flushing,,,it's anybody's guess how good a job they actually did. The Service manager flat told me they DO NOT remove the injectors from engine unless they are scheduled to be replaced!

 I seem to remember when fuel injectors first hit the industry, there were some small  "Mechanical cleaners" that CLEANED them one at a time altho were later replaced by the process to "flush" them while still in engine,,,,??

    Hey Dave H,, the engine runs fine but after the 7 year storage, and a recent multi thousand mile trip,, the fuel economy has obviously  suffered from what it was prior to,,,,?

Never heard of replacing the injectors as a maintenance item.

 Hey Fixer,,,NO,,I ain't gonna "replace" them,,I just want to KNOW they are clean for optimum performance. I'll prolly go ahead and change the spark plugs as I have already bought them and try a double dose of Seafoam and re-check MPG again,,,?

Stretch it out or a period of time.

Put in what the can says a couple of times.

If you are a you-tuber, check out Car Wizard.  He loves Toyotas   and did a recent video on a 02 Sequoia with almost 400,000 miles on it.  He's located just outside of Wichita & gets vehicles in there from all over the country.  Those V 8's will suck some gas.

Any way I got Mazda truck about the same vintage. Back 10 years it was missing on one an it had 120,xxx on it.  So I pulled a plug WHOA the electrode was burned off that sucker. How it ran was a wonder. Now my FIL had bought it used, and made my son a deal on it when Grandpa had to stop driving for heath reasons. Son had it service at Quicky Lub kind of place, that may not of even changed the oil. It came to me with a bad transmission.

Did the plugs and wires and it was better for a day or so. Needed a tire that was a 100 miles away.  Got 50 or 60 miles and the miss was back, what the hay kept going as I needed the big tire. Made it fine. Took it to the professional bad injector. Replace that one and, see was happens was his advice. He even gave a discount from estimate,   as he says it is the easiest to get of all 6.  So far at 180,000 the other injectors still work.

It just passed the Caly smog test. And made me think a computer fuel injection must be a real big improvement over a carb and non computer distributor.

Stop worrying about problems you don't have yet. But Seafoam or other could clean it up. Did wonders for a Wisconsin V4 that sat a long time.

  Ten four Fixer and Dennis, I'ma  go with the Seafoan as per instructions, plus the new plugs as the Toyota Service manager was very adament on new plugs at 100,000 miles. Thank all of ya'll for the info,,,,,,

Dump a can of injector cleaner in the tank.

Works great for GDI engines. Valves get really cruded up moving the injector to the cylinder instead of ahead of the intake valve.

Does good for the conventional FI engines too.

Use it on Ford 3 valves to knock the chit off the plugs so as to not break the SOB off getting it out.

Well, I finally got back to bailing the Sequoia out for some service req'd as per Toyota and glad I did,!! I do believe I got my money's worth on these spark plugs,,,, The gaps as pulled were .080 and were susspossed to be .032,,!! Got one 16 oz can of Seafoam in  tank with 18 gallons of fuel, so we'll see how it works out. Many Thanks for all the help, Guys.

Fixing to take another road trip soon,,but ain't told ole Thad ,,,,,,,,,,,,,,yet

 Must be getting hitched this trip  

  Hey Thad,,I got a quart of the MMO coming as nobody in this little ole burg had any,,,but just putting new plugs made a heck of a difference in the way engine sounds as well as the get up and go at stop signs chirped the caissons a time or two already,,,,

 WQell,,it has been SOOoo dang COLD here the last 2-3 days with Overcast all day and cold wind blowing was 42° this morning with about 30 MPH winds,,,too friggin cold for this Southern boy,,,,to be working outside,

 Up until it turned cold I had got the garage doors cleared and ready to move Ole Red out but was so cold ,,decided to wait for better weather,,,I;m thinking ole Jay been leaving those Canadian gates wide open on purpose,,,,,,