Had dealership perform fuel injector service today on my 2000 max with 45,000 miles. This made a huge difference power wise and responsiveness is very improved. It was a little pricey, around $150. But I still recommend this to anyone with similar mileage. I'm also going to watch to see if fuel economy is improved.

 

hmm sounds like something i should look into .. car does feel kind of slugish<<45,000+miles>>.. good maintenance and good gas don't seem to make it feel like it use too .. i think i might have this done..

thanks for the info.

 

Good to know. Between this and changing out the filter, it should be nice and thirsty! I need to do this. I've been slacking off just using bottles of Techron, and even that's an inprovement. Peace_

 

what is involved with this. is it a do it yourself job

 

No, it involves a self-contained machine thats pumps detergent thru your injectors for about an hour.

 

Jiffy Lube has injector cleaning for like $69 would that be the same thing?

 

Does Nissan do the same thing Jiffy Lube does?? Jiffy Lube offers a injection cleaning too but it only $54.99...

 

Nevermind.. I just called Jiffy Lube and they said they have the car on the mechine for 20 mins.. I guess thats the difference.. Do you really need it on the mechine for an hour??

 

Did you see them run it though the injectors for an hour?

Or does the stealership do the same thing as Jiffy Lube and just charge you for and hour?

I woould think that the stuff they run though is so concentrate that it would not take an hour.

thats just my .02

 

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The labor was like $110 and the bottle of solvent was $40. They cleaned the throttle body injectors and not sure what else. The engine sounds so much smoother, louder and responsive. I keep my car in pristine condition and I know my injectors had to be a little clogged. It now sounds and feels like the rocket ship I first purchased. Not sure if I would trust jiffy lube. They're not working on Max's all the time like the dealership. Very pricey but overall I highly recommend.

 

A local tire shop (bought new tires from them) has that service for $75... I may consider it soon (probably after changing the fuel filter around 50-60Kmi)

 

If you feel they can do it properly for cheaper then go for it. I personally want someone who has performed this process before many of times so there's no chance of a f@ck up.

 

That price seems reasonable for Nissan Dealerships, they use BG products and I beleive from what others have discussed the dealers use of a machine w/ the BG solvents. I tried this on a previous Nissan I had and it did wonders for it. Personally I would never trust Jiffy Lube to do stuff on our Max's, but that's another topic in another forum. But, yeah, our beloved Nissan dealerships use BG products in all thier services.

 

First try putting BG44K in your tank and cleaning the throttle body. If that doesn't work take it to a place the does the BG44K flush. BG44K is by FAR the BEST fuel system cleaner, but it comes at a high price. Usually up to $22 for a 12-16 ounce bottle.

 

My local Nissan dealer only charges $99.. I just called them.. The service rep said it takes a few hours to do...

 

What EXACTLY do they do to the injectors?

Do they remove them, pump some cleaner through them, and put them back?

I've never heard of this until lately.

 

I'd like to know too....maybe this might cure my pinging problem

 

I put in a bottle of Chevron's Pro-Guard injector cleaner (not Techron) at 30K and noticed a significant improvement in my 03's performance.

Impressed, I also put it in my wife's clunky Windstar, and behold, again a noticeable improvement.

I am suspicious of any additional dealer service not mentioned in the owner's manual and Jiffy Lubes in general. They teach classes to employees on how to overcharge. Part of orientation.

Don't know about BG44 or whatever. I don't put anything in my gas tank that's not manufactured by a company that makes gas.

 

Hmmm, I have almost 47k on mine. Maybe I should get it done too.

BTW, where did you get the Chevron cleaner?

 

I seriously doubt they remove the injectors, since they'd have to remove the intake manifold and that would take more then an hour or so MINIMUM.

What they probably do is remove the fuel lines on BOTH ends of the fuel rail and pump some chemicals through the injectors while cranking the engine.

Of course all that crap would then end up on the piston to be burned off once the engine is run.

I'd really like to know HOW a Jiffy Lube does anything other then pump a whole bunch of cleaner into the combustion chamber in only a "20 mins." cleaning.

 

00MaxSE,

I got the Chevron Pro-Guard injector cleaner at a Chevron gas station. On the shelf next to the Techron, very very similar looking bottle. Same price.

 

You can also pick up Chevron injector cleaners at Costco WholeSale for $9.75 or something for 4 bottles. Pretty good deal if you ask me.

 

$9.75 for four bottles?? I paid 9.99 for one at the gas station!!

 

and you are talking about nissan.........LOL

 

They must take the injectors out because they said they cleaned the throttle body also. I'm pretty sure they pump that solvent through it to get all the deposits out. Did help a lot though. Now I'm ready to add some performance mods next.

 

They do not remove the injectors. There is a super concentrated cleaner/detergent hooked up to the fuel rail(or can be introduced through the TB)and run through the engine. When it is hooked up to the car and running it appears as though someone had put diesel in the tank. The super rich mixture is run for I think 15 - 30 min, then the car is unhooked and allowed to idle and burn off any extra solvents. It is a bit more involved, but that is the jist of it.

 

I have this machine at work- lemme explain something how it works. Step one, U remove the fuel pump fuse and let the car run till it dies out- this reliefs any residual fuel pressure in the fuel rail. Then U remove the SUPPLY fuel line at the fuel rail and hook up the Pressure Fuel Injector cleaner to it. The Pressure Fuel Injector Cleaner (PFIC) device has a metal can on it and 2 gauges, and an air line fitting on it with a dial to dial in pressure U want. U dump the BG44K into the metal can in the PFIC, then hook up the air line to the PFIC and dial in the right amount of FUEL pressure- basically U are making your own fuel pump here, and U need to know what are the fuel pressure specs for your car to make sure the car runs smooth while its runing with the PFIC hooked up. The PFIC comes with diff addapters for all kinds of cars, but on a Max U cap off the fuel return line to the tank, and start it up and let it run till the injector cleaner, BG44K is out of the metal PFIC can. Car will die once its out of the injector cleaner. Also this stuff DE-carbonizes the combustion chamber, cleans valves, spark plugs, but it also dillutes the oil in the crank case. So after runing this stuff, U wanna have the oil changed. I used to use my injector cleaner machine all the time at Audi when I was working there. I **** U not the stuff worked AWESOME. My Maxima has 70K miles on it and I will be doing the injector cleaner service to it pretty soon, along with some other goodies ..... flywheel, clutch and UD pulley now that I got my R34 Skyline front end finished and my PFIC comes back from being serviced for new seals and all- just send it out this Thursday. BTW Snap On and Matco make this unit. Lemme find a link and I will post it here.

 

Here is a MATCO fuel injector cleaner device and how it looks....
http://www.matcotools.com/ProductImages/fit470a.jpg

Here is what the Matco website says about the machine ---
FUEL INJECTOR CANISTER CLEANER

• Enables you to check the vehicle fuel pressure with the bottom gauge and then easily set cleaning pressure with top gauge by referring to the vehicle fuel pressure on bottom gauge.
• Cleans fuel injectors restoring original spray pattern more effectively than aerosol methods.
• Improves performance, fuel economy and emissions tests.
• Cleans carbon from intake valves, fuel passages, and cylinders with a professional carbon cleaning solution.
• Uses shop air with any canister cleaning solution on the market.

I could technically do injector cleaning service for ya guys but, only local people- ILLIONIS, I also have scanners for OBD etc
FYI- 01-up Maximas do not have fuel filters.

 

At work we use BG Products (44K) to do our injector flushes. It is a metal container. You pour in the injector flush, hook up your shop air line to one end, and hook up the other end to the fuel line schrader valve. Then you pull the fuel pump relay and start up the engine, and it runs off the stuff in the container (the flush). It works pretty good, since it is super-concentrated, + BG pays a cash bonus for every injector flush our service writers sell (actually, any BG service.)

If you really want to see amazing try an "induction service", you won't believe all the junk that comes out of your tailpipe, its this foamy stuff that cleans out your intake and CCs.

 

I'd like to have this done on a non-Nissan vehicle. Anyone with shop recommendations around the CT area? Also, how much does this generally run? Thx.

 

Hmmm, well we don't have Chevron gas stations in Cleveland and I don't have a Cost-Co membership.

 

I brought the car in with a quarter of a tank of gas and when I got it back it was about empty.

 

I had the injector service and throttle body cleanning done (cost me over $200) and it didn't cure my ping problem. I changed out my ingition coils, and even that didn't cure the pinging. I had my timing set back a few degrees and I think that might have finally cured it. I've had the car back from the dealer for just a day and I haven't heard anything yet (I'm keeping my fingers crossed) The theory goes like this, becasue my car has a lot of miles on it (89K), the timing chain may have stretched a bit causing the timing to be off just enough to cause predetonation/misfires.

I hope that was the cause. Good luck!

 

thanks for the headsup

Have you had your spark plugs checked?

 

timing chain stretched ? hahahahaha, man which tech told ya that ? seriously these techs that work for nissan are just PART EXCHANGERS. When they work on the car they cross their fingers it fixes the problem. I worked for Nissan, and lemme tell ya a 300K mile SR20 engine will still be on its OE chain. So don't let them pull your chain aight ? Did U accutally see them clean the injectors ? I know lots of shady techs who never even do the serivce they where supposed to do- aka tire rotations, injector service, anything that is hard to pin point out if it has been done or not. Personally I never ever let anyone touch my car, the damn tech broke my V-belt tensioner cause I complained that the bearing is seizing up inside and its noisy(warranty still)- so he breaks off one of the mounting tabs on the block, now they need to pull the motor out to fix it. I got in my car and left, morons with no skills shouldn't fix cars. PERIOD. This is why I'm planing on opening my own shop cause I can't stand seeing how many people get ****-ed over on a repair that wasn't performed properly or even performed.

 

Yeah my plugs were changed about 9 months ago, so they should still be good.

 

Yeah, I don't really understand how a chain can stretch after only 4 years. Hence the reason for a timing CHAIN. Maybe my timing got jacked up some other way. I don't suppose I'll ever know. What's a non-techie like myself to do? Also, how can an individual check things like timing, etc.. when you can't get a hold of the right equipment to do so??

Ohh well, the joys of car ownership!

 

What BlackBIRDVQ said.

As for the TB clean I personally say just go to a Checker or AutoZone or whatever and pick yourself up a can of TB cleaner and do it your self. Its too damn costly at the dealer, but it does help response once again.

 

I may sound like I work for BG products the way I talk about them but the products they sell are not only used by almost all dealerships of all makes but many many other shops. Anything else you buy at an auto parts store is usless crap not fit for your lawn mower. Techron is about the only thing that comes close, and it's still not that close.

This is their commercial line, most of it is not sold to the public http://www.bgprod.com/bgprofessional.../autofuel.html

And this will help you find a shop near you that uses their products. http://www.bgfindashop.com/
I don't believe this is up to date though if you don't find one in your area call around. You don't need to go to the stealership to get this service done.