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"Servicing The Injector Nozzles" - Meaning In Nigerian Context? - Car Talk (2) - Nairaland

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Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by jadakiss213(m): 12:05pm On Jan 22, 2013
Majesty202: , yea we do hv
really? u tell me
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Biggoozz: 12:07pm On Jan 22, 2013
@ Sienna, I have an AutoCare business that will sure interest you I want to propose to you seeing your pedigree. How do we communicate off this board?
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Immune1(m): 12:08pm On Jan 22, 2013
For early electronic fuel systems with larger injectors,that old system of using carburator cleaners really worked (especially in benz products).Most cases of backfiring in modern cars is somehow linked with injectors problems,so when mechanics suggest servicing injectors they might not always be trying to rip you off.Here in Nigeria injectors can easily get clogged,so one has to be careful.Very crucial points have been raised here with regards to how the process should be done;just that Nigerians will always try to find to cheaper and more 'feasible' alternatives.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by agohavivi(f): 12:27pm On Jan 22, 2013
My hussy always insists that I use an injector cleaner when refuelling. I did it for a while and stopped because I felt it was a waste since none of my friends or loved ones used it yet experienced no issues with their cars. After some time my car began to have trouble accelerating even when I hit the gas pedal to its end point the car wouldn't accelerate well. I told my hussy about it and he asked if I'd been using the injector cleaner. I lied that I always did yet he insisted that I hadn't been using it. Subsequently, i refuelled three times using the injector cleaner, to my surprise my acceleration improved greatly.
@ikenna: I'm concerned by your post. Are you of the opinion that I avoid using injector cleaner especially considering my experience?
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Ikenna351(m): 12:57pm On Jan 22, 2013
agoha_vivi: My hussy always insists that I use an injector cleaner when refuelling. I did it for a while and stopped because I felt it was a waste since none of my friends or loved ones used it yet experienced no issues with their cars. After some time my car began to have trouble accelerating even when I hit the gas pedal to its end point the car wouldn't accelerate well. I told my hussy about it and he asked if I'd been using the injector cleaner. I lied that I always did yet he insisted that I hadn't been using it. Subsequently, i refuelled three times using the injector cleaner, to my surprise my acceleration improved greatly.
@ikenna: I'm concerned by your post. Are you of the opinion that I avoid using injector cleaner especially considering my experience?



What your car is suffering from now is the so called acid you called injector cleaner.

When you switch off the engine, fuel will be trapped in the injector. But because of the bad chemical/acid you have introduced in the fuel system or mixed with the fuel, it will form some stuffs (like a residue or something) that will block or clog the tiny hole/nozzle via which fuel sprays into the intake manifold. But when you start the car again, the chemical will push off the stuff a little, and fuel will start flowing via the injectors again, even though not as its supposed to. Anytime you stopped using the acid, it will clogged the system, not only the injectors, hence the hesitation you are now experiencing when not using the so called cleaner.

Bad fuel injector cleaner affects intake valves in the cylinder head. When the engine cools off, it will form like a gum or adhessive on the valve seats, making the intake valves sticky, not to move freely next time the engine starts running. The issues bad injector cleaners bring starts immediately after the engine cools off. To avoid the issues, dont ever introduce it in your fuel system.

To the best of my knowledge, the Best Injector Clearner worldwide, so far, is Techron, a Chevron Product, mostly found in North American market. Unfortunately, you cant find it in Nigeria. A friend of mine in US sent one can of Techron to me from LA, last year as gift. But i have never had cause to use it. For the past 2 years, my car has never had clogged injectors issue. Once in a while, i would pull out the 6 injectors, leaving them attached to the fuel rails. I would check the spray pattern and would use the opportunity to check if any is having internal leak. And they would check out ok.

If you are the type that only refuel when your car dies on the road because of lack of fuel or you are the type that visits fuel stations only when fuel reserve tank warning lit on the instrument cluster, then prepare to be having issues with your injectors. If you are the type that enjoy pouring in every liquid with injector cleaner stamped on the label, be prepared too. You get what you asked for!

That your car is misfiring, hesitating or stalling, doesnt mean your injectors are bad. A lot of EFI components, when faulty, would do the same. Stop listening to those clowns!

If you change your fuel filter regulary and once in a while pull down your fuel tank and wash, dirt will have no business with your injectors. EFI fuel filter is not like the fuel carburetted engine car fuel filters. The EFI fuel filters are designed such that it can hardly pass dirt because of the nature of injectors. Only when your filter becomes clogged or so dirty that dirt will forcefully have their way to the injectors. Please, before you clean your fuel tank, when its off the car, remove the fuel sender first before the cleaning starts. It could get damaged in the tank while the cleaning is going on.

Ikenna.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Connoisseur(m): 1:09pm On Jan 22, 2013
Siena:

Wow. Bro, how much do you pay for this??

depends
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by tjskii(f): 1:16pm On Jan 22, 2013
Kai i really nid to get my mind outta the gutter,when i saw the topic twas somthin totally diff i had in mind tongue
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Nobody: 1:21pm On Jan 22, 2013
Most mechanics in Nigeria engage in trial by error method.
Any jerking off vehicle results in them servicing the nozzles.
They usually remove the injectors and spray a harsh varnish in order to clean the injectors.
At times they pull it off and sometimes it does not work. You may end up visiting ten workshops before some one manages to find the problem through trial by error method.
Cost of servicing nozzles range from 3000-5000k.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by OAM4J: 1:22pm On Jan 22, 2013
tjskii: Kai i really nid to get my mind outta the gutter,when i saw the topic twas somthin totally diff i had in mind tongue

I have no clue what was on your mind when you saw the topic. Can you share? grin
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by emelu(m): 1:26pm On Jan 22, 2013
@Sienna, pls a Nigerian mechanic cleaned d fuel filter inside my fuel tank by puncturing some holes at the body of the cloth-like filter. He claimed that he did that so as to ensure that dirts are cleaned. But since then I have been hearing a back-fire shooting sound each time I try to accelerate. The vehicle is Audi A4 1.8ltr engine, 4 plugs. Not turbo. Pls help me out cos the shooting sound is embarrasing.pls note that I have done the so called "injector servicing" to no avail.thanks a lot.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Ikenna351(m): 1:30pm On Jan 22, 2013
Ultrasonic injector cleaning is the best method, but not the only method. But it will give you a good result: good spray pattern. You also get to see if any of the injectors is having internal leak.

Carb cleaner can clean injector. But how that is done, is where the problem Nigerians are facing lies. Dont tell me that spraying the carb cleaner when injector is powered is enough to clean the injector, when the small filter on top of the Injector was not removed beforre the cleaning starts. The filter can be removed with a special tool designed for it. If the filter is too clogged that cleaning it wont help, replacement is the only option. In fact, the filters are meant to be replaced once they come out. Worse case, it can also be flushed from the bottom, for the cleaner to flow out from the other end. Am yet to see any of our clowns doing all these, which would have been an alternative to ultrasonic cleaning.

Injectors O-Rings (top & bottom), spacers and pintle caps, are supposed to be removed before the carb cleaner cleaning starts. And they are not supposed to go back in on the injectors after the cleaning. New ones should go in instead.

By the way, its wrong to power injectors directly from the battery terminals. The 12 volts from the battery may damage the injectors coil. The ECU supplies ground pulse to the injectors which is 5 volts (at least, thats what mine supplies). The best is to get a DC adapter and reduce the volts, then power it off the car.

All I have explained above is a DIY thing.Something you can do yourself, to avoid series of nightmares after visiting the clowns for injector cleaning. But if you think that you are not upto it (which i dont believe), stay away from those chemicals and always make sure your fuel doesnt enter the reserve tank before you refill. The quality of fuel they sell in Nigeria is bad, yes, but am not sure that is the cause of clogged injectors here. Unless you want to tell me I have a Ghanian fuel station in my backyard where i buy fuel from. Otherwise, why havent i suffered the injector issues?

Ikenna.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by aieromon(m): 1:50pm On Jan 22, 2013
@Ikenna351

I belong to the class of people who "enjoy" driving on reserve tank. The fact that I've never had issues of this nature does not mean the habit is a good one.

I promise to change from now on.

Thanks

N.B I've never made use of an injector cleaner and don't hope to because I'm not convinced about the quality displayed in various fuel stations.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by BeingAkorede(m): 1:56pm On Jan 22, 2013
This is done by the specialist.
it involves removing and fixing its components; clean the element, d valve, spring and so on.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Syncan(m): 2:04pm On Jan 22, 2013
Quality stuff! Auto section is simply the best on NL
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by emelu(m): 2:08pm On Jan 22, 2013
Hi Ikenna, pls a Nigerian mechanic cleaned d fuel filter inside my fuel tank by puncturing some holes at the body of the cloth-like filter. He claimed that he did that so as to ensure that dirts are cleaned. But since then I have been hearing a back-fire shooting sound each time I try to accelerate. The vehicle is Audi A4 1.8ltr engine, 4 plugs. Not turbo. Pls help me out cos the shooting sound is embarrasing.pls note that I have done the so called "injector servicing" to no avail.thanks a lot
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by tjskii(f): 2:22pm On Jan 22, 2013
OAM4J:

I have no clue what was on your mind when you saw the topic. Can you share? grin

lipsrsealed lipsrsealed lipsrsealed cheesy
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by stagger: 2:26pm On Jan 22, 2013
Many of these mechanics are just the piss of the earth.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Nobody: 2:31pm On Jan 22, 2013
Biggoozz: @ Sienna, I have an AutoCare business that will sure interest you I want to propose to you seeing your pedigree. How do we communicate off this board?

My contact details are in my signature.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Nobody: 2:45pm On Jan 22, 2013
emelu: @Sienna, pls a Nigerian mechanic cleaned d fuel filter inside my fuel tank by puncturing some holes at the body of the cloth-like filter. He claimed that he did that so as to ensure that dirts are cleaned. But since then I have been hearing a back-fire shooting sound each time I try to accelerate. The vehicle is Audi A4 1.8ltr engine, 4 plugs. Not turbo. Pls help me out cos the shooting sound is embarrasing.pls note that I have done the so called "injector servicing" to no avail.thanks a lot.

Your "mechanic" has effectively rendered your injectors useless.

The gauze strainers actually prevents dirt from getting into your injectors. Pintle caps and filters are not fitted just to look good, they are essential for correct fuel metering. Pull your plugs, and you'll realise your fuel-burn has been affected, evident from the black tips.

The reason your car is misfiring, is because you no longer have a fine spray mist. Your injector needle valves are ruined, they are sticking, and have secondary leakage. The gas is literally spurting into your combustion chambers, much more than your engine can cope with at low to mid rpm. The only solution here is replacement injectors for the ADR engine.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by lokopet: 3:00pm On Jan 22, 2013
Tanx Oga Siena. Pls i have a 2001 nissan maxima, am a green horn in automobile. How do i resolve a sign that pops up on my dash board- supplemental airbag warning. i ve got scanning guys but could not resolve it. the car is working well but i dont know if the sign can affect the car.
08039429853
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Nobody: 3:07pm On Jan 22, 2013
lokopet: Tanx Oga Siena. Pls i have a 2001 nissan maxima, am a green horn in automobile. How do i resolve a sign that pops up on my dash board- supplemental airbag warning. i ve got scanning guys but could not resolve it. the car is working well but i dont know if the sign can affect the car.
08039429853

Please post the codes resulting from your scan.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by emelu(m): 3:24pm On Jan 22, 2013
Thanks a lot Sienna. I appreciate bro. Pls do after changing my Audi A4 injectors, do I still need to change the punctured cloth-like fuel filter inside the fuel tank?
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by mikeywise(m): 3:38pm On Jan 22, 2013
@IKENNA, please where can i get a car scanned here in abuja?
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Nobody: 4:18pm On Jan 22, 2013
emelu: Pls do after changing my Audi A4 injectors, do I still need to change the punctured cloth-like fuel filter inside the fuel tank?

Yes, you do.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by bibina: 4:24pm On Jan 22, 2013
Ikenna351: Injector Nozzles? You are making it difficult for them to understand. Nigerians call Injectors: NOZZLES, while they call throttle body: INJECTOR.

From my understanding, what Nigerians regard as servicing of nozzles is cleaning of injectors with carb cleaner. Some would simply spray carb cleaner on the two ends of the injectors, and thats all. Unfortunately, they end up damaging the O-rings, spacers & pintle caps, since carb cleaner is a rubber destroyer. A lot of cars have burnt to ashes after the so called injector servicing. Why? Because the carb cleaner will weaken the O-ring and will cause leak from those points, which will, with time, start dripping/leaking fuel on exhaust manifold from the upper injector O-ring. Most people dont even know that O-rings need to be replaced after pulling out the injectors, to prevent vacuum leak from those ends.

Am yet to find in Abuja where ultrasonic injector cleaning is been done, which is the best method of cleaning injectors. But then, are we sure that our injectors really need cleaning? Or because our clowns said so? Most of us are good at driving reserve tank or only refuel when the fuel warning light starts showing on our instrument clusters. Why wont the injectors get clogged!

Some of us are fond of buying and pouring in the fuel tank, anything that has "injector cleaner" stamp on a container, not knowing that those Acids they call injector cleaners will at the end clog the injectors. Not all of them are safe to even touch the valves, making them sticky.

I wish we all know how we are killing our cars, with our hands and money, out of ignorance.

Ikenna.

Ikenna, i have been following ur analysis on vehicles, it seems to me you have vast experience in this line. Kindly give me your contact number since you are resident in abuja as me. pls send the number to vessiet@yentech.com if you don't mind. i would like to meet you for some good advise concerning my 08 camry. tnx
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Ikenna351(m): 4:49pm On Jan 22, 2013
bibina:

Ikenna, i have been following ur analysis on vehicles, it seems to me you have vast experience in this line. Kindly give me your contact number since you are resident in abuja as me. pls send the number to vessiet@yentech.com if you don't mind. i would like to meet you for some good advise concerning my 08 camry. tnx

My contact is on my signature and profile (phone number & email).

Please, note that am not an auto mechanic, electrician or technician. Am just a car owner that enjoy fixing my car myself.

Ikenna.
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by eleven(m): 6:52pm On Jan 22, 2013
Woah...Its like this topic is discussing my current experience.

My CRV 2002 model suddenly developed a problem in July last year.

The problem is the car doesn't idle. When you put in the gear the RPM drops to zero and the engine goes off.

Also I can't drive it at holds up...its hell. The only time I can drive it is on a free way and the fuel consumption is very, very high.

I have dealt with different mechanics and rewires none have been able to successful solve the problem.

In July last year, one of the rewires change the Idle Air control valve which seems to work until December last year...between then and now I have bought 2 Idle air control valves without results.

It will work but after a day or 2 the fault will resurface.

They have serviced the noozle (or fuel injector) countless times without permanent success.

Infact they just returned the car today since yesterday washing the fuel tank and changing the fuel pump.

I am suppose to test it tomorrow to know if the problem still persist.

To be honest, I am dead tired...not too motivated to drive it but would try all the same with the hope that it works permanently this time around.

Here is a picture of the Idle air control valve changed twice now without permanent results

Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Ezeufi: 6:56pm On Jan 22, 2013
is that a nigerian for receiving a bloow joob?
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by pak: 7:51pm On Jan 22, 2013
@Ikenna,
I was quite surprised when you cautioned against the use of fuel injector cleaners. All along I've been told its a good practice to at least do so once a month so much so that I actually have a 'reserve' bottle in my car all the time.

First off, I travel a lot and I start to panic when my car passes the half tank line so I don't think I ever driven my car on reserve tank, not even during fuel scarcity.

two, I only use one type of injector cleaner, can't remember the name but its green in colour and I make sure I buy from NNPC mega station (in Jos) to avoid being sold fakes.

three, my fixation for that type of injector cleaner came over a year ago when I used the cleaner after buying a full tank. Believe me bro, I immediately noticed significant gains in fuel consumption and I wasn't just imagining things, I actually have a scan gauge fixed in my car that monitors fuel consumption in Km/ltrs for every trip. Right now, I have purchased a total fuel injector cleaner to be used on my next refill (since I can't get my preffered choice).


Also, many of the sites I checked actually recommend periodic use of fuel injector cleaners like the one below
http://fuelinjectorcleaninginfo.com/


Please will you care to shed more light on your stance for the education of forum memebers
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by laidback(m): 8:54pm On Jan 22, 2013
1
Re: "Servicing The Injector Nozzles" - Meaning In Nigerian Context? by Ikenna351(m): 9:05pm On Jan 22, 2013
eleven: Woah...Its like this topic is discussing my current experience.

My CRV 2002 model suddenly developed a problem in July last year.

The problem is the car doesn't idle. When you put in the gear the RPM drops to zero and the engine goes off.

Also I can't drive it at holds up...its hell. The only time I can drive it is on a free way and the fuel consumption is very, very high.

I have dealt with different mechanics and rewires none have been able to successful solve the problem.

In July last year, one of the rewires change the Idle Air control valve which seems to work until December last year...between then and now I have bought 2 Idle air control valves without results.

It will work but after a day or 2 the fault will resurface.

They have serviced the noozle (or fuel injector) countless times without permanent success.

Infact they just returned the car today since yesterday washing the fuel tank and changing the fuel pump.

I am suppose to test it tomorrow to know if the problem still persist.

To be honest, I am dead tired...not too motivated to drive it but would try all the same with the hope that it works permanently this time around.

Here is a picture of the Idle air control valve changed twice now without permanent results

So much waste of money!

IAC ( Idle Air Control Valve) are not usually replaced. Cleaning it with carb cleaner would bring back to life.

Oil residue from crankcase, via oil filler cap or cylinder head, would always accumulate in the IAC. After a long time, the oil residue will make the valve inside the IAC to become sticky. Thats why the car would stall immediately deacceletate or apply brake, since the solenoid is no longer supplying enough air into the intake manifold, to maintain the idle or the load added to the engine like A/C. The valve inside the IAC would close and stopped air from passing through the IAC to the intake manifold, when you are accelerating. But as soon as you de-accelerate (stop accelerating), the valve would find it difficult to open because the oil residue will make it sticky. So the engine will lack air and goes off. The IAC knows when the car is accelerating via the work of TPS (Throttle Position sensor).

So, that clown should have cleaned the IAC with carb cleaner, allow it to dry, lubricate the valve inside, before re-installing it on the engine. Thats how i clean mine, and never had to replace it.

The problem with your vehicle could be IAC or other related components that would give such symptom when faulty, like MAF, leaky vacuum lines, etc. But did the clown checked to know why the IAC is clogging at that small space of time?

I would advice you run a scan.

Ikenna.

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