from personal experiance put new o-rings on...when i did my plenu i used the same ones, and i had gas spraying everywhere when i started it. PLEASE be sure to do this, it woud be a PITA to have to take them out again just to replace the o-rings

and honestly i know i had a majority of the "joking" comments, and i didnt mean to offend to be a jerk in any way. just havin a little fun. Ill pull up the blinker fluid thread if you want so you can see what people said to this...its just a little fun, no hard feelings

 

+1 on the vaseline! Don't even use it, just use motor oil, or Sil-Glyde.

 

They are getting new orings at the shop since they are doing a full rebuild. Ok when I put them on I need to use motor oil. How much? Probably not too much right?

 

Doesn't really matter how much if you use motor oil, you just want to lube them up like an oil filter gasket. Just makes it a lot easier to install them.

 

I can clean those for you if you want. What you need to do is be real careful with fuel injectors and don't go poking into them. Those little filters are somewhat fragile and what can happen is, they end up tearing and end up stuck inside the valve thus ruining them.

At that point, we would have to take them apart, and your looking at rebuilding them. We can also rebuild them if you want. PM me for details.

If your looking for new, it's very expensive and, the ONLY injectors on the market that are any good are the OEM Bosch style injectors. Accel are cheap as they are made by Lucas and have poor atomization as well as not being matched sets. Thus, you end up with one or two rich injectors and some being lean flowing. They should not be used in my opinion. We have seen worse though.

Anyway, in order to clean those, your not going to be cleaning them 100% while on the truck nor with any ultrasonic cleaner and Techron. That is also dangerous due to having open fuel and an ignition source. Whomever came up with that recommendation / method I don't know but, I will tell you that it is not safe nor effective in cleaning the valve at the inside of the injector for that matter.

The proper way to clean them is to remove them from the vehicle and asses them on a machine. They are checked mechanically and electrically. After they pass, they are placed on a cleaning machine which cycles them on and off just like when run on a car along with running very high pressure cleaner and forcing out the debris. This pressure is much higher than 50 psi (fuel pump output).

Once they are run through and cleaned out, we then verify flow rate, and rating to OEM spec.

NOTE: NEVER USE VASELINE ON FUEL INJECTORS. THIS IS A DEFINITE - NO-NO. I have mentioned this before, but, since you don't know, I will tell you why. It's viscosity is not able to flow like fuel, and, some of those types of jellies contain wax as well as other thickeners. It ends up clogging up inside thus ruining them. The only way to fix this is to take them apart and physically remove it.

Ok, back to your situation:

Only three months of sitting would not cause a no-start condition. Even with the baskets loaded with sludge and fuel deposits, in my opinion, it would not cause a no-start condition. While I do believe for certain that it would run poorly and misfire like mad, I think you may have something else going on.

Like someone else stated (and others) before going to the finer details (such as EFI components) check your ignition first. Verify you have spark. Also, check your fuel pump relay and your ASD relay and verify that all three relays and fuses are in proper working order.

It is quite possible that your still not getting proper fuel pressure despite the pump change. Low PSI will cause a no-start condition. Attach a pressure guage and verify that your pressure is around 50 psi. OEM spec was 50 psi ±5 psi for certain years.

Start with that vs. just seeing if gas comes out. Gas coming out doesn't always mean it's reaching OEM rated fuel pressure.

I would start by verifying the fuel pressure followed by checking for spark.

 

Oh, forgot to tell you to check your fuel rails. If they have that many miles on them, and, they have gone unused for three months, they may have rusted out inside. I had this happen to me.

When, they sit for that long, condensation builds up during the night and, during the day when it warms up. Even with fuel inside, the water in the fuel will become higher over time thus causing them to rust badly.

The rust flakes off and ends up in the injectors thus clogging them. It's the finer particulates that do the most damage. I went through this with two sets until I thought about it and decided to remove the rails and have a look inside. Sure enough, they were goners. The OEM rails are cold rolled steel that feature a very thin protective layer on the inside. Over time, the base metal bleeds through this layer and begins to rust.

If you find them rusted, you have a few options:

A: Buy new OEM rails for around 400-650 bucks depending on whose doing the selling.

B: Buy an epoxy kit and coat them. Take them to a machine shop where they place them in a tumbler with aggregate. Then, take them into an U/S aggregate to clean the inside followed by a hot bath. Bake them dry and coat them with epoxy. I have a kit if you need one.

C: Aluminum rails: Depending on the year, you will have to have them custom made along with custom mounting hardware.

 

Thanks but I already had them rebuilt and 4 of them were completely clogged and fuel wouldn't even come out.

 

lol thats what I thought too.... that looking in post had me wondering....

 

as I remember you got pretty upset about it at first.....I think you even edited your responses and apologized later about it...
I have to admit this thread does seem a bit harsh.... but its a tough crowd here....afterall its the pickup truck forum not a bmw forum and their just living up to the truck driving tough guy stereo types they are influenced by......JK see the last statement makes it all ok cause I said just kidding
All that being said I do think the op jumped the gun.....he could have just spayed starting fluid while someone turned it over to see if it tries to fire and that would tell him if its still a fuel related issue as weel as just checking for wet/dry plug....

 

when i first started getting bashed on yes i was upset, for i was a newbie, and thats not a way you want to be welcomed, i later thought it was funny since im a mechanic lol. but i should have taken into consideration of what happened to me, that i shouldnt have done it to you...


by the way, how much is the fuel injector rebuilt costing? if its cheaper than buying new ones i might look into it.