LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

How I cleaned my injectors...

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Old Sep 15, 2007 | 06:06 PM
  #1  
raroz28's Avatar
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How I cleaned my injectors...

First I bought a set of fuel injector filters from mr injector on ebay, then removed all my filters from my current injectors.
Here is a link to his auction.

Then I bought a can of B12 Chemtool Fuel injector cleaner.

Put the injectors in a bucket and let them soak for a few days.


That was the second round. They soaked for a few days and the liquid was so full of crud, I dumped it and put some fresh stuff in.

Next, I put the injector in a vice, and ran test leads to each terminal. The socket is there to keep the brake cleaner from shooting all over me.


Now run each lead to a 9v battery. I wouldn't use a constant 12v source. I don't know if it'd be bad, but I'd rather run something smaller. Once it's connected you should hear it click, and the injector is now open.


Now shoot brake cleaner down the injector. I did it in spurts. After a couple spurts, the cleaner should shoot out the bottom of the injector.


I then put new filters in, and replaced the o-rings.

I had a problem with my fuel injectors I bought off another member. Putting in the stockers fixed my problem, and each svo injector measured 16.1-16.3 ohms, and they all click fine when I put a stethoscope on them. I will put them on tomorrow and let you know if it fixed the problem.

For those who don't know, the car would buck, surge, etc... It would have to be slowly accelerated to get up to speed, if I stepped on it more than 1/2 throttle, it would just pop and not move.

I will update tomorrow when I put the injectors in to let you know if it cured the problem.
Old Sep 16, 2007 | 10:41 AM
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any luck?
Old Sep 16, 2007 | 08:27 PM
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I wonder if thats the cause of my partial bucking problem at low speeds, and VERY light thottle input? I just put in a set of used (700 mile) SVO's and it has been getting progressively better the more I drive it, but its still there.

At WOT its fine though. And part throttle driving its pretty good. Just at low RPM's also. Say below 1500-1600, if I am giving it like < 5% throttle just to cruise, it will buck some. If I give it enough throttle to start accelerating instead of maintaining speed, its fine.

Similar to your problem? My injecters were used breifly, then sat for about a year since I had them. I may have to soak them.
Old Sep 16, 2007 | 09:33 PM
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Originally Posted by HardcoreRM125
I wonder if thats the cause of my partial bucking problem at low speeds, and VERY light thottle input? I just put in a set of used (700 mile) SVO's and it has been getting progressively better the more I drive it, but its still there.

At WOT its fine though. And part throttle driving its pretty good. Just at low RPM's also. Say below 1500-1600, if I am giving it like < 5% throttle just to cruise, it will buck some. If I give it enough throttle to start accelerating instead of maintaining speed, its fine.

Similar to your problem? My injecters were used breifly, then sat for about a year since I had them. I may have to soak them.
It's called cam surge, get used to it.
Old Sep 16, 2007 | 10:26 PM
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Originally Posted by speed_demon24
It's called cam surge, get used to it.
Old Sep 17, 2007 | 01:45 AM
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Ehhh, it just seems different than what my buddy's SBC Monte does since the cam swap. His, say you hold it at a LOW throttle position, it will actually surge, like you just got on the throttle some, even holding it steady. Mine very well could be cam surge, its pretty minimal, but I thought it was a possibility since it sounded so similar to his situation, also with 30# SVO's, and mine were used, with a few hundred miles on them, and sat for some time until I used them.
Old Sep 17, 2007 | 11:09 AM
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Originally Posted by HardcoreRM125
Ehhh, it just seems different than what my buddy's SBC Monte does since the cam swap. His, say you hold it at a LOW throttle position, it will actually surge, like you just got on the throttle some, even holding it steady. Mine very well could be cam surge, its pretty minimal, but I thought it was a possibility since it sounded so similar to his situation, also with 30# SVO's, and mine were used, with a few hundred miles on them, and sat for some time until I used them.
It's really nothing like my situation. I couldn't give my car throttle. If I gave it WOT it would just pop through the intake.
Old Sep 17, 2007 | 12:05 PM
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Did you get your injectors in? Did it fix the problem?
Old Sep 18, 2007 | 06:54 PM
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results?....
Old Sep 18, 2007 | 08:38 PM
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Kinda curious also, as to what happened.
Old Sep 18, 2007 | 09:25 PM
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Would Sea Foam have cured your problem? Any cons to using sea foam?
Old Sep 19, 2007 | 02:58 PM
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Sea Foam works well, as does Lucas. Sea Foam says it can be run in engine oil, but I would NOT do that. If youve run synthetic, or conventional, and changed it on the intervals, there should be no need to run anything like that IN the oil.

Now as a fuel treatment, I wouldnt hesistate to use sea foam. Used it in a buddys car and it for sure worked. It ran much better after we ran some through a vacuum line into the intake, and dumped the rest in the fuel tank.
Old Sep 20, 2007 | 08:10 AM
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I ran 3 tanks of Seafoam through my lawnmower this year - it really improved the way it was running under load.

One tank through my '94 Polaris Jet Ski noticeably improved throttle response.

I always have a can of the stuff around now.
Old Sep 20, 2007 | 03:43 PM
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I ran sea foam through my swimming pools pump system and the jets are 200% better...lol
Old Sep 20, 2007 | 04:25 PM
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I chugged a can of seafoam once... gave me the ****s... but damn did i run fast as hell to the bathroom.




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