Injectors??
Thread Starter
Instructor
Joined: May 2011
Posts: 151
Likes: 1
Injectors??
I have a 96 LT4 that is acting odd. In city driving at a steady throttle in second or third gear there is a very pronounced surging/bucking happening! It's almost as if I am slightly moving the throttle back and forth, but, I am holding a steady throttle. When I mash the throttle there is no hesitation at all and it runs exactly as it should! I was told the injectors are causing this(by an injector company) and would like the opinion of the forum experts before I just start throwing money at it!!!! Thanks for any help!!
Racer
Joined: Oct 2003
Posts: 475
Likes: 21
From: CLAREMONT Ca
I have a 96 LT4 that is acting odd. In city driving at a steady throttle in second or third gear there is a very pronounced surging/bucking happening! It's almost as if I am slightly moving the throttle back and forth, but, I am holding a steady throttle. When I mash the throttle there is no hesitation at all and it runs exactly as it should! I was told the injectors are causing this(by an injector company) and would like the opinion of the forum experts before I just start throwing money at it!!!! Thanks for any help!!
They even provide you with a before and after performance test for each injector. Sent all of mine to them a few years back (all were able to be rebuilt) and I've not had a single problem with them. I currently have about 15K miles on her since I've had them rebuilt.
Thread Starter
Instructor
Joined: May 2011
Posts: 151
Likes: 1
Just got done with the pressure and ohm test. 42psi at prime,38psi while running! Injector resistance 1-16.0, 2-14.0, 3-16.0, 4-14.1, 5-15.4, 6-14.4, 7-15.3, 8-14.5! just to clarify the injector company stated mine were probably dirty, not bad.
Racer
Joined: Dec 2007
Posts: 312
Likes: 0
From: San Antonio Texas
If you have an automatic tranny.......do you have a performance torque converter?
Also.....at what MPH and at what RPMs is this surging occurring?
KW
Last edited by Kevin Woods; Oct 7, 2013 at 11:17 PM.
Burning Brakes
Joined: Nov 2010
Posts: 855
Likes: 36
From: Crystal Springs MS
I have a 96 LT4 that is acting odd. In city driving at a steady throttle in second or third gear there is a very pronounced surging/bucking happening! It's almost as if I am slightly moving the throttle back and forth, but, I am holding a steady throttle. When I mash the throttle there is no hesitation at all and it runs exactly as it should!
Close the garage door (or wait until night) and look under the hood for sparks from the wires. Sometimes a squirt bottle of water will help you find these.
Burning Brakes
Joined: Nov 2010
Posts: 855
Likes: 36
From: Crystal Springs MS
Racer
Joined: Dec 2007
Posts: 312
Likes: 0
From: San Antonio Texas
Nothing in what he posted stated the engine was original to the car.
I mean.....yeah, I'm a B-body guy.....but give me a little credit
(LOL) ....KW
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