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2011 STI malfunction video


codlinjr
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http://s166.beta.pho...f6fb5c.mp4.html

My 2011 Executive is getting a sporadic "dead trigger", and I have no idea why. please watch this video and let me know if anyone else has experienced this. notice in the first 2 stages, the hammer ends up fwd after the slide cycles, yet on the 3rd stage the hammer stays cocked but I still get a "dead trigger".

I recently had the trigger smoothed and lightened by Derek at Millenium, but I remember the same thing happening one other time shortly before he did anything.

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I don't have an answer, but I hope someone replies because I'm having the same problem with a brand new Escort I bought my wife. At some point in a magazine (2nd shot, 5th shot, last shot...) I pull the trigger back to what should be the break point and it hits a wall and will travel no further. I then rack the

slide and continue just as you did in your match. Between my two sons and myself we have a dozen STI pistols and haven't ever had this issue before.

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Those were the first 3 things that came to mind as well.

It looked like your grip was fine in the first one and it was just a hammer fallow.

Is this a consistent thing and are you sure you released the trigger enough to allow it to reset?

I have short stroked the trigger a time or to.

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Those were the first 3 things that came to mind as well.

It looked like your grip was fine in the first one and it was just a hammer fallow.

Is this a consistent thing and are you sure you released the trigger enough to allow it to reset?

I have short stroked the trigger a time or to.

I'm 99% sure it wasn't a shortstroke, especially since 2 of the 3 times there was a problem the hammer was fwd when it should have been back. It happened the 3 times shown in the video during a 250 round match. It happened one other time prior, during the previous 1000+ rds I've fired, but I didnt get it on video to be able to see exactly what happened.

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I have had this happen. I tried all the items mentioned, but still had issues that were getting worse. I tried everything, nothing worked. Finally I decided that I had replaced all the obvious parts and was getting desparate. I had a spare grip on the bench and swapped grips out. Solved the problem immediately. I have closely inspected the grip, can't find any cracks or other issues? But at least the gun works now...

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checked your grip screws??

This.

However, seeing the two problems occur simultaneously (hammer follow, and dead trigger with hammer cocked) is strange.

Given that the thumb safety and grip safety were completely disengaged when the hammer was cocked, it should have fired.... unless the disconnector was stuck down?

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checked your grip screws??

Yes top screws are tight. I really hope I don't have to swap out grips. When I had all the recent trigger work done I had the smith install and fit a new Extreme Shooters grip and of course I've already sold the original factory grip.

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Looking at your video, I can see your hammer is following the slide forward. This condition it indicative of a worn sear to hammer engagement or insufficient sear spring tension. If it were me, I would start by adding increased pressure to the sear spring.

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I would start by adding increased pressure to the sear spring.

Thank you, after hearing all the different options and "possibilities" that seems like the easiest and cheapest place to start.

That will solve the hammer follow problem (been there, some sear geometry just can't go that light) . Then I guess you can see about the dead trigger while hammer is back. I remember reading that a common cause is cracked frames and loose grip screws.

When it fails and the hammer is back, is the trigger completely immobile or does it still have pre travel?

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has happened to me before... the hammer follows to half cock ...

is your sear and hammer old ??? how many rounds ???

my trigger pull was soo light that when you drop the slide on an empty chamber it would follow... I solved the problem by swapping out the sear, disconnector, and hammer... problem solved...

You should try extreme trigger kits sold @ shooterconnection

Edited by RippSpeed
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