MedicAJ Posted February 16, 2017 Share Posted February 16, 2017 What could be causing intermittent FTF's in a 2011 where the hammer falls, but there is NO evidence of a primer strike. This was an intermittent malfunction, happening every other or every third round. Andy Link to comment Share on other sites More sharing options...
Woodsk Posted February 16, 2017 Share Posted February 16, 2017 Try the pencil test to see if the firing pin is being pushed forward. if not they replace the FP spring. Link to comment Share on other sites More sharing options...
crays Posted February 16, 2017 Share Posted February 16, 2017 (edited) Have you tried clean and lube on firing pin and firing pin channel? Might be gunked up. sent from me Edited February 16, 2017 by crays Link to comment Share on other sites More sharing options...
BeerBaron Posted February 17, 2017 Share Posted February 17, 2017 bent firing pin or broken firing pin spring is a possibility. Link to comment Share on other sites More sharing options...
Shmella Posted February 17, 2017 Share Posted February 17, 2017 Does the hammer fall when you pull the trigger or is the hammer following the slide when closing? If you are pulling the trigger extremely slow and know the hammer was cocked back and falls and nothing happens then I have no idea whats going on. I had a hammer follow issue where the hammer was down and no primer strike and it was trigger component related. But it would only happen when pulling the trigger really fast. Had the trigger job redone and problem went away. Link to comment Share on other sites More sharing options...
lee blackman Posted February 17, 2017 Share Posted February 17, 2017 Is your slide going all the way into battery? Pencil test is a solid way to get a feel for ignition strength, but if there is no evidence of a primer strike to begin with, then there isn't a point in all that. Typically I leave my firing pin channel clean and dry. I also clip a few coils off the firing pin spring. But all that asside, replace your firing pin. Its good to have a spare around anyway, they aren't expensive. Just replace it, and see what happens, go from there. Link to comment Share on other sites More sharing options...
rishii Posted February 17, 2017 Share Posted February 17, 2017 Are you having pressure signs on your ammo i had it happen where the indentation from the firing pin on the primer was blown back out and sheared off in the FP tunnel which would block the FP from hitting the primer on the next round by racking the round out, it would clear the debris and the next round would fire Link to comment Share on other sites More sharing options...
SWprotected Posted February 18, 2017 Share Posted February 18, 2017 You should also check your mainspring. I bought a used gun and had some FTF issues and found the mainspring had been cut short. As was said above a bent FP could also be an issue. Link to comment Share on other sites More sharing options...
kcobean Posted February 19, 2017 Share Posted February 19, 2017 What troubleshooting have you done so far? What can you rule out? Troubleshooting is a process of elimination. Link to comment Share on other sites More sharing options...
MedicAJ Posted February 20, 2017 Author Share Posted February 20, 2017 So, I did a full tear-down of the slide, blew out the FP channel with compressed air, and reassembled. Ran 125-ish problemn-free rounds through it yesterday. Must have been something gumming up the FP. Link to comment Share on other sites More sharing options...
kcobean Posted February 20, 2017 Share Posted February 20, 2017 2 hours ago, MedicAJ said: So, I did a full tear-down of the slide, blew out the FP channel with compressed air, and reassembled. Ran 125-ish problemn-free rounds through it yesterday. Must have been something gumming up the FP. I would recommend pulling the firing pin and running a Q-tip with some Hoppes on it down that FP channel. That channel gets a LOT of carbon build up in it. I do this after every couple of matches. Link to comment Share on other sites More sharing options...
B585 Posted March 14, 2017 Share Posted March 14, 2017 On 2/19/2017 at 7:35 PM, MedicAJ said: So, I did a full tear-down of the slide, blew out the FP channel with compressed air, and reassembled. Ran 125-ish problemn-free rounds through it yesterday. Must have been something gumming up the FP. Is it still running problem free? Link to comment Share on other sites More sharing options...
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