Educate me on injector failure
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Joined: Nov 2017
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Educate me on injector failure
Just had #1 injector fail on me this weekend. Took it to Ford Dealer to have them identify which one it was. Shop foreman was one who diagnosed it. Said broken tip and burned off glow plug. Also said the hfcm was not building enough pressure which caused the injector to fail. He asked about blue spring, I had put that in last fall. Also new motorcraft hfcm last fall. I'm running rotella 5w40 and doing oil filter every 5000 and fuel every 10000. All motorcraft filters with proper cap. Are there any other things that would have caused the failure? Would monitoring fuel pressure when edge cts help to catch this sooner? I'm just running scan gauge right now. Just trying to take care of my truck and understand a little better. Thanks in advance .
Logistics Pro
Joined: Jul 2014
Posts: 4,673
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From: Houston, Texas
Is there a OBDII scanner that monitors fuel pressure? I didn't think so. I think you have to tap into the upper bowl or the line. But that would be good to monitor. I got more injector education that I ever wanted because of a bad pump.
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As far as I know fuel pressure doesn't go through the obdII . I want to say that the edge cts 2 can. I was hoping somebody had some insight.
Fleet Owner
Joined: Nov 2003
Posts: 27,901
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You have to add a fuel pressure sensor and gauge. These engines never had one, so the PCM doesn't receive that signal ..... it is ALL aftermarket to get that.
Lots of threads on it. A search will turn up the needed information.
Lots of threads on it. A search will turn up the needed information.
Hotshot
Joined: Dec 2014
Posts: 17,829
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From: Jersey Shore
Your welcome.
I lost a motor to a broken glow plug tip. Others running too long with a broken injector tip have done the same. They need to look in the cylinder and see what has happened before you go too deep into your pocket. They may want to pull the head to see the damage and of course retrieve the end of the parts before anything else is done. People who are very lucky have the debris stay in the piston cup, but it's rare.
If valves are damaged, it can be just new valve, or a new head. If the piston is imprinted, a new piston and head. If the cylinder wall gets scored as mine was, a new motor.
I lost a motor to a broken glow plug tip. Others running too long with a broken injector tip have done the same. They need to look in the cylinder and see what has happened before you go too deep into your pocket. They may want to pull the head to see the damage and of course retrieve the end of the parts before anything else is done. People who are very lucky have the debris stay in the piston cup, but it's rare.
If valves are damaged, it can be just new valve, or a new head. If the piston is imprinted, a new piston and head. If the cylinder wall gets scored as mine was, a new motor.
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