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Old Sep 8, 2017 | 03:16 PM
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Running rough

I have an 04 F2 50 with 6.0 with a proximally 225,000 miles. I filled up with gas last Wednesday and every so often the truck will start running really rough and then it will clear up. Is it possible to of gotten some bad gas if so what products are out there to clear that up. Could've been injector going bad what are the best products for cleaning injectors. No check engine light on, gauges are good, nothing different on the scan gauge.
 
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Old Sep 8, 2017 | 06:31 PM
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Can also hear it backfiring.
 
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Old Sep 8, 2017 | 06:58 PM
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Backfire through the intake or exhaust? Any smoke? And when you say "gas" did you really put gas in it or is your meaning of gas diesel.
 
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Old Sep 9, 2017 | 09:07 AM
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It sounds like through the exhaust. I put diesel gas in.
 
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Old Sep 16, 2017 | 08:57 AM
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If it is a bent pushrod, how could I have did that and how difficult is it to replace. Thanks for all the suggestions
 
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Old Sep 16, 2017 | 09:00 AM
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Also do you think maybe it could be a bad injector any way of checking each injector over in my scans gauge is showing more than 500 psi
 
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Old Sep 16, 2017 | 04:24 PM
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If you have an iPhone or iPad laying around download the Forscan app,and get an obd wifi adapter. Then scan for codes or cylinder misfires. It can pinpoint which cylinder is the issue. My guess is you have an injector going bad.
I have tried numerous oil and injector cleaners, but they are limited in helping.
 
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Old Sep 19, 2017 | 09:48 PM
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Here are the codes I pulled yesterday.
P0046
P0265
P0266
P0405
P0672
P0674
P0676
P0678
P0683
wow.
 
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Old Sep 19, 2017 | 10:15 PM
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My guess is you need to replace injector #2. And you have a glow plug or glow plug module issues. Both fairly easy to do.
Watch videos from diesel tech ron for gp testing, pretty fast and simple.
 
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Old Sep 20, 2017 | 04:25 PM
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I replaced all 8 glow plugs about 6 months ago. Could they be bad already? Replace the injector or can you remove it and clean it?
 
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Old Sep 20, 2017 | 06:47 PM
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Test the gps. Easy to ohm them in place. Look up video from diesel tech Ron. Perhaps these are old codes you never cleared. Maybe the control module is shot.
Get a rebuilt injector from a Ford dealer.
 
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Old Sep 20, 2017 | 10:48 PM
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Ok I'll give it a try this weekend. Thanks again.
 
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Old Sep 25, 2017 | 04:19 PM
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So I ohm my black connector for the 2,4,6,8 glow plug and got zero ohms on to 2,4,6 but 8 had .060. So I suspect my glow plug module is bad. Am I right
 
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Old Sep 25, 2017 | 09:02 PM
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When you tested the black plug you held the plug in your hand and ohm'ed towards the engine harness I'm guessing. Did you ground your meter to the engine or battery and use the other lead to check the wires one at a time? There is also another connection between the black plug and the glowplugs harness that looks like this



Make sure it's still plugged in

What kind of glowplugs did you install?
 
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Old Sep 25, 2017 | 10:29 PM
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Originally Posted by tcjhkbjt
So I ohm my black connector for the 2,4,6,8 glow plug and got zero ohms on to 2,4,6 but 8 had .060. So I suspect my glow plug module is bad. Am I right
That reading of 0 ohms seems odd. There has to be some reading. Typically around 0.1. Could it be the range you selected on the meter?

What about the injector?
 
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