Shudder
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Joined: Dec 2024
Posts: 61
Likes: 12
From: Kansas
> Two injectors are completely clogged up
Thank you for the report back. I have been experimenting with the ICON T7 and I think it allows individual injector testing, though I was looking at how to adjust the temperature readings. Good to know if I have to fix my friend's 2006 5.4L . It has a ticking sound which I think is valve train, but, it might be an injector. We already replaced a few coils.
Thank you for the report back. I have been experimenting with the ICON T7 and I think it allows individual injector testing, though I was looking at how to adjust the temperature readings. Good to know if I have to fix my friend's 2006 5.4L . It has a ticking sound which I think is valve train, but, it might be an injector. We already replaced a few coils.
Thread Starter
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Joined: Dec 2024
Posts: 61
Likes: 12
From: Kansas
Shudder
2010 F-150. 235,000 Miles. Has a shudder. I have replaced the coils, plugs, injectors, phasers, guides, chains, tensioners, u-joints, flushed with EPR and treated with MOA. Ran 44k to threat fuel lines. Still have a shudder feel. No codes for misfire.
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Joined: Dec 2024
Posts: 61
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From: Kansas
Its a hard thing to describe, but you feel it throughout the truck. Mostly in the steerng wheel, feels like its coming from the front of the truck. Also feelable when in P and revving between 1-2k rpm
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Joined: Mar 2018
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From: Manitoba
Check motor mounts .
- Engine Misfires: Issues with the ignition system, such as worn spark plugs or faulty ignition coils, can lead to misfires, which cause noticeable engine shaking.
- Worn Motor Mounts: The motor mounts secure the engine and absorb vibrations. If they are worn or broken, they allow excessive engine movement, which you would feel as a shudder.
- Vacuum Leaks: Unintended air leaks in the vacuum system disrupt the air/fuel mixture, causing rough idling and shaking.
- Dirty Throttle Body or Mass Airflow (MAF) Sensor: Carbon buildup on the throttle body or a dirty MAF sensor can prevent the engine from receiving the correct amount of air, leading to an uneven idle and shuddering.
- Fuel System Issues: A clogged fuel filter, clogged fuel injectors, or a failing fuel pump module can disrupt fuel delivery, causing misfires and a rough running engine.
- Check for Diagnostic Trouble Codes (DTCs): Use an OBD2 reader to check for any stored codes, even if the "Check Engine" light is not on. Codes related to misfires (P030X) or lean conditions (P0171/P0174) are common with these symptoms.
- Visual Inspection:
- Inspect the motor mounts for visible cracks, tears, or excessive play.
- Look and listen for a hissing sound in the engine bay, which indicates a vacuum leak.
- Check all vacuum hoses for cracks or disconnections.
- Basic Maintenance:
- Clean the throttle body and the mass airflow sensor.
- Inspect and consider replacing the spark plugs and ignition coils, especially if they are old.
Thread Starter
Member
Joined: Dec 2024
Posts: 61
Likes: 12
From: Kansas
Check motor mounts .
- Engine Misfires: Issues with the ignition system, such as worn spark plugs or faulty ignition coils, can lead to misfires, which cause noticeable engine shaking.
- Worn Motor Mounts: The motor mounts secure the engine and absorb vibrations. If they are worn or broken, they allow excessive engine movement, which you would feel as a shudder.
- Vacuum Leaks: Unintended air leaks in the vacuum system disrupt the air/fuel mixture, causing rough idling and shaking.
- Dirty Throttle Body or Mass Airflow (MAF) Sensor: Carbon buildup on the throttle body or a dirty MAF sensor can prevent the engine from receiving the correct amount of air, leading to an uneven idle and shuddering.
- Fuel System Issues: A clogged fuel filter, clogged fuel injectors, or a failing fuel pump module can disrupt fuel delivery, causing misfires and a rough running engine.
- Check for Diagnostic Trouble Codes (DTCs): Use an OBD2 reader to check for any stored codes, even if the "Check Engine" light is not on. Codes related to misfires (P030X) or lean conditions (P0171/P0174) are common with these symptoms.
- Visual Inspection:
- Inspect the motor mounts for visible cracks, tears, or excessive play.
- Look and listen for a hissing sound in the engine bay, which indicates a vacuum leak.
- Check all vacuum hoses for cracks or disconnections.
- Basic Maintenance:
- Clean the throttle body and the mass airflow sensor.
- Inspect and consider replacing the spark plugs and ignition coils, especially if they are old.
No codes for anything engine related. (Only downstream 02 sensors)
I have done a timing job, coils, plugs, injectors. The throttle body has been cleaned. New MAF sensor. No hissing noises. There is no fuel filter on the 2010. But FORscan did reveal the pump is at 60% at idle along with 6% LTFT under load. There is no p0300
Thread Starter
Member
Joined: Dec 2024
Posts: 61
Likes: 12
From: Kansas
> Two injectors are completely clogged up
Thank you for the report back. I have been experimenting with the ICON T7 and I think it allows individual injector testing, though I was looking at how to adjust the temperature readings. Good to know if I have to fix my friend's 2006 5.4L . It has a ticking sound which I think is valve train, but, it might be an injector. We already replaced a few coils.
Thank you for the report back. I have been experimenting with the ICON T7 and I think it allows individual injector testing, though I was looking at how to adjust the temperature readings. Good to know if I have to fix my friend's 2006 5.4L . It has a ticking sound which I think is valve train, but, it might be an injector. We already replaced a few coils.
Update. Injectors did not fix it. Did a timing job. Nope. Motorcraft coils. Nope. New motorcraft plugs. nope. Im pooped.
