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'92 22RE Strange Intake Noise

Old 04-03-2019, 06:44 PM
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'92 22RE Strange Intake Noise

Video with air cleaner box open so you can hear. Been doing this for a month. 15% loss on all rpms. New plugs, cap, rotor
Check engine light flash shows no codes, Valve lash is in spec. New engnbldr.com head 2 years ago. Catalytic converter removed years ago. Carb cleaner test done on all intake. Airflow Sensor turns easily, not dragging. Could it be a potato stuck in my exhaust ?

Video;

Air delivery is stock (no cracks)
Valves, chain & guides are 2 years old and inspected with lash check
New chain tensioner hasn't been touched in 2 years - it's been running fine

Last edited by camrycamper; 04-04-2019 at 04:29 PM.
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Old 04-03-2019, 07:07 PM
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Is your air intake system stock?

Have you checked the air boot to the throttle body for cracks?

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Old 04-03-2019, 11:38 PM
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Doesn't sound good at all. Lots of high frequency noises, metal on metal type. Oh boy.
Take off all accessories

Probably a valve?
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Old 04-04-2019, 05:50 AM
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Engine sounds like it is misfiring to me. The cause I don't know.
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Old 04-04-2019, 11:46 AM
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Op has enough info in the op, but I got nothing.
Need more information please

Maybe a vid standing in front of the truck, reving it at the throttle body?

Test all sensors. A quick roger brown google search will get you there.

Recheck timing.
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Old 04-04-2019, 11:53 AM
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I'll throw out chain tensioner. Did you replace?
The proper torque for it is something very low like "tighten by hand / loctite".
If it's too tight it gets stuck in the open position.

Is that the chain I hear?
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