Chatter noise

[Erin]

1994 k1500 5.7. I hear a chatter noise, like cards in bicycle rims, coming from the intake/throttle body area. I listened to it with a long screwdriver. Gets louder as you accelerate. It’s been doing it for several months & would just like to know what y’all think it is. Truck runs fine & no codes. Thanks.

 

[Cuckfield]

1994 k1500 5.7. I hear a chatter noise, like cards in bicycle rims, coming from the intake/throttle body area. I listened to it with a long screwdriver. Gets louder as you accelerate. It’s been doing it for several months & would just like to know what y’all think it is. Truck runs fine & no codes. Thanks.

Mine does this too; not sure what it is myself. Is the exhaust on yours stock?
Mine makes this noise on acceleration and the person who owned this truck before me axed off the catalytic converter, maybe that has something to do with it?

 

[Erin]

Mine does this too; not sure what it is myself. Is the exhaust on yours stock?
Mine makes this noise on acceleration and the person who owned this truck before me axed off the catalytic converter, maybe that has something to do with it?

I have true duals and both cats.

 

[Erin]

This is where I put the screwdriver end to listen.

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[Nad_Yvalhosert]

Yup, I hear it on my '95. It's the pulsing of the fuel injector solenoids. Totally normal.

 

[Erin]

Yup, I hear it on my '95. It's the pulsing of the fuel injector solenoids. Totally normal.

Ok. Might be a different issue then. I hear it in the cab when driving. It’s pretty loud.