2002 loud bang from dash

I get a bang(crack) from time to time from the dash area.
I have no clue where it comes from.
It sounds like a rock has hit the wind screen.
Talking it over with my brother his does it too. He has a 2006 sierra.

Any ideas what this might be?

Cheers
Stripe

I get a bang(crack) from time to time from the dash area.
I have no clue where it comes from.
It sounds like a rock has hit the wind screen.
Talking it over with my brother his does it too. He has a 2006 sierra.

Any ideas what this might be?

Cheers
Stripe

Just wondering about it we might have it narrowed down.

Cheers
Viper

Intermediate Steering Shaft is probably what you are hearing. Notorious for producing a knocking/clunking type sound at low speeds during turns.

Just wondering about it we might have it narrowed down.

Cheers
Viper

maybe it is a rock hitting the windshield.

a bang would / should create a vibration. any vibration in the occurance of this ? If so the steering components need attention . also shocks mounting hardware ..

HVAC ducting doors can make noises at times.

sounds are hard to diagnose too many areas of the potential source.

could even be the drivetrain .

when this occurs give vehicle operating details. speed, turning , shifting,stop,start etc....

Thank's all.

This noise only happens 3-4 times a year.
It is not affected by turning or any other action it just does it those 3-4 times a year.

We think it is an HVAC door or a loose weld/rivet in the fire-wall.

I thought a lot of others would have had this noise.(and found the cure)

Again
Thank's All

Cheers
Stripe

I also have a 2002 with the same problem you have, a loud crack coming from the dash near the steering wheel. My truck does it everyday and I think it is the plastic or fiberglass in the dash that expand when it gets to a certain temp. in the cab

I also have a 2002 with the same problem you have, a loud crack coming from the dash near the steering wheel. My truck does it everyday and I think it is the plastic or fiberglass in the dash that expand when it gets to a certain temp. in the cab

!rst time it scares you but.
Only notice we had was very cold or hot at start-up.
We don't have the only 3 that do it.

You could be right too.

Cheers
Stripe