Strange noise under 2005 Tahoe rear seat

[Robertabf]

2005 Tahoe with 87k here - lately am hearing a clunky sort of tapping noise under rear seat. Sometimes the noise will appear with just the key on and sometimes not - so it isnt consistent but you dont need to be moving to hear it.

 

I know the fuel pump is under there but thought they whined when going bad.

 

Never had any problems - really love this truck and would appreciate any advice...

 

Thanks!

[gmtech4]

did you get under it and listen your self yet ?

[Robertabf]

No, am not able to get under the vehicle, bad knee

[gmtech4]

engine running,open gas cap and listen,if its louder its the pump,,,,or take it too a tech .dont know what else to tell ya on the internet

 

good luck