Clicking Noise Driver Area (1 Viewer)

[Mad Ambassador]

Twice after a cold start I've got a strange clicking noise from the driver area. Can't tell if it's coming from the door or engine compartment. Sounds like a typewriter sending morse code and last for about 15 seconds after engine has been running for a few minutes. Any ideas on what it could be? Or things I should look at?

'99 LX 470 with 195k miles. I have had it for about 6 months now and have not any major issues. I've got a short video of it but not sure how to attach to post.

 

[Land Shark]

Exhaust manifold crack or loose spark plug would be my guess

I would jump in there and check all my spark plugs. there is a great write up here on mud about the correct torques ect about them. That would eliminate that as an issue.

 

[Malleus]

Relay

 

[Mad Ambassador]

Relay

Thanks for the suggestion. Is there a certain relay you suggest I check?

 

[Malleus]

Pull the plastic trim panels, which you have to do to access the relays anyway, and listen. It'll be obvious where it is.

 

[Land Shark]

good call @Malleus he did say "click" not "tick"

 

[Mad Ambassador]

good call @Malleus he did say "click" not "tick"

Pull the plastic trim panels, which you have to do to access the relays anyway, and listen. It'll be obvious where it is.

Thanks for your help! The master switch was failing which was causing the window relay to make the clicking sound.