Hey Guys,

I've got an 05 supercrew lariat and I can't figure out if this ticking sound I hear from the engine is normal. It's almost like the your truck makes when your alternator is bad or like oil hitting hot metal, but without the hiss afterwards. It's not back to back, as it has about a 30 second delay inbetween. What the heck is it? Anyone run into this?

Thanks,

Duke

 

Are you sure its not the AC relay clicking on and off?
Turn your AC and all air off and see if it still occurs.

 

Yeah I messed with the AC and thats got to be it. Doesn't do it when I have the AC off. But is that normal for that to be that loud and that frequent, somewhere around every 20 to 30 seconds.

Side note, how are those HID going?

 

yeah its your AC and mine does it too, i would assume its normal

 

Its abnormally loud but its just the high voltage relay they use.
I wouldnt worry about it.

 

Ok, sounds good...just couldn't figure it out b/c I can hear it from inside the cabin and it's pretty loud for A/C. Never had a car that loud before...course then again I was driving an Infiniti..big difference on build quality there. Guess I shouldn't expect it to be that quiet.

 

Its actually most likely not the relay butthe AC clutch kicking in.

 

that sounds right...still gonna talk to them about it when i have to bring it in next week for them to fix the paint.

 

Sure it's not your fuel injectors...? Three valves...more clicking....FMC making a mint offa "cam phaser paranoia"...

 

The fuel injectors would make a tic-tic-tic sound, I hear this on my truck when I lift the hood with the engine running.

I have not heard the A/C clutch cycle from inside the cab, I wonder if there is an inside relay?

Michael

 

My 4.6 does it. It's the A/C clutch.
Chris