Hello All,

This afternoon after coming back from some errands I heard this ticking noise inside the passenger cabin. I first heard it when at a stop light, and it sounded kinda like an exhaust leak (that pop/puff sound). Here is what I know (think I know) about the sound:
-I only hear it when the car is warm. When the car is cold I can't hear it in the cabin
-Oil level looks good (oil was changed about 1k miles ago by Nissan Dealer)
-No CEL's
-Can feel the pop/tick pulsate in the 6mt shift ****.
-I have included a picture of where I hear the sound from. But that might not be true because I can still hear it when I go towards the back of the engine. (near transmission)
-Engine and Transmission were replaced by Nissan dealer about 3 months ago. Not sure if it was a new crate engine or rebuilt (oil consumption issue and grinding of the gears from 2nd to 3rd)
-Broke the engine in to spec and got oil changed at 1k.
-Red-lined a couple times, but also shifted before or at rev-limited (never money shifted)

That's a lot of info, but I'm trying to narrow this down. It sounds like lifter noise, but oil levels are good. Could it be a broken rod? I haven't tried to test the performance, but it doesn't feel sluggish into 3k RPM.

TIA for your help.

I plan to take the car in to the dealer at their first appointment, but need to get to work tomorrow and am wondering if it's safe to drive (about 3 miles each way to work).

Hooman

 

For those of you wondering...the problem was resolved by tighten the bolts on my crank shaft pulley.

 

Hummm.....there are no "bolts" on the crank pulley......just one big bolt thru the center and the pulley tends to automatically tighten from the rotation. They are usually a biotch to get loose.

Also, it fits tightly over a keyway.

Did you recently replace or remove it?

 

The dealership replaced my engine and transmission about 3k miles ago for oil consumption and grinding of the gears from 2nd to 3rd. It could've of been from that.

As for "bolts", you are correct. They tightened the middle bolt that runs through it. I don't know why I said bolts.

 

Cool....just glad it's fixed!