What is this thing in the engine?
 

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What is it? It looks like it’s leaking and it smells like gas.

I believe it's the fuel injection pressure regulator.

Oh that engine bay needs a cleaning

I'll be in my bunk!

I stand corrected, it the fuel pressure damper.

The dampers are on each rail. I am just about positive it is the fuel pressure regulator as you thought.

I'm having a hard time finding it online specifically for the 370. Here is one for the 350. Looks to be the same as ours.

https://www.z1motorsports.com/fuel-d...BoCvHAQAvD_BwE

It's the damper. If it smells like gas that means it's leaking. And your car is now a car bomb.

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You may be right. Stock the regulator is in the tank at the pump. I guess we have 3 fuel dampers.

https://cj-motorsports.com/products/...-rails-vq37vhr

Yep.. it’s just a damper. As Spooler said the regulator is in the fuel pump housing.

:iagree:

There is about 54 psi of fuel right there. Replace it ASP. 54 psi of fuel sprays a long way.

Before you loosen the two 10mm bolts, make sure to let the car sit for about 5 hours (overnight is best) for the fuel system pressure to bleed down to ~0 psi.

If you can't wait, wrap/cover it with a clean rag and expect a "pop" and a rush of gas for about 1-2 seconds.

He doesn't have to wait. It's bleeding off soon as he shuts the engine off.

True, but I can tell you from personal experience, if you disconnect it immediately after turning the car off, you'll get a face full of fuel.

Pull the fuel pump fuse, crank the engine a couple times after it stalls.

If the fuel system is working properly, after 20 minutes you will still have ~41 PSI.
After 75 minutes it is ~16 psi.

As mentioned, you can pull the fuel pump fuse, but it is a bit of a pain to get to.

Plus with a cool engine, it won't be HOT when you are right by the exhaust manifold trying to unclip the damper line.