2006 Ram 1500 5.7 Hemi No Start/Crank After Timing Chain Install

[ebner20]

New member here. Been browsing through post after post and not finding what I needed so I'm starting a new thread.

So this truck has been dying off and on at random times for the past month but would always fire right back up and drive. Until 2 weeks ago. I was on my way to work and truck shut off and wouldn't start. It would only making a whirring noise while cranking.

I had it towed to a shop and they diagnosed it with broken timing chain. They said they hooked it up to a scope and didn't get any compression so it must have bent valves.

Well, being I'm cheap and like to do stuff on my own I had them tow it back to my house so I could tinker.

The valve covers were leaking oil already so I ordered new gaskets and changed them. While I had the covers off, I turned the engine all the way through and it appeared that all rockers were performing as normal and obviously my chain hadn't broke since I was able to turn the engine over and over.

So I get the accessories all stripped off and get the cover off. I immediately see that chain is fine but the tensioner had broke. I was able to fish out all the pieces as well. (See attached pictures)

I got cylinder 1 to tpc and then proceeded to pull off the oil pump and then the sprockets and chain. I replaced all of it with new oem parts. Camshaft sproket was at 12 and crank was at 2 as per the manual. I reinstalled everything back to how it was.
All gaskets replaced with timing cover as well.

I replaced the oil pump and water pump since I had it all easily available.

I replaced both crankshaft sensor and camshaft sensor with oem.

Got the belt back on and tried to fire it up before installing the coolant components just in case I had to get back in and all it does is spin. Doesn't fire up, just spins.

I got underneath and hear my fuel pump going. I've checked all fuses and they are good. Battery is fully charged up and I get nothing.

I've uploaded a video to YouTube so you can see and hear what it is doing.

July 28, 2024

youtube.com

 

[ebner20]

Couple of things to note:

When turning key to on position, my tachometer doesn't move all all. My other guages do.

I also have a red lightning bolt displayed for a minute before it disappears as well as "Serv 4wd" which also dissappear.

I scanned truck for codes and the only code I get is for the battery recently being disconnected.

 

[jws123]

Sorry to break the bad news but that engine has no compression pull the heads and have them rebuilt you have bent valves this is 100% your issue also check the pistons for damage when the heads are off it honestly may be easier to just do a engine swap so many parts trucks around on facebook.