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The previous motor did exactly what your saying....I wish I would of caught it before it destroyed my motor. The "new" motor is missing and knockin about the same. I'll have to check out the timing chain guide on this motor. After this I give up. Everything is basically new in the truck. Thanks...

Something in the motor is what I first thought of also. That's why I took the first motor apart. I pulled the heads then discovered all the damage in the cylinders. The motor I put in had everything on it....heads, intake, distributor and sensors. No parts were used from the old motor. Sorry I...

When this problem first started, I had the same spark plugs in the original engine for 4 years without any problems. The initial sound the engine was making sounded like something was inside the engine bouncing around. Now the "new" motor I've installed is doing the same. The ground is actually...

I've checked and rechecked all wires....when the spark plugs go bad it's pretty easy to tell.....the ground is bent past the center electrode. This has happened on #1, 3, 4 but mostly on #6. I'm thinking the timing is all messed up but can only be set by the computer and it's sensors. All the...

Which wires are you talking about? I've done point to point resistance checks between the computer, fuel injectors and the coil packs. All wires read good. I've also used 2 different "distributors", coil packs, and spark plug wires.

Spark plug wires are new along with everything else. There is a whole different set of sensors that came on the new/used motor I switched with the original motor. We didn't touch the dipstick on the new engine. When I pulled the old engine apart the #6 cyclinder had all kinds of metal shavings...

Got a good one here....had a knockin noise coming from my 4.0 at idle and it would get louder as the engine was rev'd up. Knockin went away after about 15 minutes of running. When it went away the check engine light came on and the engine starting missing. Got the code read out and it said one...

I got my kit and valve cover gaskets (not included in kit)from Advance Auto....not sure if you have one of those there. You might want to look into fuel injector o-rings also. I tore one when I put it back together and didn't find out until I started it. Fuel shot everywhere. You can keep the...

Leak At first it wasn't coming out fast. After driving it about 8 miles the gasket completely gave at and the anti-freeze/water would drip/run right out. Mine was coming out fast enough to see exactly where it was coming from when looked at closely. Sounds like yours might be the same area. It...

Leak I just had the same problem but a little worst. My intake gasket starting leaking above the water pump and it appeared to be coming from the water pump itself. The gasket is really thin in the front. I ended up changing the intake gasket to correct. When I pulled it apart it was pretty...