[bestatchess]

The typical scenario is IPDM ECM relay fails, truck cranks a lot, but does not start, dumping unburned fuel into cats, cats fail and disintegrate, grit from cats gets back sucked into engine, engine starts burning lots of oil. Usual solution is install of used engine.

 

[wreckdiver]

Ok, thanks. This is the first problem I've had with this truck and It literally happened overnight. Guess I'll try another one, I haven't found a truck that I like better.

 

[wreckdiver]

Ok, upon further investigation I'm going to say your right. My cats are gone, all my plugs are sooty black and a few have actual oil deposits burnt on with one plug being wet(oil). Compression test showed all cylinders right around 185 +/- 5 psi and if what I read was true, the min. allowable is 220? There is no way I can cover up this problem long enough to trade it in and I'm not spending $1500-2000 on a used engine that more than likely has the same problem so I'd like to rebuild the one I have. Does anyone know the best (cheapest)place to get an engine kit or individual parts for the 5.6?

 

[bestatchess]

04BTLE was looking into rebuild kits, w/o much success AFAIK.

http://www.titantalk.com/forums/buy-sell/125488-vk56de-engine-parts-feeler.html

You can buy rings, bearings, pistons from dealers like courtesyparts, but you are not going to like the price.

There are a few specs in this thread: vk56 blueprints - Nissan Titan Forum: Club Titan Forums

It is an aluminum block w/ cast iron sleeves, so if the holes require anything other than honing, it is going to get expensive fast.

 

[bestatchess]

Or fill it w/ SAE 50W and put a 4-sale sign on it. LOL Seems that trap has worked before:

http://www.titantalk.com/forums/tit...n/118100-bad-cat-mess-up-my-piston-rings.html

 

[wreckdiver]

Or fill it w/ SAE 50W and put a 4-sale sign on it. LOL Seems that trap has worked before:

http://www.titantalk.com/forums/tit...n/118100-bad-cat-mess-up-my-piston-rings.html

I dont mind doing that to a dealer but wouldnt want to on a private sale. It smokes so bad right now I dont think 50w would do it (but I might try).

 

[HRTKD]

Is there a way to flush the excess oil out of the exhaust system? Like maybe using a very rich treatment of Seafoam? That way you would at least reduce the smoke from the exhaust. I'm guessing that if your cylinder pressure is so bad that it's going to continue to spew oil into the exhaust but at this point what do you have to lose?

 

[bestatchess]

You can always try snake oil:

Restore USA - Engine Restorer

Amazon.com: Restore RES60019 Engine Restorer 8 Cylinder. 19 oz.: Automotive


"If you have a problem with excessive blowby the Restore stuff will make it smoke less for about a hundred miles. Thats the only benefit I have ever seen from it. Some of the less scurpulous car lots use that kind of stuff to pass off a bad car."

http://www.cadillacforums.com/forums/500-472-425-368/15105-restore-engine-restorer-cadillac-v8.html

The dealer probably buys it by the pallet. :jester:

 

[wreckdiver]

Yeah, I thought about trying some restore and super thick oil just to dump it but well see. I just happened to see a craigslist ad of someone who has an engine out of an 06 with 65000 miles on it and is asking $1000. I left a message with him and am waiting for a response. He must have a wrecked one because he has quite a few parts listed. If I could get it cheap and it checked out good I think that would be the way to go, my truck is really in excellent condition for an 04 and I really didnt want to get rid of it.

 

[bestatchess]

If you get a good used engine, it should be ok. There are quite a few people > 200,000 miles on the original engine. I think the engine is durable, it is the crappy cats located right on the exhaust manifolds that are the problem.