Serious Engine Trouble

[Anita]

I talked with my isuzu mechanic (a good one) about this problem happening with so many owners. Through the years he has noticed two culprits showing up again and again. The EGR and the PCV both linked to oil consumption. Bob (Green Dragon) has an old post talking about the hazards caused by a faulty EGR.

I have been lucky that my VX doesnt use a drop of oil between changes. I do discuss with my mechanic what's going on with forum members VX's. He once made the point of saying for owners to be very careful about buying aftermarket PCV's.

[psychos2]

I talked with my isuzu mechanic (a good one) about this problem happening with so many owners. Through the years he has noticed two culprits showing up again and again. The EGR and the PCV both linked to oil consumption. Bob (Green Dragon) has an old post talking about the hazards caused by a faulty EGR.

I have been lucky that my VX doesnt use a drop of oil between changes. I do discuss with my mechanic what's going on with forum members VX's. He once made the point of saying for owners to be very careful about buying aftermarket PCV's.

Thanks Anita, So I would try the pcv fix first and if that does not work try cleaning or replacing the egr valve. shawn

[MoonRaker]

The way its set up isnt to my liking, I wouldnt vent it as the vapors are pretty harsh, almost made me pass out on my last road trip. Id say run a hose from the location of the PCV valve to the top of the intake an down to the airbox if anything, you have alot less vacume and the vapors are still going out the tail. Plug the manifold. If your still on warrenty take it to ISUZU and tell them that your going to get it emmisions tested if they dont replace your motor. Tell them you already have it on paper you telling them its on the way out and out of spec, date and time. Also throw in how they tryed pushing you out the door. Even if your not in a state that dosnt have emmisions tell them your going out of state to prove the point. When you have it on paper you can get them fined $10,000 to $50,000 for a corprate emmisions violation, they dont want that. Most people would just walk away like I did because I didnt have the knowledge I have now.

[MoonRaker]

I now that because unless a RX-7 or RX-8 comes to our shop with the emmisions bypassed or removed. It leaves with it. If its already gone its not our problem. We dont remove it our selves.

[psychos2]

The way its set up isnt to my liking, I wouldnt vent it as the vapors are pretty harsh, almost made me pass out on my last road trip. Id say run a hose from the location of the PCV valve to the top of the intake an down to the airbox if anything, you have alot less vacume and the vapors are still going out the tail. Plug the manifold.

The vapors are not an issue. I have not smelt a thing. Any high performance boat motors we build are vented from the valve covers . We have never had a problem with harsh vapors. Even in the dyno room. shawn

[MoonRaker]

Guess my motor was to far gone, atleast it didnt lock up or spin a bearing. Ive seen those vents before many times but mostly on motors with a low vapor output. Guess it just depends on the causes. Ive gotten down to opening my valve cover, id post a pic but I cant without subscribing. Its really brown and cooked in, kinda like a worn out T-bird I rebuilt while I was in the army. Needles to say ive spooken with a few people and all say the same thing there VX didnt do it in early miles of ownership. Ive only spooken with one guy and hes a very anal mechanic. He said he changed the oil between 2500 and 3000 miles. He has 180,000 miles and no problems, he really babys it, never seen dirt, dam shame.