opinion time from everyone.

[scewroot]

OK, so I'm deployed right now and I called my wife the other day and she told me " something" is wrong with the titan. All the problems she described makes it sound like either a) my rings are going bad or B) head gasket. If I'm going in on this endeavour I'm going to do an entire rebuild and wanted to know from you guys, who makes the best rebuild kits. I don't want to go stock I want to throe a little extra money into and go for an all out monster of an engine. So I guess what's the best big bore kit on the market. Thanks for the time in reading this and I hope to hear from you guys ... Oh I've upgraded my exhaust and have stillen headers, stillen high flow cats, and stillen exhaust. I don't know if it matters but any help would be greatly appreciated. I'm in the va beach virginia area if anyone wants to come help when I get back ... Parts will be wait in and w.e is good you're more than welcome to have w.e you want that comes out of it ... And a few brews on me

[TitanZ04]

In my opinion, the Titan's oil may have been or may be very low and/or not changed timely. Also, I another consideration is the wrong type of oil or incorrect oil spec. was used in your Titan. What year is the Titan? Are there any noticable oil leaks or places where a fine mist oil may be spraying?

[scewroot]

No, no noticeable oil leaks, or places it might be spewing out. But I change my oil every 2500-3000 miles, and don't go over. As far as the oil level goes I make sure they do an oil change. I mark my oil filters after they get installed and I always pay for Mobil 1 if they don't already use it. And I check my oil whenever I get it home. But before I left I noticed that the oil level was dropping considerably. So I filled it up with oil, I had to put four quarts into it just to get it filled up and then a week later the oil pressure was dropping again and I checked it and it was right back down. Like I'm burning wayyyyy more than I should be. Any thoughts? She also told me when she was behind me one day if I got on it it would blow white smoke although my oil looks fine

[Joewee3.5]

A 4qt loss between changes with no leaks is crazy. I'd be fogging the streets like a mosquito killer. If its blowing white then theres a problem. I hope you get it figured out and thanks for your service.

[scewroot]

That wasn't 4 QTS. Between changes that was about 6 weeks, and you're welcome I enjoy what I do ... I'm a machinist and welder .... Truck parts !!!!!!

[23doctor]

a gallon of oil being burned in 6 weeks is staggering. you mentioned that you have seen low oil pressure associated which then prompts you to add oil... this indicates that the oil level is low enough that the pump is sucking air. if the oil is this low, you should be adding closer to 6 qts to bring it to the H mark on the dipstick. when does the oil pressure drop? under load or at idle? if it is at idle or very low engine speeds, is there a sort of vibrating humming noise associated with the drop in pressure? if this is the case, the oil pressure relief valve is sticking open and oil pressure is bypassing the pump discharge and not being routed into the engine where it is needed. this valve should only work at higher engine speeds when the oil pressure is higher than required (there's a little plunger in the pump with a calibrated spring holding it shut. when oil pressure exceeds this spring pressure, the plunger opens and oil is bypassed from the discharge side of the pump back to the inlet side). this is common on higher mileage engines where there has been either sludge buildup or trash has gone through the oiling system.

consuming that much oil, your truck should be smoking like a freight train! one thing to keep in mind is that regardless of the actual failure, be prepared to replace catalysts, air fuel ratio sensors, and possibly rear oxygen sensors depending upon the severity of the oil fouling downstream of the exhaust valves.

hope this helps you

-n-

[scewroot]

Originally Posted by 23doctor

a gallon of oil being burned in 6 weeks is staggering. you mentioned that you have seen low oil pressure associated which then prompts you to add oil... this indicates that the oil level is low enough that the pump is sucking air. if the oil is this low, you should be adding closer to 6 qts to bring it to the H mark on the dipstick. when does the oil pressure drop? under load or at idle? if it is at idle or very low engine speeds, is there a sort of vibrating humming noise associated with the drop in pressure? if this is the case, the oil pressure relief valve is sticking open and oil pressure is bypassing the pump discharge and not being routed into the engine where it is needed. this valve should only work at higher engine speeds when the oil pressure is higher than required (there's a little plunger in the pump with a calibrated spring holding it shut. when oil pressure exceeds this spring pressure, the plunger opens and oil is bypassed from the discharge side of the pump back to the inlet side). this is common on higher mileage engines where there has been either sludge buildup or trash has gone through the oiling system.

consuming that much oil, your truck should be smoking like a freight train! one thing to keep in mind is that regardless of the actual failure, be prepared to replace catalysts, air fuel ratio sensors, and possibly rear oxygen sensors depending upon the severity of the oil fouling downstream of the exhaust valves.

hope this helps you

-n-

The only time I notice that oil pressure drops is when I use my brakes ... Or have to get on it hard ... I didn't replace my O2 sensors when I did my exhaust and I was an idiot and had to use an impact to get them off. I already know that they need to be replaced BC my truck wouldn't pass inspection. However luckily I'm military and end result I didn't have to get it inspected BC I was out of state. Any insight into if not replacing them could cause that? And I'll check on the other stuff I have about 3 months before in can go home.