Racing_Joe66

Well I think the dealer just took me. My sister and brother in law picked up the truck yesterday. The dealer didn't give them the title as they knew I wanted the previous owners info to get the past history on the truck and they wouldn't give it to me and so I said I will just get it when I get there from the title. So I drove all night from Iowa to get to the dealer this morning to get my title. I got the info on who owned the truck before and they told me that they were quoted that the repair on the truck was going to be $400.00 or else $12,000.00 to rebuild the engine. He started having some serious white blow by out the vent tube and some black smoke upon hard acceleration and this is all bone stock. And he said he started going through 1 quart of oil in the truck every 200 miles on his way home. So they decided to sell the truck to this dealer instead of finding out what the issue was. Well the dealer didn't do anything to the truck but sell it to me and tell me it ran fantastic.

Well I just got here today and I started it and it idels rough and at 735 rpms on my scan tool. The computer isn't kicking out any codes at all. The tach doesn't jump around at all. I reved the truck up and it cleared up and sound fine but seemed to be slow to return to idle. So I took it for a short drive and it would idle rough or idle fine at stop signs and I noticed alot of white smoke coming from under the hood from the vent tube. And upon hard acceleration with a stock truck and exhaust and all that, should it be puffing out alot of black smoke out the exhaust? It will do it when in park also with the black smoke.

It has insane power, but the rough idle and excessive blow by has me worried that I got taken. And also what the previous owner told me. The under carriage is soaked with oil too, but i can tell the dealer cleaned it up. So I am unsure were the oil leak is.

What do you guys suggest? I am in Carrollton, TX with it for the week if anyone is in the area and wants to help me figure this out. The truck has 248,000 miles on it.

Thanks,
Joe

Fiftygrit

Sounds like a bad injector to me, will they test them before you take it away,

1-2-3

Is the truck your talking about the same that is in your signature? And I'm not sure a dealer is even allowed to give you any information about a previous owner, although it seems you did get that information. The dealer is the previous owner. Have you ever owned a diesel before? The turbo creates a positive air charge in the intake system. It's called boost. Unlike a gas engine, that will suck the air and fuel into the engine. This is also why you will find a vacuum pump behind the power steering pump to run accessories that require vacuum, like cruise control, ac vent doors, etc. This positive air and fuel charge has to be used up before the engine can go back to idle.

Remember that the computer codes are for specific things, not everything. They'll be no code for bad starter, leaking hose, etc.

I'd say step one is answer to the specifics on what truck were talking about. To me, it's sounds like you've got a bad injector pump, and most likely what made it go bad was a bad lift pump.

1-2-3

After a re-read, i see that your talking about a 4.5 so you'll have a CR fuel system. I'd lean too towards an injector. How does the oil smell? is it over the full mark and does it seem thin? A bad injector can dump furl into the oil, which would be bad to run it with. Some folks say it's making oil on it's own as the level keeps rising. If it's just dirty injectors, find you some Howes Meaner Cleaner. That stuff does wonders for these trucks. But it won't fix a bad injector.

Al Ex

Have you had a diesel before? A lot of what you describe doesn’t sound all that unusual for a diesel truck with that kind of mileage. Some amount of black smoke is normal. Injectors as they get older will steadily make for rougher idle. This truck may have big problems but a lot of what you described sounds realistic.

1-2-3

If it's not showing any signs of fuel in the oil, I'd try some Howes in it first. Mine started idling a little rough just outa one day for no apparent reason, and a shot of Howes in the tank cleared it up in just a few miles.

1-2-3

https://www.dieseltruckresource.com/...t-t129080.html

1-2-3

http://www.howeslube.com/meanerpowerkleaner.php

It works, plain and simple.

Racing_Joe66

Yes I have owend a diesel before. 89,90,91,93,94,97,97,01 and thats it. right now i have a 91 and 97 and now the 04.5 the mechanical ones I can work on. the newer stuff no. yes i know the blow by can be normal for a higher mileage truck as my 97 has 450,000 miles and has blow by but nothing compare to what this 04.5 has.

my sister and brother in law picked the truck up from the dealer yesterday and when my sister called me and said the dealer didn't have the title for them. I immediatly drove straight through from iowa to texas to the dealer and arrived this morning and got the title.

the oil is black black black and at the add mark. I see no signs of fuel or mositure on the dip stick.

It seems like oil is also coming out the vent tube.

Racing_Joe66

I will see if I kind find some of the cleaner and try it. But this blow by seem's excessive. If anyone leaves near carrollton and wants to stop and see it and give me there opionion or I can drive it to you and see what we can figure out it would be great.

thanks

1-2-3

Any Napa should carry the meaner cleaner. You may just be in need of some tlc. All round fluid and filter changes may take care of it. I'd get a fuel filter and oil change while your at Napa. Maybe an air filter too.

Racing_Joe66

I hate too put money into the truck and it not be the issue and its something major that I need to return to the dealer. The dealer said he was 100% sure a seal in the turbo was bad and causing the blow by.

Can a dirty injector cause the white blow by out the overflow? There is nothing out the exhaust at idle for smoke of any color.

And when is too much blow by too much?

Racing_Joe66

Any help is greatly appreciated. My dad is thinking a bad ring on one of the cylinders went.

I plan on calling Able Fuel Injection Service Inc. in Lewisville, TX tomm and have them do a compression test for me an go over everything and try and find the problem and give me some hopefully good news. Anyone deal with this place before or recommend a good diesel mechanic that can get me in tomm possibly? Near the Carrollton, TX area, don't want to drive it too far and blow the engine.

1-2-3

A compression test should tell you the condition inside the cylinders. Hopefully it won't be a ring. That usually scores cylinder walls.

Racing_Joe66

Well thankfully I bought this on ebay and I am covered under the VPP $50,000 protection. Which I am working on filling out the claim form right now since no matter what the repair cost to the engine is going to cost over $1,000.00

I don't have a compression tester here with me or I would personally do it. Was hopeing someone on here might be in the area and could help out.