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jrisingmoon 05-04-2006, 08:51 AM I'm considering buying a 6.2L utility truck and was wondering what I should keep my eyes open for. I don't know any common problems with 6.2s so I was wondering if I could get a heads up before I bite off more than I can chew. I know a few things about diesels so I'm not completely new to this. Any advice? High Sierra 2500 05-04-2006, 10:14 AM Welcome to the forum! Look out for blown head gaskets, smoke (other than black), blowby, and cooling system problems (leaks, overheating, etc.). You can tell if a head gasket is blown. Remove the radiator cap and look for bubbles in the coolant. If you see some, that is bad. Look for white smoke (some when the engine is cold is normal). If you see some when it is warm, that is bad. Blue smoke could mean that it is burning oil. Rings and valves (which are major) are suspect, or it could be something malfunctioning in the CDR or EGR systems (which is minor). Under certain circumstances, it could also mean dirty or worn out fuel injectors (moderately minor), or (in some cases) a bad injection pump (moderately major-EXPENSIVE-like $500 or so). Blowby can be checked by removing the oil filler cap when the engine is running. The more vapors puff out of the hole, the worse. Some is fine, but a lot means worn rings. Of the things I have mentioned, this is probably the least important (in my opinion) unless the truck has blue smoke. In that case this check will tell you if the rings are worn out or if something else is causing the smoke. Look for any leaks in the cooling system, particularly in the radiator. Radiators for these trucks are 300-400 dollars, even the Chinese ones... The downright cheapest one I have found was $267! That was last year, too... jrisingmoon 05-04-2006, 03:23 PM Good to be here. I guess you're meaning piston rings, right? If there are bubbles in the coolant in ANY engine, does that mean blown head gaskets? Leaking oil where the heads meet the block is a dead give away, isn't it? I haven't checked the truck out yet but I'll study this before I go out. Thanks. jrisingmoon 05-04-2006, 05:06 PM does the engine have to be running while checking the coolant for bubbles? tigman 05-04-2006, 08:26 PM Yes jrisingmoon 05-05-2006, 06:32 AM I don't anticipate this being a problem in the future but if it is, how hard is it to get fuel to the engine if I run out? I've heard for some diesels it's tough fix this problem but maybe those were big rigs.... I think it's a cummins that its tough to bleed air out of the lines or detroit diesel... Not sure.... High Sierra 2500 05-05-2006, 08:13 AM It is not too bad. You have to bleed the air from the system. Usually just takes some cranking. Matt C 05-05-2006, 08:25 AM Save alot of trouble and don't run out. BKinzey 05-05-2006, 11:38 AM Save alot of trouble and don't run out. Don't bother with insurance either, just don't ever get in an accident:rolleyes::rolleyes: High Sierra 2500 05-05-2006, 06:11 PM Save alot of trouble and don't run out. :exactly: jrisingmoon 05-05-2006, 06:54 PM Yep, keeping it fueled is the best policy. I guess I was more concerned about any air in the fuel line issues than anything else. jrisingmoon 05-07-2006, 06:42 PM Checked out the truck. pretty serious blowby and there were bubbles in the radiator. I guess if there are ANY bubbles in the radiator then there are problems. The oil filler neck was leaking oil around the grommet connecting it to the engine. It shifted kinda hard by I don't know if that's common for 6.2s or not. The guy who was selling it, got the truck from someone who owed him money. He's had it for about a three weeks and the previous owner was a welder, and a pool servicer at some point before that. It has metal tool chests and rack, but all the chests were locked except one. The key was lost. I'll pass... | ||