03 3.9 gas in oil

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03 3.9 gas in oil - 3/17/2008 2:58:51 PM    west mi neon   Posts: 2 Joined: 2/2/2006 Status: offline My father in law has an 03 3.9 dakota  that is hard starting and has gas in the oil even after an oil change.  There are no codes and nothing showed up when he took it to a local garage to have them hook it up to a diagnostic scanner.  Where should i start looking fuel pressure regulator?  injectors? computer?  any hep would be much apreciated Post #: 1

RE: 03 3.9 gas in oil - 3/18/2008 7:59:54 PM    herkguy Posts: 241 Joined: 2/27/2007 Status: offline How many miles on it? When was the last time it was tuned up(plugs, cap, rotor, airfilter, throttle body cleaned)? if the idle air port on the Throttle Body is dirty it can run rough at idle and could lead to hard or no start If its like the old 5.2 and has alot of miles a good tune up won't hurt and is a cheap investment a small amount of fuel in the oil usually burns off when warmed so if you have a lot of it you may have leaking injector(S) that are letting out fuel after sitting. another option is that it needs one or more of the items for the tune up and because its not getting the right mixture or a good spark you are slightly flooding it on start. _____________________________ 06' Laramie QD cab 4x4 4.7HO, TRX4, Tow, curtain Airbags, htd seats added: Truxedo cover, door sill covers, rear mud guards, Airaid JR and modified airbox intake, Fastman TB, Gibson exhaust Prev: 94 Dak 4x4 5.2 5spd, 01 Dak 4x4 QD cab 4.7 (in reply to west mi neon) Post #: 2

RE: 03 3.9 gas in oil - 3/18/2008 10:52:42 PM    Panzertech   Posts: 2 Joined: 2/13/2008 Status: offline I am thinking with a hard starting vehicle you have just flooded it a few too many times trying to start it that is where the fuel in your oil came from. Check your plugs, if you don't know when the last time they were changed best to change them. Also make sure you GAP the plugs according to the info on the emissions sticker under the hood, never trust that plugs are pregaped I always check. Check your Air filter if it is clogged no air no fire. Seen a ton of trucks that guys say suck gas like mad and smoke black, and start hard that had mud in the filter or a wet filter. Plug wires check the condition and make sure there is no corrosion on the terminals. Cap and Rotor never hurts to replace especially if they never have been changed. A professional injector cleaning might be in order as well they can be pricey as they are not the throw in the tank type, they use a high grade solvent to clean the injectors to like new. Cheaper then replacing just one injector in most cases. Check the ground for your Coil(s) if it is corroded clean it up. Hope this helps. PS. if all else fails Compression Test...... < Message edited by Panzertech -- 3/18/2008 10:59:31 PM > (in reply to herkguy) Post #: 3

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