Ok first of all, It has a used rebuilt motor put in from a 1996 GMC Jimmy, same engine size 4.3 v6 2 wheel drive vortec. The person who did the job did a Bad job. Anyways once we got it running it ran ok then one day driving home it just died no warning signs or nothing. It had to sit a while before starting back up. After that, everytime we started it it would run for a few minutes at Idle then just die and took a few to start again, at a couple time engine oil would come out of the bottom during it idleing. Bought a new Distributer, put in and same thing. A couple people said the Fuel pump was not working so we put in a New Fuel pump (#2), and new fuel filter. While doing this they said I needed a new Water pump so we took out the old and started to put on the new and seen that a bolt on the timing chain cover was broke off so we took the cover off and fixed that, but while it was off I noticed in the repair manual that it said to make sure that the crankshaft is positioned in the 6 and 12 oclock position which they were not. They were positioned in the 3 and 12 position, so I moved the top one to the 6 (with chain still on, never took it off) I know, Stupid me, > Put everything back together and fired it up. Started Beautiful and ran Great infact Better then before. Except did not have the get up and go power it should have. Well again after a couple short trips to the store and such it started again, when I come to a stop or corner it died out but this time it does tart RIGHT back up drives alittle then dies again when I slow down. My roommate went and messed with Distributer and timing and now it makes a Loud clunk when I start it and drives about 2 feet then dies where it was driving atleast 1 mile before. Anyways I replaced the Crank shaft position sencor as well. My roomate says it is my Distributer and timing. Because I changed it around on the crankshaft. Yet it was starting up and running better then ever after that. What do you think it is and what should I do? Please help, I have had this piece of crap for almost 2 years and its been broke down for 1year and atleast 9 months out of the 2. I want to fix it and rid of it. Where can I start, at Distributer or what?
Tuesday, August 7th, 2012 AT 7:10 PM