hey all,
. so i bought this truck about 6 months ago from this guy for 2000$. said his neighbor had rebuilt the engine from the block up. all seemed fine with it and checked out on the obd, good fluids. ran great for 2 months except the abs dinged constantly and the guy said the oil guage was messed up so it dinged too. i replaced the sending sensor and it seemed to confirm this. well, out of the blue one day it started tapping. freaked me out but i was on my way home from work and it was friday, so i parked it. next day i changed the oil to synthetic and put some lucas stabilizer in it and a high end filter. knocked again on start up for about 30 seconds and then quieted down. I sighed relief.
. on monday i left for work and all was well. i cant remember for sure now but it may have run fine and it wasnt u til the next day on the way to work about 20 miles in, it started tapped again. i say tapping, but it felt like almost a knock. but ive had knocks and it didnt sound quite that bad. i pulled into an advance auto and tried to figure things out. a friend said a one oc the overhead spark, fuel plugs could be bad and to swap to to find out. so i did. i swapped 1 and 3, tur ing it over after to see if there was a change. no change, might have been worse so i turned it off immediately and swapped them back, then turned it over again.
I kid you not, that was the last time it ran. i tried everything diagnostic i could think of for about a week before i gave up and had it towed home and its been parked since, but i need to get it going. my brother thinks it was the oil pump all along and the guy i bought it from just screwed and knew it was about to go. any thoughtz woukd be greatly appreciated.