I have a 2001 w 3.3
Bought for 500 w a rod knocking. They left the oil fill cap off for a stretch.
Spent 3 months in a hospital clean shop rebuilding the engine and anything else that I could find.
Motor ran great for 15000.mi
Had to park it for suspended licence for traffic tickets that I couldn't afford to pay so it sat for 2 years. Started periodically but not as much as I should have.
Started driving it again about 6 months ago only to find out that somehow a head gasket blew from water jacket to combustion chamber.
Blew up the top of the radiator.
So decision had to be made. Do I want to basically tear the entire engine down again?
Sure what the hell.
So I took my time, inspected everything. Looked like I may not have had enough coolant in the system. Enough not to freeze but not enough to inhibit rusting. Think it rusted some of the metal in the head gasket and it blew.
So got it all back together, started and ran fine until it warmed up. Then it starts missing, no power at all. It jumps in and out sporadically though. Almost like a loose connection somewhere?
I've read a bunch online and am leaning towards the dizzy. It needed a cap and rotor so I put new ones on. It runs way better almost doesnt miss at all. But does a bit.
Then I read a post where a guy said to spray some lubes of some kind WD 40 down the shaft from under the rotor. So I did, put it back together and started it up and drove it. It ran better than it ever has. But it slowly kinda went back to the missing again. Still better with new cap and rotor but it's got so much more apparantly. Wonder if the dizzy has been screwed up since I've owned it.
What would spraying wd40 down the shaft of the dizzy do to make it run so much better?
Need to mention the knock sensor wire came unplugged from the sensor.
So the knock sensor is out of the loop. Dont think it has a "limp mode " on a 2001 xterra?
Maybe but would the knock sensor even put it into limp mode being unplugged?
I wouldnt consider the way it is running anything like that anyways. It misses, loses power for a few seconds but it will jump right out of it suddenly and run perfect
