Are you guys 100% positive the oil pump needs replaced. Rare to see an oil pump give up soi early in life. I am pretty sure you have to drop the pan and last I heard you couldn't get the pan off with the enigine in the truck. Someone else may know more.
The pump is right there on the sidce of the motor. The paint will be trying to disconnect the intake tube. Have you guys used a mecahnical gauge to determine the actual oil pressure? The gauges on the dash are"damped gauges" and aren't worth the time it took to manufacture them.
well, when his light came on the valves started ticking, then the light would go off and the clicking and clunking would stop. he was in the middle of now where and kept driving(stupid). this happened several times over. the truck seemed to have cured itself, then he drove it 150 miles home, and as soon as he got to the last mile, the truck started doing the same thing. the oil light was on and the ticking and clunking sounds were back.
now i don't know where to start. replace the pump, and wonder if he damaged the heads. how exactly would i put a pressure gauge on it?
if it is a 4x4 4.2 you can drop the pan in vehicle
if its 2wd you have to pull the engine
sounds like either the pick up screen got glogged or the pressure relief port got stuck open. this can happen when contaminants get into the oil like metal, sealer, gasket materials from repairs, and the use of scotchbryte pads for cleaning gasket surfaces.
use a plastic scraper or 3m nylon pad to remove gaskets they wont did into the aluminum.
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