How to change oil pump in a v10 Triton F250 with 4 wheel drive

Remove the oil pressure sender unit and fit a oil pressure gauge , start engine and check pressure , if ok replace sender, if low check oil pump and pump pickup strainer . it could be blocked by chewed up timing chain guides.

Remove the oil sender unit, fit a oil pressure gauge , start the engine and read the oil pressure at idle engine hot, must read above 10 psi and needle not flicking, must increase with engine speed , if pressure is ok replace censer, if not check oil pump screen and relief vale spring, can also be caused by crankshaft bearings clearance .

Hello Robert, you could have a bad oil sender unit. Install an auxiliary oil pressure gauge to measure the amount of oil pressure. If reading is around 15 PSI or better at idle, change the oil sender unit.

check that the oil level is not over the mark as this causes foaming of the oil and loss of pressure. At 80km/hr you will be doing around 3 grand and that will be enough to whip the excess oil into froth.. Too much oil is worse than too little oil.

This is not necessarily a problem. If the oil is at correct level and viscosity grade, and the light always goes out with a small (not large) rise in revs, then it could possibly be OK. An engine does not need much oil pressure at idle, say 600-800 RPM.

It could also be a faulty sender unit on the engine, a worn oil pump, or a faulty oil pressure relief valve on the oil pump or in the filter.

To be sure, get an oil pressure gauge fitted to the sender outlet hole, and see what the reading is at various revs. If there is indeed a pressure problem by the gauge, try first a new oil filter. If not it is probably a faulty sender unit.

Replace the oil pressure sender and the problem should be solved . Fortunately , the senders tend to go out more frequently than the oil pump. If you change oil pressure sender and the light keeps coming on , you may have to consider replacing the oil pump in the motor or risk getting stranded some where with a blown motor.

I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.

As long as the pressure goes up when you give it gas, it is fine.

try replacing the oil preasure switch, if that doesnt solve your problem then have your oil preasure tested, if it really doesnt have oil preasure it will cause internal engine damage so start with the switch and then go from there, hope this is helpful.

Sounds like the Oil Gauge sensor or level unit.

DIAL IN CAB COULD BE AT FAULT, NEED TO GET ANOTHER DAIL GUAGE AND CONNECT TO SENDER, IF SAME COULD BE SENDER, IF STILL THE SAME, PRESSURE VALVE IN BLOCK STICKING DUE TO DIRT OR U/S, OR AT WORSE !!! ENGINE WORN, THIS WILL BE CONSTANT IN MOST CASES, FAULT IN GUAGES ARE NORM INTERMITANT.
LOTUS