When driving my oil pressure gauge and tachometer does not work

You really need to check it with a oil pressure gauge. It would be a good idea to change the part again,it could be at fault even though it is new,cause it is having a different symptom .

Those gauges are electric now, check to see if the wire is on good. The sending unit can fail, cheap and easy once you find it, but requires a special socket, get that at the same time.

Either you have way to much oil in the truck or the pressure switch is no good.

yes it could be

Here's a video that might help!

have a mechanic test the oil pressure with a mechanical gauge
it is more than likely that the electric sender unit has failed and is sticking internally
the tic noise could be a relay working from an intermittent power supply or bad ground

Then that good,oil pressure is created by the crankshaft,The faster you go the more the oil pressure is created,The minimum oil pressure is 18 psig at 2,000 RPM and 24 psig at 4,000 RPM,You basically dont have a oil pressure problem

Make sure there is spark at the plugs and fuel pressure at the fuel rail. The oil pressure guage will only come up when the engine starts.

First we would need to know when this occurs. Asuming the oil level is at the full mark!. If the pressure goes up during acceleration and down at idle when engine is fully warmed up, then this is normal. An engine requires 10 psi of oil pressure per 1,000 rpm ( ex. 20 psi at 2,000 rpm, 25 psi at 2,500 rpm, and so on ) . If the gauge is moving back and forth erratically at idle , i would say the gauge is bad. If it drops to 0 while accelerating I would say your oil pump is bad. If from time to time it seems to work and other times it seems not to work, I would say the oil pressure sending unit for the gauge is bad. If the pump failed you would start to here a Knocking noise from the engine in a short period of time. Use the above scenario's to narrow down what it may be.

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