nissanpu

Looking thru the many post I didn’t see anything on poor engine performance. This pickup has poor acceleration and power, especially when going uphill.

This is what I have had done so far:
Replaced distributor cap and rotor, spark plugs and wires, engine oil and filter, transmission oil and filter, had the transmission checked up by a transmission mechanic, changed air filter, changed timing kit, checked all vacuum hoses, used fuel treatment/cleaning additives, and checked vacuum (19.5 steady at idle-20 steady at 2000 rpm-engine and exhaust seems to be pretty good).

One more thing; when going uphill or when I step on the gas there is like a deep load hum noise coming from under the vehicle.

Engines idle beautifully.

I’m looking for a fuel pressure tester to check the fuel pressure to eliminate or identify the fuel system as the source of the problem.

Any advice would be greatly appreciated.

Thanks