You probably have air leaking through either your vac hose and/or the valve that controls your vac line. You might try replacing the gaskets on your valve stems and try a new vac hose. Also important to get the air pout of the hosing you are using to vac wuth before opening the vac line.
AnswerThe pump loosing its vacuum is definitely caused by a poor seal somewhere between the suction of the pump and the suction inlet of your vacuum equipment.In the case of an above ground installation, check all connections of the hose and your vacuum apparatus.
In the case of an in ground installation, you could have a crack in the pipes from the pool inlet to the isolation valve close to the pump. To check this, make sure the water level of the pool is ABOVE the connection point where you attach your vacuum hose. Set the filter up for vacuum operation WITHOUT hooking up the vacuum hose. If the pump keeps it's prime, your pipes are probably O.K. Check your vacuum hose and apparatus. If you keep the water level higher than the suction connection in the pool, even if the connection is not 100%, the pump won't loose it's prime.
power steering pump
A dry prime pump will work similar to a normal vacuum. However, the dry prime pump will suck up any solids, liquids, and will get rid of larger messes in a shorter amount of time.
you will have to evacuate the refrigerant then have a vacuum pump hooked up to it and have it hold a vaccuum and then recharge the system
you may have to prime your pump Clean or replace the filter.
Yes it could. It would depend on it's application, where it is in relation to the pump and the type of pump and system you have.
the prime signal is built into the ecm check for quad driver failure codes reman ecu about 129.00 to 150.00 with exchange reuse old prom chip
The engine is the vacuum pump. All the vacuum operated accessories are operated by the vacuum supplied from the engine.
Engine vacuum will be affected by valve adjustment due to vacuum leakage when valves are not closed at the proper time, when the piston is on a downward stroke. The vacuum would be less that it should be.
The vacuum lines, in a 1993 Honda accord, are controlled by a vacuum pump. The vacuum pump regulates the proper pressure in the vacuum lines.
A gasoline engine makes it's own vacuum. The diesel engine has a vacuum pump next to the power steering pump.A gasoline engine makes it's own vacuum. The diesel engine has a vacuum pump next to the power steering pump.
That means you have a manual choke on your carb and not a vacuum advance choke( black little round thing on the lft side of your carb facing your eng.)..the fuel evaporates from your choke being open that's why you have to pump your gas that would be my guess........
Vacuum pump? Is this a diesel?