1998 Buick Century "pump chatters" Questions

...up, and when it does it blows cold air. Is that the thermostat going bad or is that the water pump? 1. if your thermostat is going out...you will generally over heat if its stuck in the closed ...

wait awhile the fuel pump relay starts to chatter then the auto shut off relay chatters a bit then I hear the fuel pump cycle and shut off .....,now it will start try checking the pressure of the pump

...PUMP CHATTERS, I REPLACED THE RELAY AND THE NEW RELAYS ALSO CHATTERS. I believe I hear the fuel pump running, but the relay does not stay closed. I checked the wiring below the relay box and nothing ...

is the mileage? May need to replace a pulley or so... I had something like this once with the water pump of my 2,5 TDi and I replaced the pump preventively ($120 I think), problem was solved

...pump. now it chatters louder and more. I even used the mopar fluid that is oem for it. What more could it be? It is a 247J transfer case out of 2000 grand cherokee when you dis assembled the tcase, ...

...PUMP CHATTERS, I REPLACED THE RELAY AND THE NEW RELAYS ALSO CHATTERS. I believe I hear the fuel pump running, but the relay does not stay closed. I checked the wiring below the relay box and nothing ...

fuel pump for v6 pump makes a chattering noise and will only run for a minute or so replace the pump , it is worn out. Here's a link to your fuel pump.Here's the pump.Here's another part.

...pump and did help some. However tonite I it was idiling @ 10# pressure and it dropped suddenly to zero again. The engine temporarily chatters @ take-off then stops. Engine does not knock or smoke. ...

...pump hear gasket oil pan gasket oil n filter change to name a few ... Dang thing chatters n just doesn't have that get up and go that this powerful engine should ... Last thing I can think of is ...

1994 honda accord ex i changed main relay and fuel pump it starts and runs then relay starts to chatter then dies any ideas Low voltage on the relay control side can make it chatter .