1997 GMC Safari "high pitch sound fuel pump" Questions

Fuel pump high pitch whin sound High pitch whin coming from fuel pump at gas tank. Fuel pump replaced 2 years ago makeing the same sound at that time. that sound is normal

...high pitch squeal. I crawled around under the van while it was running. The noise seemed to be coming from the gas tank area. I hope its not the fuel pump going out. It cost $900 dollars to have it ...

high pitch sound changes pitch for a split second but then returns to the original high pitch sound. The vehicles runs great with 74K miles and I rarely use the 4x4 mode. Why the sound? it is the fuel

High Pitch sound coming from rear Upon start up, a high pitch sound (almost a squeal), comes from the back end. When vehicle is placed in Drive from Park, the sound stops for a bit, until I get going ...

...a very loud fuel pump. If its loud then the fuel pump is defective and needs replaced. Fuel pumps should make a high pitched sound but not real loud. Fuel pressure at the fuel rail should be 30

Occasionally the high pitch whining goes away but about 95% of the time it continues to whine. Any suggestions? If it whines when moving and not moving with the engine running,it may be the fuel pump

...the fuel pump to kick on. It will make a high pitched sound then shut off. If no sound the more than likely you need a fuel pump. You can check at the fuel rail with a guage pressure should be

...bumper away from muffler. The sound of a fuel pump can be heard close to the underside of fuel tank (high pitch whine). If the sound stops before the car dies...that would indicate a faulty fuel

...high-pitched whirling noise. It doesn't have any problem starting; it just makes that noise. Sounds like fuel pump pressurizing the fuel system. They do that for 2-3 seconds and then it stops (for ...

...sound Theres a high pitched buzzing sound coming from the rear of the truck - Seems to be around the gas tank... Fuel pump I agree with newman45, take off the gas cap and have someone turn the key to ...