What is the deal with Blazer - S-10 fuel pumps?

My 2000 S10 has 77k on the original transmission and fuel pump. My 88 S10 has 170k on the original tranny and went 150k on the original fuel pump and I replaced it because the tank rusted out.

There is no "deal" with Blazer-S-10 fuel pumps. How was yours diagnosed as being shot?

Doc

The two different mechanics told me that the fuse for the fuel pump and sending unit blew. They replaced it and the engine ran for about a minute and the fuse blew again. They said that the fuel pump was pulling too many amps. One of them told me that it must be a short, but a short would cause a fire, wouldn't it?

Anyhow, $900.00 is the bill including towing and diagnostics from two different repair places.

Rose,

A short won't cause a fire in the tank because there isn't enough 02 to support cumbustion. Furthermore, if it WAS a short, it wouldn't have run for a minute after the fuse was replaced, it would have immediately blew when the FP kicked on.

Did the boneheads even bother to run a fuel pressure check?

Have they tried upping the amerage of the fuse (temporarily) to see just how many amps this thing is pulling?

Fuel pumps (any anything else electrical/mechanical) will eventually fail, but AFAIK there is no specific issue with the pumps on late model GM anything. Driving around with a partially plugged fuel filter will burn the pump out prematurely, but generally you see a gradual decrease in fuel pressure over time until it just quits. Yours still works (at least for a minute!) which is atypical of a shot fuel pump.

Doc

They put in a 30 amp fuse and it lasted about a minute longer than the regular replacement. They did replace the filter. I don't know if it was blocked or not.

Rose