Which fuel pump

[chris_kucia]

My fuel pump is whining - seems to be getting louder.

 

Since its still not bone-chilling cold, I figure I may as well take care of it preventatively rather than risk getting stranded in January in the middle of nowhere.

 

Looked up the P/N on rockauto/ACDelco sites. Here's what's listed for my 2000 Sierra:

 

ACDELCO Part # MU1005

MODULE,F/TNK F/PMP(SENDER & PUMP) w/SENDER,ROBUST FUEL SYS (K53) {#15205623}

 

ACDELCO Part # MU1089

MODULE KIT,F/TNK F/PMP w/EVAP EMISSIONS REQUIRED(EVA); CODE TCF; w/o SENDER,ROBUST FUEL SYS (K53) {#25176865}

 

ACDELCO Part # MU1333

MODULE,F/TNK F/PMP(SENDER & PUMP) CODE TCU; w/o EVAP EMISSIONS REQUIRED(EVA) or SENDER,ROBUST FUEL SYS (K53) {#25314655}

 

I checked my RPO codes, and I don't have a K53, so that rules out #1 (MU1005).

 

I don't have a TCF or TCU in my RPO codes. It looks like #2 (MU1089) is for trucks without the K53 sender and #3 (MU1333) is for trucks without the K53 sender and w/o Evaporative Emissions.

 

How can I tell if I do or don't have Evaporative Emissions?

[chris_kucia]

Not sure this is relevant, but when I had the pump out to fix the sender, there were three lines going into it, and two electrical connectors.

[chris_kucia]

Not sure this is relevant, but when I had the pump out to fix the sender, there were three lines going into it, and two electrical connectors.

 

<{POST_SNAPBACK}>

 

 

 

Nevermind.

 

The price from P&G for genuine GM was so close to ACDelco (within $10), I just went ahead and ordered the GM part. P&G was able to look up my VIN and give me the right P/N (which, for anyone who cares, is 25345026 )

 

Thanks anyhow.