My Truck Died

[jwd2184]

I really need some help here. I drive a 2001 GMC Sierra 4.3L V6 with 225,000 miles and it runs great. I was coming home from work which is a 45 mile drive and about a mile before my exit I lost acceleration as if I ran out of gas. I then quickly exited and the truck died. I filled up two days prior plus I had a gas can with me, so gas is good. The truck would turn over but would not start. Keep in mind I had the P0446 (Some thing with the EVAP system) code come up with the Service Engine Soon about 3 month prior to this. Here are the things I done.

 

Checked for a spark, spark is good.

Checked the Coil with a meter in accordance with the manual and against a new coil, coil is good.

Had the ignition control module checked out at AutoZone 4 times in a row. That's Good.

Replaced fuel filter, during replacement I didn't notice pressure in the system.

Checked that the fuel pump is coming on that's GOOD. Haven't checked fuel pressure I believe it should be 60-66psi

Replaced plug wires

Currently working on cleaning out the vent valve to correct the P0446 code. Trick I read in other forums

 

 

I found a Technical Service Bulletin PIP-4695 NATSA # 10032435 which resembles my issue but no solution.

 

Thanks in advance for any suggestions

[Wingnut]

The fuel pump can whine and still be inoperable. I'd go ahead and check fuel pressure at the rail.

[jro909]

i too say fuel pump, with that kinda mileage its due to die

[tanked_darren]

Yep hook a gauge to the schrader! Not sure on the pressure you should have though.

[jro909]

i'll try to remember to check my repair manuel for the proper fuel pressure for the 4.3...i know its not as high as the v8s

[txab]

VIN "W" is 60-66 psi. Key on, engine off.

[Sir Dan]

Fuel pressure regulator?

[jwd2184]

You all seem to be correct, fuel pump. I'm only getting 10 to 13 psi off the valve and should be getting 60-66psi. There are two different part numbers I could use E3500M which is a single electrical connector and E3501M which is a dual connector. Any advice on this? and where I could get the cheapest fuel pump? Thanks for your advice.

[ChevyTech77]

Cheap fuel pump = doing this same repair over again soon.

 

I only use GM/AC-Delco/Delphi fuel pumps, even at home for side work, exclusively because of this.

[jwd2184]

Cheap fuel pump = doing this same repair over again soon.

 

I only use GM/AC-Delco/Delphi fuel pumps, even at home for side work, exclusively because of this.

 

 

Where can I find the best deal on any of these brands?

[jwd2184]

Cheap fuel pump = doing this same repair over again soon.

 

I only use GM/AC-Delco/Delphi fuel pumps, even at home for side work, exclusively because of this.

 

 

Do you drop the tank or do you remove the bed? I was thinking removing the bed.

[ChevyTech77]

My local Auto Value parts store stocks the Delphi pumps for a resonable price.

 

I drop the tank.

[tanked_darren]

Dropping the tank is the best method IMO, hopefully its not full.

[jwd2184]

RockAuto.com has tons of them. When I replace this I'll be killing two birds with one stone because my fuel guage hasn't worked in over 4 year, so I'll need one with the sending unit. Any suggestion on what not to pay for a fuel pump? What is too much for a fuel pump?

[rgv]

Cheap fuel pump = doing this same repair over again soon.

 

I only use GM/AC-Delco/Delphi fuel pumps, even at home for side work, exclusively because of this.

 

 

Do you drop the tank or do you remove the bed? I was thinking removing the bed.

 

 

neither, do it like this. Less than an hour not counting rewiring a new connector.

 

 

search for MU1089 on ebay, I got a AC-Delco for $175

 

doing it this way, you don;t have to worry about if your tank is full or not.