Fueling & Injection - Fuel pump for 99 sierra 2500
09-15-2011, 09:11 PM
Hello, I have a 99 sierra 2500 6.0L, the fuel pressure is low 50psi, can I just replace the pump and not the whole sending unit? I have seen on ebay they sell just the pump, but the people at the parts store say you have to replace the whole thing.
Mr. Fuel Pump
09-15-2011, 11:30 PM
You can get the whole thing for $142 from here, why bother with a pump swap:
09-16-2011, 05:48 AM
What is wrong with 50 psi fuel pressure? That is within OEM specs.
09-16-2011, 11:25 PM
I thought I read fuel pressure was supposed to be between 60-65psi, I guess I'm wrong. Well if they fuel pressure is good than my hesitation is coming from something else.
09-17-2011, 05:21 AM
Looks like the fuel pressure is supposed to between 55-65psi, I'm going to double check my pressure today.
09-17-2011, 11:17 AM
Not good my pressure was at 49psi at idle.
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