Fuel Pump dead at 4000 hrs on motor.

[Meccanoble]

According to the math your vehicle has averaged nearly 89 mph over its lifetime. SLOW DOWN!!! HOLY CRAP!

Hella highway miles. Down south living lol but I rarely go over 80 so previous owner must have been gunning it I guess?

 

[Rocket Man]

Hella highway miles. Down south living lol but I rarely go over 80 so previous owner must have been gunning it I guess?

I think something is incorrect because there’s no way it AVERAGED 90, that means either he drove at 120 on the highway to make up for the time it idled or drive in town or the hour meter was reset.

 

[Meccanoble]

I think something is incorrect because there’s no way it AVERAGED 90, that means either he drove at 120 on the highway to make up for the time it idled or drive in town or the hour meter was reset.

I agree. I did a lot of highway driving and traveling but rarely touched 90. Can it be reset by itself? I did have a AFM delete tune around 130-150k miles. I wonder if that could be related?

 

[Rocket Man]

I’m not

I agree. I did a lot of highway driving and traveling but rarely touched 90. Can it be reset by itself? I did have a AFM delete tune around 130-150k miles. I wonder if that could be related?

I’m not sure where it’s stored or how to reset it. Have you had your cluster or BCM replaced?

 

[Meccanoble]

I’m not

I’m not sure where it’s stored or how to reset it. Have you had your cluster or BCM replaced?

Not since my ownership at 120k miles. I did not see any history regarding a replacement neither. The mileage at purchase was considered high (2011 w/ 120k miles @ October 2016). Still a chance previous owner was flying? LOL

 

[JonnyTahoe]

I stand corrected. 208k miles but only 2400 hours!

Really... That's an average of 86 mph with no idle time. 2400 x 86 = 206400

 

[raidernationmike]

OK, My 2009 Yukon Denali finally needs to be replaced. Using AC DELCO MU2139 assembly and sender. 179k miles and it's finally started to stall on occasion. Have you all also replaced the fuel filter? For 11 years, I've only tanked it with Chevron fuel with the occasional Flex Fuel when prices went over >$4.00/gal here in Los Angeles

 

[Rocket Man]

OK, My 2009 Yukon Denali finally needs to be replaced. Using AC DELCO MU2139 assembly and sender. 179k miles and it's finally started to stall on occasion. Have you all also replaced the fuel filter? For 11 years, I've only tanked it with Chevron fuel with the occasional Flex Fuel when prices went over >$4.00/gal here in Los Angeles

On a 2009 the fuel filter is part of the fuel pump assembly in the tank. Your assembly will come with the filter attached, it’s a sock that’s attached to the bucket.

 

[Foggy]

So,,, which fuel pump do you guys think is "better" ??
AC Delco MU2135 OR
Delphi FG1055
This is for my 14 6.2L FlexFuel
Delco is about $30 cheaper... but I want the best.
Unless anyone has used a better aftermarket "pump" portion
in the assembly... I wouldn't mind extra flow as I am supercharged

 

[Fless]

Rock Auto says the AC Delco is original equipment; I'd probably go for that one. It doesn't seem like the crossreferenced model number are the same between the two; not sure why.