Changing Fuel Pump/Sending unit, Bosch ????

[donjetman]

Is this the original ??? Bosch # F00hkoo149.
2007 Yukon Denali 6.2l L92
Purchased the vehicle wo/records in 2018 w/132,000 miles.
I'm having fuel gauge issues so I'm changing the complete assembly.

 

[Chevymec]

I just replaced the pump in my 2007 Z71 Tahoe and it did not have a Bosch labeled pump. I know for a fact it was the original.

 

[Fless]

FWIW Different fuel systems, though, 2 hoses vs 3 hoses.

 

[j91z28d1]

I'd honestly be surprised any car part with a Bosch name on it lasted that long. I have horrible luck with all aftermarket parts from there.

oem could be made to better spec thou.

 

[donjetman]

Short story: Problem = fuel gauge is still wonky w/CEL P0463 persists after installing new Bosch # 67442 fuel pump assembly. Vehicle still runs great.

Long story: Once I dropped my tank and removed the pump, it looked obvious to me that the pump had been changed before I purchased the vehicle, (Oct of 2018 w/130k miles). Why obvious? because it had a Bosch brand fuel pump assembly, and 1 one the fuel line connections in the tank wasn't perfectly seated.
I blew out the lines and no carbon pellets anywhere. The inside of tank was clean.
I went on the Bosch website, typed in my V.I.N., and purchased the part# it said was for my 07 6.2L Denali, pt# 67442. When it arrived the sending unit fuel level arm/float was clocked differently than the one that came out (see pic). I installed it anyway. There isn't any interference. The Bosch unit I pulled out, pt# F00HK00149, had been working perfectly for the 5+ yrs and 65k miles until a couple of months ago when the fuel gauge started acting wonky.

I assume there is something wrong with the gauge itself. I know there are independent shops that fix and customized gauge clusters here in town and online. Unless someone has a better idea? that's the direction I'm heading in.

PS: dropping the tank and changing the pump is not hard if: the tank is near empty, there isn't any rust, and a lift is nice.

 

[Geotrash]

Short story: Problem = fuel gauge is still wonky w/CEL P0463 persists after installing new Bosch # 67442 fuel pump assembly. Vehicle still runs great.

Long story: Once I dropped my tank and removed the pump, it looked obvious to me that the pump had been changed before I purchased the vehicle, (Oct of 2018 w/130k miles). Why obvious? because it had a Bosch brand fuel pump assembly, and 1 one the fuel line connections in the tank wasn't perfectly seated.
I blew out the lines and no carbon pellets anywhere. The inside of tank was clean.
I went on the Bosch website, typed in my V.I.N., and purchased the part# it said was for my 07 6.2L Denali, pt# 67442. When it arrived the sending unit fuel level arm/float was clocked differently than the one that came out (see pic). I installed it anyway. There isn't any interference. The Bosch unit I pulled out, pt# F00HK00149, had been working perfectly for the 5+ yrs and 65k miles until a couple of months ago when the fuel gauge started acting wonky.

I assume there is something wrong with the gauge itself. I know there are independent shops that fix and customized gauge clusters here in town and online. Unless someone has a better idea? that's the direction I'm heading in.

PS: dropping the tank and changing the pump is not hard if: the tank is near empty, there isn't any rust, and a lift is nice.
View attachment 429631

Looks to be quite a few design differences between those two pumps. FWIW, the original pump on my '07 wasn't labeled Bosch and I replaced it with a GM Genuine pump a few years ago. It's been fine since but I wasn't having fuel level indication problems. I'm curious if you may have developed a bad wire in the fuel gauge circuit. Now that it's back together it would be near impossible to check the resistance without dropping the tank again, so I would probably be looking at cluster as a next step if only because it's easier than proper electrical troubleshooting would be at this point.

 

[sylentnite]

I have a 09 Yukon 2500 and just changed out both my fuel pumps(Dual Tank) and they both were Bosch with 2009 date code. I was also having fuel gauge issues, and didn't realize my truck has an aux tank until I got to digging. I assume Bosch came in these trucks stock. I ordered 2 AC Delco pumps and they both were Bosch. All seems fine now with the gauge since the swap.

 

[donjetman]

I have a 09 Yukon 2500 and just changed out both my fuel pumps(Dual Tank) and they both were Bosch with 2009 date code. I was also having fuel gauge issues, and didn't realize my truck has an aux tank until I got to digging. I assume Bosch came in these trucks stock. I ordered 2 AC Delco pumps and they both were Bosch. All seems fine now with the gauge since the swap.

I'm keeping the ole Bosch pump I pulled out for a spare.
I still haven't figured out the wonky fuel gauge. I'm not to worried about it since the DIC has a fuel totalizer.