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

donjetman · May 29, 2024

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 · Jun 2, 2024

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 · Jun 2, 2024

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

j91z28d1 · Jun 2, 2024

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 · Jun 2, 2024

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 · Jun 6, 2024

donjetman said:
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 · Jun 7, 2024

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 · Jun 7, 2024

sylentnite said:
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.

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

donjetman

Full Access Member

Chevymec

Member

Fless

j91z28d1

Full Access Member

donjetman

Full Access Member

Geotrash

Dave

sylentnite

TYF Newbie

donjetman

Full Access Member

Similar threads

Forum statistics

Latest posts