Jump to content
  • 0

07 Sierra 3500 HD Cab and Chassis Dual Tank question


JohnWicked710

Question

As the title says with the addition it is a 6.0 Gas motor. I can't find any information on dual fuel tanks. The rear tank is not sending communication to the front fuel tank and I can't figure out why. I believe I will need to replace the fuel pumps/sending units for both tanks. If the back one is going bad, I figure I might as well replace the front one too. But here is the interesting part. I dropped the rear tank and pulled out the pump and it seems to be for a different vehicle based off of the part number I read on the underside of the pump. When I try to look up the pumps on the GMC Parts website all I see are single tank systems and I am uncertain of their compatibility. Anyone able to provide advice?


EDIT: I think I found the proper fuel pumps. The bosch website was the only one I could find that even remotely references primary and auxiliary fuel tanks. After putting in my trucks VIN I got these 2 bosch part numbers: 67781 (Primary Pump) and 66025 (Auxiliary Pump). I would just feel much more confident seeking these out and purchasing them if I got a second opinion. Thank you in advance for any assistance. 

Edited by JohnWicked710
Link to comment
Share on other sites

0 answers to this question

Recommended Posts

There have been no answers to this question yet

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.