Fuel pressure relief valve.. Where is it? - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 12-22-2011, 07:03 AM   eBay Motors  #1 (permalink)
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Fuel pressure relief valve.. Where is it?

I have a fuelling problem with my truck. It has been suggested that its could be the FPRV. My question is where is it at? I have searched and found valves for the 04.5 and up but nothing for the LB7. Also searches come up for fuel pressure regulator more than anything. So any help with service ability or locating would be appreciated!
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Old 12-22-2011, 07:06 AM   eBay Motors  #2 (permalink)
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whats your tuck doing?
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Old 12-22-2011, 08:12 AM   eBay Motors  #3 (permalink)
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Quote:
Originally Posted by DirtyMaxx03 View Post
whats your tuck doing?
It pulls good till about 2500 RPM and then will slowly pull on up to 3000 RPM.
While at the 3000 mark it just kinda hangs there. The truck is gaining speed and stuff but just doesen't feelliike it has the grunt it needs to. Fuel filter has been changed along with all other fluids.

I recntly went on a trip towing about 11,000 pounds or so and this truck strugled with it.
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Old 12-23-2011, 06:32 AM   eBay Motors  #4 (permalink)
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Anyone???
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Old 12-28-2011, 06:19 AM   eBay Motors  #5 (permalink)
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Ttt
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Old 12-28-2011, 07:09 AM   eBay Motors  #6 (permalink)
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This website will not let me post a link. It is deleting the words from the link.

http://www.diesel bombers.com/chevro...-lb7-fprv.html

Click the link and after it opens go into your browser bar and edit the link diesel bombers by removing the space junk between diesel and bombers making those two words all one word with nothing in between. Then hit enter.
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Old 12-28-2011, 07:15 AM   eBay Motors  #7 (permalink)
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Link is a no go.
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Old 12-28-2011, 07:33 AM   eBay Motors  #8 (permalink)
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Correct link doesent work.
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Old 12-28-2011, 07:43 AM   eBay Motors  #9 (permalink)
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Correct link doesent work.
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Old 12-28-2011, 07:45 AM   eBay Motors  #10 (permalink)
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Sorry for the double post. I searched there site and found some info on it thanks!
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