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  #1  
Old 09-29-2018, 05:59 PM
lars1 lars1 is offline
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Join Date: Sep 2001
Posts: 17
Default Supply Line to Filter will NOT Quick Disconnect

I am asking for suggestions on how to free up the 1/2" quick disconnect fuel supply line to filter. It is stuck. Could it be a seal(s) and if so might lubrication such as WD-40 help? The return line disconnected correctly. It had sliding movement. I am using a "disconnect" tool from Lisle. Thanks in advance.

+++ 2003 GMC 2500 HD Duramax 175K Stock +++

1. Instrument cluster replaced with GM and then rebuilt by Module Master after the GM replacement failed.
2. Lower body corrosion fixed; bed liner applied on skirt.
3. Light "white" smoke during idle presumably unburned fuel. No increase in oil level obvious.

Overall a reliable truck. Good starter cold or hot. 18-mpg overall (75% Highway) lightly loaded. The injectors are the only disappointment. I hope to replace and have talked to Kennedy. I continue to be preplexed by the LB7 injector design / failure and the supposed filtration issues.
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Old 10-03-2018, 01:54 PM
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More Power More Power is offline
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Location: Montana
Posts: 10,537
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Quote:
Originally Posted by lars1 View Post
I am asking for suggestions on how to free up the 1/2" quick disconnect fuel supply line to filter. It is stuck...
Is this fuel supply line quick-disconnect sorta near/beneath the brake booster?
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Old 10-04-2018, 09:10 AM
Kennedy Kennedy is offline
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Join Date: Mar 2000
Location: Loyal WI US
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Quote:
Originally Posted by lars1 View Post
I am asking for suggestions on how to free up the 1/2" quick disconnect fuel supply line to filter. It is stuck. Could it be a seal(s) and if so might lubrication such as WD-40 help? The return line disconnected correctly. It had sliding movement. I am using a "disconnect" tool from Lisle. Thanks in advance.

+++ 2003 GMC 2500 HD Duramax 175K Stock +++

1. Instrument cluster replaced with GM and then rebuilt by Module Master after the GM replacement failed.
2. Lower body corrosion fixed; bed liner applied on skirt.
3. Light "white" smoke during idle presumably unburned fuel. No increase in oil level obvious.

Overall a reliable truck. Good starter cold or hot. 18-mpg overall (75% Highway) lightly loaded. The injectors are the only disappointment. I hope to replace and have talked to Kennedy. I continue to be preplexed by the LB7 injector design / failure and the supposed filtration issues.
Probably best to send a picture. There is no quick connect at the filter. Only at the LH side of engine near booster, under truck by fuel cooler, and at the tank sender itself.
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2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
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2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
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