HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Tech > Support Tech
Register Photo Gallery FAQ Community Calendar

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 05-05-2014, 07:13 PM   #1
Mark Ugrich
Member
 
Join Date: May 2011
Location: Auburndale,Florida
Posts: 220
Likes: 29
Liked 71 Times in 38 Posts
Default hydrauliced fuel line

I'm hoping somebody here might have some ideas. On my 1984 GMC 454 3/4 ton 2WD Suburban I hear a knocking/banging noise on the center right side of the body.After checking I found the fuel line knocks in cadence with rpm and fuel pump.You can actually feel the line pulse if you hold it.I've replaced the fuel sending unit and sock all the rubber fuel lines,fuel pump with an AC Delco unit,blown out the lines with compressed air and replaced the line from the pump to the carb with braided line.Replaced the gas cap too.I'm thinking air must be entering either the main fuel line or the return line,but I don't see how.The knocking isn't there all the time it comes and goes.Has anybody seen this before?It's drivin' me nuts.Turning up the radio does help Thanks in advance, Mark
Mark Ugrich is offline   Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:05 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.