big- drew63 Posted February 26, 2013 Report Share Posted February 26, 2013 The front wont lift. Wen I hit switch it sounds like air wats to release.. I re checked all wire its good all arrows pointing right way. I cant hear no air leaking. And the rear lifts nice but wen I come back its dropped or if I puull compressor line out tank the whole car drops. Shouldnt it stay up cuz there like check valves? Help Link to comment Share on other sites More sharing options...
fox_racin4 Posted February 26, 2013 Report Share Posted February 26, 2013 How cold is it where you are? 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
CLNSHVNnDRAGGN Posted February 26, 2013 Report Share Posted February 26, 2013 Sounds like you don't have check valves between the valves and tank which is why it drops when you pull the compressor line. Also, you have a leak somewhere and as your tank loses pressure the whole truck will drop because of not having check valves. As for your front not lifting, either you have the valves plumbed wrong or your lift valve is sticking closed and not letting air through to the bag or the dump valves could be stuck open causing the air to just dump like you're dropping the truck. www.facebook.com/BILLatDivineCreationsPhoto He was taunting me. He's all like "come at me bro!" So I'm like "I'm coming at you bro!" And he's like "hey, fuck you" *chomp*. Then I killed it. I win. ^^^ you have truly taken being a lazy fuck to a new level tonight, an MRE. WOW Link to comment Share on other sites More sharing options...
big- drew63 Posted February 27, 2013 Author Report Share Posted February 27, 2013 How cold is it where you are? not that cold im in so cal. Dnt think there freezin.. Link to comment Share on other sites More sharing options...
big- drew63 Posted February 27, 2013 Author Report Share Posted February 27, 2013 Sounds like you don't have check valves between the valves and tank which is why it drops when you pull the compressor line. Also, you have a leak somewhere and as your tank loses pressure the whole truck will drop because of not having check valves. As for your front not lifting, either you have the valves plumbed wrong or your lift valve is sticking closed and not letting air through to the bag or the dump valves could be stuck open causing the air to just dump like you're dropping the truck. I bought different psi check valves. But they wernt on . But the built-in ones were on the ones that com attached from viair.. I re did the front it raises now but everything drops after awhile . I gotta put tjose check valves on ..or I have to check the dump side of valves incase there leaking alil.. ? Thanks Link to comment Share on other sites More sharing options...
_94fleet Posted March 13, 2013 Report Share Posted March 13, 2013 soinds like sticky valves. i know if i leave my car aired up over night it will be slightly lower the next morning. im guessing due to temp changes B2 Zero.7r - Soundqubed 4-120 - Digital Designs 9918 - Rockford Fosgate T1 5.25" - Deh-80prs - XS Power D3400 XS Power XP3000 - Mechman 250A - Big3 Link to comment Share on other sites More sharing options...
zombiefied Posted March 15, 2013 Report Share Posted March 15, 2013 Sounds like you don't have check valves between the valves and tank which is why it drops when you pull the compressor line. Also, you have a leak somewhere and as your tank loses pressure the whole truck will drop because of not having check valves. As for your front not lifting, either you have the valves plumbed wrong or your lift valve is sticking closed and not letting air through to the bag or the dump valves could be stuck open causing the air to just dump like you're dropping the truck.I bought different psi check valves. But they wernt on . But the built-in ones were on the ones that com attached from viair.. I re did the front it raises now but everything drops after awhile . I gotta put tjose check valves on ..or I have to check the dump side of valves incase there leaking alil.. ? Thanks How long is a while? Im guessing either a valve sticking or you need to check all your fittings for leaks. Even a small leak that you cant hear will cause a vehicle to drop. Spray bottle with soap and water mix, start spraying everything down. Link to comment Share on other sites More sharing options...
big dee Posted July 1, 2013 Report Share Posted July 1, 2013 Yes you need check valves and you need to probly drain the tank an clean all your valves. I sticky valve will cause it to leak down too. If it has trash in it it won't seat an seal off. Link to comment Share on other sites More sharing options...
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