« previous next »
Pages: [1]   Go Down

Author Topic: Back firing adn smoke from my engine  (Read 2547 times)

Offline five0roller

  • New Users
  • Posts: 1
Back firing adn smoke from my engine
« on: March 17, 2009, 12:45:03 pm »
i purchased an 85 C10.  Great exterior but the engine is giving me problem.  idles very high constantly and then backfires when i shut it off.  There is a hose which runs from the left side of the air filter housing down to the engine which is melted.  I know this may not explain the problem but its the best i can do woithout a picture of it.  The Hose runs to teh exhaust manifold i believe.  I thought this was supposed to be metal.  And would this hose being detatched cause it to melt and would it cause my Idle/backfire problem?
« Last Edit: March 17, 2009, 12:50:08 pm by five0roller »
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19192
Re: Back firing adn smoke from my engine
« Reply #1 on: March 17, 2009, 01:03:00 pm »
Post a pic. The stove pipe is metal. Do you have a.i.r.? Pix would really help. Check for vacuum leaks.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 406 Q-ship

  • Newbie
  • Posts: 53
Re: Back firing adn smoke from my engine
« Reply #2 on: March 20, 2009, 01:45:05 am »
Sounds like just a high idle speed to me, reset the idle speed to about 700-800 RPM.  I bet the backfiring you are hearing is the engine run-on.  The hose you describe is the fresh air for crankcase ventalation, if it is in that bad of shape I bet the vacuum hose aren't doing that well either.......replace them all too (cheap insurance).
Logged
The difference between genius and stupidity.......Genius has limits.
Pages: [1]   Go Up
« previous next »