unitedsecorp Posted February 14, 2013 Share Posted February 14, 2013 I am having a loud exhaust leak sound when truck is under load (climbing) and also on decel with jake break on high. Replace flex exhaust pipe that was shot, but sound is the same. Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted February 14, 2013 Share Posted February 14, 2013 Then check for a manifold gasket leaking or a head gasket leaking. Quote glenn akers Link to comment Share on other sites More sharing options...
Noid93 Posted February 14, 2013 Share Posted February 14, 2013 I guessing if you had bad exhaust flex pipe, you have a bad pipe elsewhere. Its faily common to have leaks right by the heavy steel clamps that hold the pipe to the frame. Quote There Is No Replacement, For Displacement!!!!! Link to comment Share on other sites More sharing options...
staxx Posted February 14, 2013 Share Posted February 14, 2013 Check for boost leak in piping to charge air cooler and look make sure charge air cooler doesnt have a crack. Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted February 14, 2013 Share Posted February 14, 2013 Then check for a manifold gasket leaking or a head gasket leaking.Sounds like i was reading in a chiping noise but did not read question good. Quote glenn akers Link to comment Share on other sites More sharing options...
Challenger Posted February 14, 2013 Share Posted February 14, 2013 What truck or engine do you have? Quote Link to comment Share on other sites More sharing options...
unitedsecorp Posted February 15, 2013 Author Share Posted February 15, 2013 Truck is a 2002 granite with etech 400hp. Did find a small oil leak on valve cover seal, don't know if it is related. Quote Link to comment Share on other sites More sharing options...
Challenger Posted February 15, 2013 Share Posted February 15, 2013 Truck is a 2002 granite with etech 400hp. Did find a small oil leak on valve cover seal, don't know if it is related.I wouldnt think its related. Check for any boost leaks as stated already above, Check the aircompressor air intake line that feeds off of the intake manifold. The hoses can blow and the metal line can rub through. A hole in the metal line can be hard to see. Quote Link to comment Share on other sites More sharing options...
Javier89 Posted February 4, 2020 Share Posted February 4, 2020 I am having the same problem and replaced the same pipe any update to what was causing that noise Quote Link to comment Share on other sites More sharing options...
880joe Posted February 5, 2020 Share Posted February 5, 2020 I had a similar situation and it was the gasket between the turbo and exhaust manifold Quote Link to comment Share on other sites More sharing options...
Javier89 Posted February 15, 2020 Share Posted February 15, 2020 How did you find out it was that Quote Link to comment Share on other sites More sharing options...
880joe Posted February 15, 2020 Share Posted February 15, 2020 After about 100 miles of driving you could see a little bit of smoke residue where it was leaking Quote Link to comment Share on other sites More sharing options...
fjh Posted February 15, 2020 Share Posted February 15, 2020 Check the compressor inlet hoses as well 1 inch hose At the bottom rear of the inlet manifold And the most common Failure is the one @ the compressor head! Quote Link to comment Share on other sites More sharing options...
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