Watchman
Well-Known Member
- Joined
- November 11, 2013
- Messages
- 219
- Reaction score
- 19
- City, State
- Virginia
- Year, Model & Trim Level
- 1993 Explorer Sport-4WD
My 93 Ex has an exhaust leak. I can smell it after stopping (engine off) , and hear something coming from the pass side of the engine (at higher speeds or accelerating). I took it to an exhaust shop and the owner said it sounds like it is coming from the pass exh manifold. He used a piece of hose. He could also smell it. He recommended tightening the exh manifold bolts, so I did - moved them maybe 30-60 deg. However, no change in smell (when I stopped) or noise at high speed or accelerating. Brief background, I did a head gasket job this past summer and when I put the exh manifolds back on, I used the exh manifold gaskets that came with the engine gasket kit. Also, when the heads were machined they only machined the head to engine surface, not the mating surface to the exh manifold.
I understand there is a exhaust test you can do using Sea Foam. Is there a thread that shows a step by step how to or can somebody explain it ? Please identify the how and where please - I am somewhat a newbie here. The exh manifold maybe cracked - I don't know. Need help. Thanks !
I understand there is a exhaust test you can do using Sea Foam. Is there a thread that shows a step by step how to or can somebody explain it ? Please identify the how and where please - I am somewhat a newbie here. The exh manifold maybe cracked - I don't know. Need help. Thanks !