I6 exhaust leak
Thread Starter
|
Posting Guru
Joined: Oct 2002
Posts: 1,301
Likes: 1
From: Dededo, Guam
I6 exhaust leak
My '90 f-150 has a odd sounding exhaust leak. it will only leak when it breaks a certain pressure. if i take it easy on the gas in 1st, 2nd and 3rd gear, i won't hear it. however if i lean into it or i am in 4th anf 5th i hear it. it sound like a rapid ticking noise, and it does not seem to be anything mechanical. could it be the exhaust manifold is cracked? or maybe the gasket? any help would be appreciated.
J.R.
J.R.
New User
Joined: Dec 2001
Posts: 10
Likes: 0
From: Des Moines
I6 exhaust leak
Had a similar sound on my '93 and it turned out to be a tube from the air pump to the exhaust. Fixed it with liquid steel and a hose clamp as it looked like an expensive part part from the dealer.
New User
Joined: Nov 2002
Posts: 16
Likes: 0
I6 exhaust leak
Ok, I'm having a similar problem. A tapping noise. Just started yesturday morning. If I'm easy its not loud but if I push it it gets louder. I thought maybe it was a stuck lifter or something but I'm gonna go check my exhaust now.
New User
Joined: Nov 2002
Posts: 16
Likes: 0
I6 exhaust leak
Just checked and my tapping noise seems to be definately coming from somewhere behind or under the exhaust manifold. Haven't pin pointed the exact location yet as I don't know my way around that area too much. Still looking. I do have a metal "hose" thats covered in a woven fabric running from the exhaust manifold over the enging itself and coming down on the other side and to a round metal thing that connects in. The fabric hose is warn and frayed in several spots. And the tapping seems to be coming from that general direction. Would it be a problem to cut the worn fabric off? I mean its already got holes in it, I just don't wanna screw anything up even more. Oh the fabric is very loose too.
New User
Joined: Nov 2002
Posts: 16
Likes: 0
I6 exhaust leak
NOT FUNNY!!!!! 
With my luck it would happen.
Its probably like the "do not remove under penalty of law" tags on your pillows and mattresses.
With my luck it would happen.
Its probably like the "do not remove under penalty of law" tags on your pillows and mattresses.
Trending Topics
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
I6 exhaust leak
It's fiberglass insulation to protect all the plastic hoses nearby from the heat of the exhaust that sometimes flows thru it - it's the EGR pipe.
Leave it alone unless the ticking is exhaust blowing out of a hole in the tube, in which case you could JB Weld the hole shut using the fiberglass to keep the JB from running while it dries.
Leave it alone unless the ticking is exhaust blowing out of a hole in the tube, in which case you could JB Weld the hole shut using the fiberglass to keep the JB from running while it dries. FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Sycostang67
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
5
Jan 26, 2005 07:30 PM
Peach
1987 - 1996 F150 & Larger F-Series Trucks
1
Jun 23, 2004 09:45 PM