Big "puff", now barely runs...HELP!
Thread Starter
|
Junior User
Joined: Mar 2008
Posts: 53
Likes: 0
Big "puff", now barely runs...HELP!
Does anyone have any guesses to what I'm looking at here? I started my Expy today (5.4l) and when I put it in gear and hit the gas I heard a LOUD pop/poof and then lost all power.
Now the truck starts but just barely, and has the puffing/huffing sound while it's trying to run. I can't see anything visibly wrong. No plugs popped out, no leaks from the heads, the exhaust seems intact.
I'm not sure where to start, Cat collapsed? Head gasket (although the coolant is full and no leaks), Timing belt/chain?
The truck has 105k on the odometer and ran great up until this morning! Also the check engine light did not come on...somehow!?!?
HELP!
Now the truck starts but just barely, and has the puffing/huffing sound while it's trying to run. I can't see anything visibly wrong. No plugs popped out, no leaks from the heads, the exhaust seems intact.
I'm not sure where to start, Cat collapsed? Head gasket (although the coolant is full and no leaks), Timing belt/chain?
The truck has 105k on the odometer and ran great up until this morning! Also the check engine light did not come on...somehow!?!?
HELP!
Last edited by Expansivebandvan; Sep 22, 2008 at 11:31 AM. Reason: addition
Fleet Owner
Joined: Apr 2008
Posts: 24,318
Likes: 5,128
From: 0,0,1
What you could've heard was a muffled backfire in the throttle body. Your fuel pump could've went and now you're not getting the correct amount of fuel. First thing to do is connect a pressure gauge to the fuel rail and see what the fuel pressure is.
Junior User
Joined: Aug 2008
Posts: 80
Likes: 0
I had pieces of my cat in my Jeep break loose and clog the outlet. Wouldn't run right after that, virtually no power. Easy to check on the jeep as the joints were clamped not welded. Not sure about Expedition.
Trending Topics
Thread Starter
|
Junior User
Joined: Mar 2008
Posts: 53
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
