Idle problem....possibly EGR?
Thread Starter
|
Posting Guru
Joined: Nov 2005
Posts: 2,442
Likes: 1
From: La Grande, OR
Idle problem....possibly EGR?
Thanks in advance
Fleet Mechanic
Joined: Sep 2003
Posts: 1,279
Likes: 1
From: savannah,ga
one of 2 possibilities
the vacuum diaphram is bad
pull vacuum line and block off
if idle is better replace egr
if not then valve may have carbon build up
holding it open and allowing exhaust into
the intake
to fix remove the valve and clean it out
or replace as needed
the vacuum diaphram is bad
pull vacuum line and block off
if idle is better replace egr
if not then valve may have carbon build up
holding it open and allowing exhaust into
the intake
to fix remove the valve and clean it out
or replace as needed
Thread Starter
|
Posting Guru
Joined: Nov 2005
Posts: 2,442
Likes: 1
From: La Grande, OR
ok, pulled the green vacuum line and blocked it off. No different. Pulled EGR off and it works just fine, I can move the valve with little effort by applying vacuum to the tube, but there is a lot of carbon in there so how do I clean it?
More info on the idle problem....its not high, it sits at 1000 when I let off the throttle, then it goes down to 700 and starts sounding like theres a big cam in it with an extremely lopey idle, bouncing around from 600-800.
But when I pulled the EGR and put my thumb over the hole in the intake, the idle was fine and it ran perfect, so Im guessing it needs to be cleaned?
More info on the idle problem....its not high, it sits at 1000 when I let off the throttle, then it goes down to 700 and starts sounding like theres a big cam in it with an extremely lopey idle, bouncing around from 600-800.
But when I pulled the EGR and put my thumb over the hole in the intake, the idle was fine and it ran perfect, so Im guessing it needs to be cleaned?
Last edited by nighthawk285; Feb 8, 2007 at 10:01 PM.
Thread Starter
|
Posting Guru
Joined: Nov 2005
Posts: 2,442
Likes: 1
From: La Grande, OR
Trending Topics
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
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