Engine Hesitation
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Junior Member
Joined: Dec 2005
Posts: 1
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Engine Hesitation
I have a 2001 Ford Expedition with the 4.6
It has about 73000 miles.
I have had it for a little over a year now.
When I first bought it, it had a slight hesitation that seemed to go away once the engine warmed up.
Now the hesitation is constant.
I have replaced the fuel and air filters with no change.
However when I run high test gas it seems to help it.
Any suggestions?
It has about 73000 miles.
I have had it for a little over a year now.
When I first bought it, it had a slight hesitation that seemed to go away once the engine warmed up.
Now the hesitation is constant.
I have replaced the fuel and air filters with no change.
However when I run high test gas it seems to help it.
Any suggestions?
Senior Member
Joined: May 2005
Posts: 534
Likes: 0
From: Louisiana
Could be one of the following:
1. Spark plugs
2. Plugged EGR ports in TB
3 EGR Valve
4. DPFE Sensor
4. Coils
I would change plugs, then remove TB to clean EGR ports.
"When I first bought it, it had a slight hesitation that seemed to go away once the engine warmed up. Now the hesitation is constant."
Really sounds like clogged EGR ports...but I'd change plugs at 73,000 anyway.
If that doesn't work, come back, and we'll go to the next steps. Good luck.
1. Spark plugs
2. Plugged EGR ports in TB
3 EGR Valve
4. DPFE Sensor
4. Coils
I would change plugs, then remove TB to clean EGR ports.
"When I first bought it, it had a slight hesitation that seemed to go away once the engine warmed up. Now the hesitation is constant."
Really sounds like clogged EGR ports...but I'd change plugs at 73,000 anyway.
If that doesn't work, come back, and we'll go to the next steps. Good luck.