2002 Excursion "jumping forward"
Thread Starter
|
New User
Joined: Feb 2010
Posts: 14
Likes: 0
From: California
2002 Excursion "jumping forward"
Hello
I purchased a 2002 Excursion in June. Up until now, no problem. Last week the truck started to stall out when at stop lights. Tonight when I got in I noticed the tach was going from 1 to 3 and back down then back up. I drove several blocks and stopped at a light. The truck suddendly lunged forward. It scared the heck out of me and I'm now afraid to drive it.
Any advise on what this may be? I could not find anything in the recalls that mention the Excusrion doing this. I'll have it towed to dealer. Just would like to know what I may be looking at before they take it. I really love this truck and don't want to have to part with it.
Thank you for reading.
Liz
I purchased a 2002 Excursion in June. Up until now, no problem. Last week the truck started to stall out when at stop lights. Tonight when I got in I noticed the tach was going from 1 to 3 and back down then back up. I drove several blocks and stopped at a light. The truck suddendly lunged forward. It scared the heck out of me and I'm now afraid to drive it.
Any advise on what this may be? I could not find anything in the recalls that mention the Excusrion doing this. I'll have it towed to dealer. Just would like to know what I may be looking at before they take it. I really love this truck and don't want to have to part with it.
Thank you for reading.
Liz
Thread Starter
|
New User
Joined: Feb 2010
Posts: 14
Likes: 0
From: California
Thank you for your replies.
The engine is a 5.4 L V8 16 V. Automatic. It does have Cruise Control and 4 wheel drive ASB.
My apologies if this sounds ridiculous - I'm on my last 1/4 of a tank. The manual lists my tank capacity at 44 gallons. Is it at all posible that I am getting sparadic draw on the fuel pump because of low volume? I'm not really sure if that would casue the surge.
I'll let you know what the dealer has to say this weekend.
The engine is a 5.4 L V8 16 V. Automatic. It does have Cruise Control and 4 wheel drive ASB.
My apologies if this sounds ridiculous - I'm on my last 1/4 of a tank. The manual lists my tank capacity at 44 gallons. Is it at all posible that I am getting sparadic draw on the fuel pump because of low volume? I'm not really sure if that would casue the surge.
I'll let you know what the dealer has to say this weekend.
Mountain Pass
Joined: Dec 2010
Posts: 190
Likes: 0
From: Los Angeles
Honestly sounds like you might have a vacuum leak. do you hear any abnormal constant hissing noises? Your problem you are describing sounds like a the engine is actually surging, constantly trying to adjust the air fuel micture for the unmeasured extra air, causing the engine to speed up and down constantly also stalling as a result when it your coming to a stop.
More Turbo
Joined: Jul 2010
Posts: 669
Likes: 7
From: Tennessee
Check the IAC servo and the throttle position sensor. You can put an ohm meter on the throttle position sensor (TPS) to see if it is working properly. If the sensor is bad you could get unpredictable engine speeds. The same goes with the IAC servo since it controls the air through the engine and therefore engine speed.
Pull the codes on it and see what you get.
Perry
Pull the codes on it and see what you get.
Perry
Trending Topics
Thread Starter
|
New User
Joined: Feb 2010
Posts: 14
Likes: 0
From: California
My brother removed the sensor, cleaned it and the air filter. This seems to have solved the problem.
A big thank you to all who were kind enough to reply. Having guidance on what to look for sure helped us out!
A big thank you to all who were kind enough to reply. Having guidance on what to look for sure helped us out!
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
Top 10 Ford Truck Tragedies
Joe Kucinski
Cargo Master
Joined: Oct 2006
Posts: 2,097
Likes: 5
From: chicago northwest suburbs
COP going bad? was it misfiring? when they misfire the computer will try and compensate forthe low rpm by raising the idle, and it will do it very quickly as you described!
Good luck! let us know what they find.
Good luck! let us know what they find.
Thread
Thread Starter
Forum
Replies
Last Post
my50F1
6.7L Power Stroke Diesel
32
Aug 13, 2018 10:04 PM
884x4broncoII
1994.5 - 1997 7.3L Power Stroke Diesel
7
Oct 20, 2008 11:09 AM
