Gauges jump at startup
Gauges jump at startup
Thread Starter
|
New User
Joined: Jun 2002
Posts: 5
Likes: 0
Gauges jump at startup
My 99EXP-EB has started to do something funny when I first start the engine in the mornings. As normal all the lights in the dash come on, then when I start the engine the tach and speedometer needle goes to the max (all the way to the opposite side) and the return back to continue to function normally.
I do not know what could cause this behavior on my tach and speedometer, those anyone have experience something like this ?.
I will appreciate any help or suggestions.
Thank you
Roberto.
I do not know what could cause this behavior on my tach and speedometer, those anyone have experience something like this ?.
I will appreciate any help or suggestions.
Thank you
Roberto.
Logistics Pro
Joined: Oct 2000
Posts: 3,960
Likes: 5
From: All over Texas
Gauges jump at startup
The gauges will do this each time the PCM is reset. I couldn't imagine why your PCM would be resetting by itself....usually takes disconnecting the battery for a period of time.
Thread Starter
|
New User
Joined: Jun 2002
Posts: 5
Likes: 0
Gauges jump at startup
Thank you Jim for your reply.
I have a theory that what is doing this is my 3 year old battery. Perhaps at the first start is taking all the juice to start the engine and the PCM reset it self. Just a theory....
I have a theory that what is doing this is my 3 year old battery. Perhaps at the first start is taking all the juice to start the engine and the PCM reset it self. Just a theory....
Senior User
Joined: Jan 2002
Posts: 176
Likes: 1
From: TEXAS!
Gauges jump at startup
FTE Rocks!!! I had the same problem and was about to take advantage of the extended warranty then I read this string and that along with noticing that the Expy was getting a little hard to start. I replaced the Battery and viola! The guages don't jump any more at startup. Whohoo!!!
99 F250SD EC 5.4L 3.73 285 BFG/ATs...
99 Expy EB 5.4L
99 F250SD EC 5.4L 3.73 285 BFG/ATs...
99 Expy EB 5.4L
New User
Joined: Dec 2002
Posts: 6
Likes: 0
Gauges jump at startup
sweet, Mine does the SAME thing.. sometimes the windshield wipers run once at startup as well, very very confusing, esp if you have a lil bird dookey your trying not to smear on the windshield!!
I will try changing the battery.. Thanks guys.. YOU ROCK!
I will try changing the battery.. Thanks guys.. YOU ROCK!
Trending Topics
Freshman User
Joined: Jan 2003
Posts: 43
Likes: 0
From: Los Angeles, California
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
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
Cross-Country
Joined: Jun 2000
Posts: 92
Likes: 0
From: Central Florida
Gauges jump at startup
I have this same problem and I am curious about what harm if any this does to PCM or other systems. Does this mean that the PCM has to relearn my driving habits every time I start the truck. I will be getting a new battery to see if that stops the problem
Freshman User
Joined: Jan 2003
Posts: 43
Likes: 0
From: Los Angeles, California
Gauges jump at startup
It didn't seem to harm any systems that I can tell. Whether it re-learns or not is sort of irrelevant, considering after your new battery it will relearn hopefully for the last time.
AG
AG
Thread
Thread Starter
Forum
Replies
Last Post
rinkrat99
1997 - 2006 Expedition & Navigator
1
Nov 13, 2014 09:40 PM
twincam00
1987 - 1996 F150 & Larger F-Series Trucks
8
Dec 2, 2012 09:12 PM
spottedsquirl
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
20
Jun 30, 2009 06:15 AM
