recalibrate speedometer
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Joined: Dec 2005
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recalibrate speedometer
I've searched all I can, now I have to ask for help.
This is my second post here so I'll give you the run-down first.
'98 f-150 4.2 5sp 2wd. I purchased it a few months ago with 28K miles. It now has just over 31k on it. I replaced the stock wheels with a set of 17 inch "take offs" from a Lincoln Navagator and new tires that totaled 31.5 inches tall (I promptly fried my clutch). I also put in 4:10 gears, replacing the too tall 3:08 gears (I highly recomend this for more pulling power). Now my speedometer is all out of wack and I am racking up way too many miles. I have been looking for a chip or whatever to fix it. I am using it as a work truck and I am very happy with it. Any ideas?
This is my second post here so I'll give you the run-down first.
'98 f-150 4.2 5sp 2wd. I purchased it a few months ago with 28K miles. It now has just over 31k on it. I replaced the stock wheels with a set of 17 inch "take offs" from a Lincoln Navagator and new tires that totaled 31.5 inches tall (I promptly fried my clutch). I also put in 4:10 gears, replacing the too tall 3:08 gears (I highly recomend this for more pulling power). Now my speedometer is all out of wack and I am racking up way too many miles. I have been looking for a chip or whatever to fix it. I am using it as a work truck and I am very happy with it. Any ideas?
Postmaster
Joined: Aug 2001
Posts: 4,532
Likes: 5
From: Trussville, Alabama
Welcome to FTE! Glad to have you here.
I do believe the dealer can reflash the computer to correct for the overall final drive changes.
Call the local Ford dealer service dept and ask them.
Also, I'd guess a speed shop with a handheld tuner could do the same thing.
Glad to hear you like your truck. How'd you find a '98 with only 28,000 miles !?
I do believe the dealer can reflash the computer to correct for the overall final drive changes.
Call the local Ford dealer service dept and ask them.
Also, I'd guess a speed shop with a handheld tuner could do the same thing.
Glad to hear you like your truck. How'd you find a '98 with only 28,000 miles !?
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