Speedo Correction
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Freshman User
Joined: Feb 2010
Posts: 35
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From: Newark, DE
Posting Guru
Joined: Nov 2009
Posts: 2,016
Likes: 3
From: NC
Hypertech makes a 'device' (not a tuner) that can change the GR and TS.
Speedometer Calibrator - Hypertech
Speedometer Calibrator - Hypertech
Senior User
Joined: Mar 2008
Posts: 173
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From: Winston Salem
Only part to that is the 1998 model. Most of the programmers do not have the adjustments for our years and started in 99. I only skimmed the link you posted, but did not find anything to say it would not work. I sent them an email asking.
Elder User
Joined: May 2006
Posts: 938
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From: Outside Boise, Idaho
If you read in the forums then speedometer correction is as simple as going in to the dealer.
The first dealer I went to charged $65.00 to make the correction, oops, called me back and said they could only correct up or down 1/2 inch (not helpful with 35s). No work, so no charge.
The second dealer said they could correct up to 35" and it cost $95.00. After dropping it off, they called, I came back, paid and drove down the road. And immediately realized the speedo was still off by the same amount. Drove right back to the dealer to tell them and the first thing they say is here is your money back.
I, of course, don't want the money, I just need the speedo corrected. I am not given access to the wrench, no one will go for a test ride, just take your money and go. And I did.
The first dealer I went to charged $65.00 to make the correction, oops, called me back and said they could only correct up or down 1/2 inch (not helpful with 35s). No work, so no charge.
The second dealer said they could correct up to 35" and it cost $95.00. After dropping it off, they called, I came back, paid and drove down the road. And immediately realized the speedo was still off by the same amount. Drove right back to the dealer to tell them and the first thing they say is here is your money back.
I, of course, don't want the money, I just need the speedo corrected. I am not given access to the wrench, no one will go for a test ride, just take your money and go. And I did.
Senior User
Joined: Mar 2008
Posts: 173
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From: Winston Salem
I called a company that specializes in speedo gears. Told them what my set up is and it took about 15 seconds for him to say I needed a 17 tooth. Got one and put it in. Now Im good to go.
Hypertech does not have anything that will work on a 98. 99+ models
Hypertech does not have anything that will work on a 98. 99+ models
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Freshman User
Joined: Feb 2010
Posts: 35
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From: Newark, DE
Alright, so the dealership may or may not be able to correct it?
I didn't check, but I assumed it doesn't have speedo gears. I'm thinking it only has speed sensors?
Oh yea, the tire size will be 245/75R/16 or 30".
I didn't check, but I assumed it doesn't have speedo gears. I'm thinking it only has speed sensors?
Oh yea, the tire size will be 245/75R/16 or 30".
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Former Vendor
Joined: Sep 2000
Posts: 2,627
Likes: 76
From: South Carolina
On most of the van we have tuned the PCM controls the speedo output which means we can correct speedo, gear changes and shift points. Find your PCM code and email me and i will pull it up to confirm.
thanks
Mike
thanks
Mike
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