i have a 97 4runner and i hit 110 mph on the highway all the time and im only going like 80 or 85, its off by 10 mph at 60, and at 90 im only going 75. this is messing up my milage and i need to fix it. the fuel cuts out at 107, does anyone know what the problem is with it? and when i go to shift it in to 4 wheel drive it grinds unless i stop the vehicle. i dont know if this is related somehow? plz i need the help thanks.

 

What size tires? Im guessing your gearing is off. There are a couple links in my sig that may help, and you can search for ways to correct your speedo. There are a couple write ups.

 

How are you so sure its off? Verified by GPS or what?

It sounds like your running non stock sized tires.. Is this true..?

Here is my write up on installing a speedometer calibrator. You would have found it had you have searched.
https://www.yotatech.com/forums/f2/w...brator-213419/

 

Thanks scuba, thats the one i was hoping he would find in his search.

 

i know its not right because of gps and also 70 or 80 in third gear at only 3 or 4 grand on the tac isnt right. and my tires are the stock 265/70/r16.

 

What's the cheapest unit available? Digital Dakota has it for approximately 90bucks.

 

i dont need to fix anything digatly, theres a problem with it mechanicly. but i dont know whats wrong with it.

 

Change the speedo gears in the VSS then.. if thats what you think it is

 

were is the speed sensor located on my t-case and what does it look like?

 

Now THAT question can be found in a search.

 

i just tried and i couldnt find it becasue all they talked about is individual wheel speed sensors.

 

No actually it could be found in the link I posted earlier in this thread

 

all i asked for is a pic not a link to a walkthrough of something with pics that i dont need.
i know where it is now thank you.

 

lol even BETTER!

Really dude? Its the first pic in the link! Can you say spoon fed.

 

i said i know where it is now thank you.