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Discussion Starter · #1 · (Edited)
I am gonna be towing my 1998 Taco with my motorhome on an extended trip lasting a number of months and a lotta miles. Will my speedo odometer be registering these miles (haven't towed it yet or I'd know already) and if so, is there any way (fuse? cable?) to undo or stop the mileage accumulation while under tow?
 

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What year is your truck? If it's a digital odo display, I dont think the computer would register miles if the truck isnt on.
 

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Not only is it illegal but it will trip a CE light. Your ECU reads the speed signal. If you have an auto tranny or rear locker etc. it's used for that stuff too.
 

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Dick Foster said:
Not only is it illegal but it will trip a CE light. Your ECU reads the speed signal. If you have an auto tranny or rear locker etc. it's used for that stuff too.
how will pulling the speedo connector plug throw a light when the truck isn't even running...just being towed?
heck, disconnecting the battery should do the same thing.
 

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Unplug the speed sensor connector located near where the rear driveshaft connects to the transmission. Re-connect before you start the truck and drive it.
 

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Or just disco the rear driveshaft at the diff and hang it up outta' the way.
 

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AK98Taco said:
Yes, but if the truck is off how will the ECU have power to realize the truk is moving?
 

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I see what you're talking about now. Sorry I mis understood the question.
Just tow it. Since the engine isn't running it won't register anything. If it does, just unplug the speed sensor from the transfer case, passenger side toward the rear or even disconnect the rear drive shaft at the diff end and tie it to the frame rail up out of the way.
 

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Removing the drive shaft would be the safest as stated above. Also the least wear and tear on your drive gear.
 

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YoTRacer158 said:
Yes, but if the truck is off how will the ECU have power to realize the truk is moving?
The ECM has power for memory and anything disconnected will make itself apparent when the ignition is turned on again. Disconnecting the battery will alleviate this.
 

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Not unless you reconnect the sensor before you start it up. The ECU doesn't so sensor scans or look for input when idle.
On the other hand if you disconnect the battery the learned fuel and timing trims start out with the learning procedure all over again from the base maps so it's definatelly not a good idea to do that.
 

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Dick Foster said:
Not unless you reconnect the sensor before you start it up. The ECU doesn't so sensor scans or look for input when idle.
On the other hand if you disconnect the battery the learned fuel and timing trims start out with the learning procedure all over again from the base maps so it's definatelly not a good idea to do that.
If you reconnect the sensor before reconnecting the battery.
 

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No all he has to do is reconnect the speed sensor before starting the truck.
If he's going to do it a lot of times, it may be worthwhile to put a switch in the circuit to make it easier.
 

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tbplus10 said:
Why not get a driveshaft disconnect?
Or in a perfect world you could get locking hubs to fit the rear axle.
Exactly. It's second nature for RV folks.

FRORF's full-floater rear end conversion with manual hubs would work as well, for just a hair under 1 grand. :D
 

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Put it on a car trailer. problem solved, no constant wrenching the DS when you get to and leave your stops... :2cents:
 
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