Navigator 4AWD binding
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Navigator 4AWD binding
Hi guys just bought a 2000 navigator for a great price. Needs some work but i was a mechanic for a few years but this one has me stumped. the truck will bind when driving in 4AWD. I did some searching on the forums and i pulled the #104 fuse and the binding stopped now it drives normal but im assuming its only driving in 2WD. I put the fuse back in and start driving and again it starts popping. A few of the threads said to replace the speed sensors in the transfer case. I got under the truck and found both sensors but every car part store and dealer i go to has no idea what im talking about. Since you cant get them out without cutting the wires cause there is no plug to unplug them they go into the shift motor harness i diddnt bring them with me. I was calling them a magnetic speed sensor but they were giving me abs wheel sensors. even the dealer was stumped. Does anyone know what they are called or a website i can buy them from ? Thanks !!
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If you want to be sure just switch into 4WDH and go for a test drive. If it's still popping the same, then it's not the sensors, it's the tires. I guessing it's more likely going to be a case of mismatched tires front to back.
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So I tried to drive it with four-wheel-drive on and it still binds exactly the same as all-wheel-drive the tires are all the same size but they are different brands does that matter
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Yes, it matters. That would suggest that they have been replaced at different times and are different diameters. The A4WD system works by checking the rpm of each corner and with different diameters the system sees that as slip.
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Ummmm, actually it is a good product because it can detect that subtle of a difference and compensate for it. If that were true wheel slip on a compromised road surface it would be kicking in 4WD sooner rather than later. Maybe you should go back to your Jeep.
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I just don't wanna waste money on tires if that's not it so does it have to be all 4 or say just the two fronts cause the rears match the fronts are different
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Surprisingly a difference of only 1/8" in diameter equals a difference of 4 revolutions per mile. Assuming the fronts are matched with each other, and the rears are matched with each other; you can try swapping a front and rear tire on one side only. This will balance the front and rear axle rotations and make the vehicle drivable while you research a tire purchase (or pull fuse #104.) If swapping the 2 tires stops the binding, you also will have confirmed the tires as being the issue.
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Ok I understand but I don't think that will work the rear tires are the same and the front tires and 2 different brands for example Michelin on the back and Goodyear and Firestone on the front. I bought the truck like that guess ill have to get 4 matched tires n see what happens
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So for the heck of it I pulled the shift motor out to check that magnet sensor behind it and I found 2 of the three wires stripped about 1-1/2 in from the sensor like the wire melted off it. The sensor was shorting out. I rear append the sensor but it still binds. I think the sensor is shot. I also took your guys advice and measured the tires they all within a 32nd of each other although there are 3 different brands on it. Any one know where I can get a new sensor ? Thanks still lovin this truck lol
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Here's my contribution after a lot of searching the part numbers we need are sw5645 and sw5644. They are called shift lever sensors not speed sensors. Hope this helps anyone! I ordered them and will let you know what happens !
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The tread depth being within 32nds of each other doesn't take the tires out of the equation. It is the difference in the diameters, and while each tire is theoretically the same, different manufacturers have different tolerances for how they manufacture. The height of a Goodyear 265/70-17 doesn't always equal the height of a Michelin tire of the same size.