havin a little trouble with my 91
#1
havin a little trouble with my 91
my truck is a 91 350 jus bought it my speedometer and odometer is out some people tell me the cluster and some tell me the speed sensor on trans. Thought maybe some one could give me some advice. I am new to this deal but there is alot of good info on anything you need to know i reckon!!
#2
Registered User
oh i had this same problem, is your truck 4x4? or 4x2? if it's 4x4 the speed sensor will be on the side of the transfercase on the drivers side. the plug may be loose/fallin out. or the gear assembly where the wires plug in may be faulty. on the 2 wheel drive i believe there should be something similar on the transmission
#3
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Join Date: Sep 2007
Location: Lancaster, PA
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some people tell me the cluster and some tell me the speed sensor on trans.
#4
DTR's Night Watchman & Poet Laureate
The VSS going out is a very common issue with these trucks and is very simple to diagnose and repair.
There are some articles in the "Stickey" that discribe what the parts are, where to find them, how to test them and replace them..
There are some articles in the "Stickey" that discribe what the parts are, where to find them, how to test them and replace them..
#6
Registered User
You need to let us know if it's 2 wheel drive or 4x4 as there are some differences in locations underneath. My 2 WD, the "D350" in my signature, has a speedo drive on the tranny. It connects to a tiny gearbox which changes the rotation speed, the "ratio drive". That connects to the VSS which responds to the rotation speed and generates the electrical signal that runs the speedo head. You can do a simple test of the speedo head by turning the hardware underneath with a drill, since the ratio drive and VSS are both shaft-driven. With your ignition on your speed needle and odo should respond. Oh and I believe welcome-to-the-forum is in order. You'll find lots of help and talent here.
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