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I have a 1998 e-350 with the v-10 motorhome chassis. the…

Customer Question
Hi I have a...

Hi I have a 1998 e-350 with the v-10 motorhome chassis. the speedo is not working. I have replaced the vss on the transmission. still no operation. ware do I go next? there is not any warning lights on.

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

There is not any engine or abs lights on

Mechanic's Assistant: Are you fixing your E350 yourself? What have you tried so far?

Yes I am and I have only replaced the VSS on the transmission

Submitted: 7 months ago.Category: Ford
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Answered in 8 minutes by:
11/21/2017
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago
Cesar Jimenez
Category: Ford
Satisfied Customers: 179
Experience: shop foreman at carmona repair
Verified

hi im cesar jimenez and i will be helping you today. im reviewing your question and will be with you asap

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Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

the vss you changed is on the tail housing of the transmission right?

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Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

are there any DTCs to read? codes

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Customer reply replied 7 months ago
No Codes found
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

do you have a part number on the vss that was installed and did you compare the faulty and new part?

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Customer reply replied 7 months ago
STD SC37 is the parts # and looked to be the exact replacement.
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

do you have a E4OD or 4R70W transmission?

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Customer reply replied 7 months ago
ware do I find that info?
Customer reply replied 7 months ago
its and overdrive transmission
Customer reply replied 7 months ago
do you want the VIN# ?
Customer reply replied 7 months ago
e4od
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

and also check to see if there is a speed sensor on you rear end on the differential

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Customer reply replied 7 months ago
there is one on the rear end
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

thats the one that sends the signal to the speedometer on your instrument cluster. change the sensor on your rearend and that will resolve your complaint. thanks for choosing justanswers and have a happy holidays thank you cesar jimenez

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Customer reply replied 7 months ago
that did not do it! but I spent another 50$. ok now what do you have some wiring pin outs / tests or some other testing procedure's or are you going to just tell me to buy an instrument cluster?
Ford Mechanic: Cesar Jimenez,
 replied 7 months ago
I have some pinpoint test for you..
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Ford Mechanic: Cesar Jimenez,
 replied 7 months ago

for the first test you will need a digital multimeter.

1. mesure resistance of VSS POSITIVE CIRCUIT

measure between pin 58 of the ECM and the positive of the VSS

2. measure resistance of VSS NEGATIVE CIRCUIT

measur between pin 33 of the ECM and the negative of the VSS

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Ford Mechanic: sprinkles08, ASE Certified Technician replied 7 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Ford
Satisfied Customers: 24,066
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

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