How to fix a bouncing speedometer on a 1995 ford e 150 van?

Asked by Apr 20, 2015 at 10:19 PM about the 1995 Ford E-150 XL Club Wagon

Question type: Maintenance & Repair

Speedometer is bouncing as I am driving so
I don't know how fast I'm going.

6 Answers

115,765

So this must still be cable driven, you can either disconnect the speedo cable housing, remove the inner cable, clean it up some then get some white lube spray and put in as much as you can down the cable housing and then start feeding the cable down and spray some as you go around the cable, you may have to move the rig a little for the cable to contact the driven gear properly at the transmission, or you can just replace the cable housing assembly.

1 people found this helpful.
6,335

Ya, bad cable. Probably got wet somewhere along the line. pull it out, wipe it with some kerosene to clean it. Then coat it with lithium grease and feed it back into the outer cable. When it gets to the bottom, if it doesn't feel like it is all the way in, slowly rotate it as you put light downforce to get it to drop into the transmission socket. reconnect the spedo and it should work. If it doesn't then you will need a complete spedo cable assembly.

20

No cable. Electronic. Your sender (VSS) is on the rear diff and your problem is one of two issues. 1. You have a damaged tone ring in the differential and it is sending a bad signal. Only problematic between 50 and 70 MPH (80km/h and 120 km/h) 2. Burnt component(s)s or loose connection(s) on PSOM on back of speedometer. manifests as bouncing speedo all speeds and/or no odometer and/or hard shifting transmission.

1 people found this helpful.
6,335

Interesting.

115,765

If it is electronic, there is a little diode with a yellow stripe on it, they are known to be bad solder joints, use some low heat solder and resolder it back into place.

1 people found this helpful.
115,765

That's the problem with these older posts nobody ever comes back to update them. This one is over a year old and the original poster never replied back.

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