does anyone know how to test the speedo on a allison 545<br/>
90 gv speedo not working December 21, 2011, 11:00:35 pm does anyone know how to test the speedo on a allison 545 Quote Selected
Re: 90 gv speedo not working Reply #1 – December 22, 2011, 03:09:47 am I used these guys for years a couple of times a month average: North Hollywood Speedometer and Clock Company. Serving your gauge needs since They are one of the largest VDO shops.Pierce Quote Selected
Re: 90 gv speedo not working Reply #2 – December 22, 2011, 08:35:34 am im not sure which part is not working.anyone know of an easy way to check it Quote Selected
Re: 90 gv speedo not working Reply #3 – December 22, 2011, 09:32:15 am If Allison weighs 545, I don't think he should wear a Speedo in the first place. Quote Selected
Re: 90 gv speedo not working Reply #4 – December 22, 2011, 09:37:40 am There is a speed generator on the tranny case. Start there first. Quote Selected
Re: 90 gv speedo not working Reply #5 – December 22, 2011, 10:09:08 am Very simple, using a DVM, on Freq. read the frequency as you are driving.Just connect the two meter leads to the two wires coming from the trany speed generator.If you get a good reading, the sender is OK. these senders are a simple device, you most likely will see the frequency referring to your speed as the dial on dash is a freq meter. That is how I have trouble shot that area of tach readings and speed meter, (Not the wearable model) Quote Selected
Re: 90 gv speedo not working Reply #6 – December 22, 2011, 10:15:44 am Quote from: Horace B. Cupp – December 22, 2011, 09:32:15 amIf Allison weighs 545, I don't think he should wear a Speedo in the first place. if he weighs that much i dont think you would see the speedo lol Quote Selected
Re: 90 gv speedo not working Reply #7 – December 22, 2011, 10:16:53 am thanks dave ill try that next time i drive it Quote Selected
Re: 90 gv speedo not working Reply #8 – December 22, 2011, 10:29:20 am Mike,Instrument Exchange 713.923.6104 in Houston is dealer and repair station for the speedometer and sending unit. Call Joe or Steve for an additional resource and parts if needed at a very good price. I have purchased several things from them. They know their products very well. Quote Selected
Re: 90 gv speedo not working Reply #9 – December 22, 2011, 11:17:21 am Funny name. Was at a car dealership in the 80's - every used car had a file with a service invoice for the service that was preformed to prep the car before it went on the lot. On eery invoice was the entry "fix clock". I thought it strange that every car would have a broken electric clock until i realized that it was code for "turn back the speedometer".thankfully, those shenanigans are pretty much in the past (I think) Quote Selected
Topic: 90 gv speedo not working