1985-1996 Fleetwood and Brougham Forum Discussion, 1987 Brougham D'Elegance: Rumbling noise from under vehicle/ speedometer not working in Past Cadillac Vehicle Discussion; Hi, everyone, just wondering if anyone could offer any help or explanation to why this is happening. There is a ...
- 12-15-13 08:08 PM #1Cadillac Owners Member
- Automobile(s): 1987 Fleetwood Brougham D'Elegance
- Join Date
- Dec 2013
1987 Brougham D'Elegance: Rumbling noise from under vehicle/ speedometer not working
Hi, everyone, just wondering if anyone could offer any help or explanation to why this is happening. There is a distinct rumbling coming from under the vehicle when the car is in motion. Also, my speedometer doens't appear to be working. Any And all help is greatly appreciated
- 12-15-13 09:25 PM #2
I just had this problem with mine. It's the vehicle speed sensor that is on the transmission. kind of an expensive part. But it is really easy to change. Jack up the car and crawl under on the drivers side. You will see a wire harness to the back of the transmission, going to a round sensor about the size of a baseball. there is one 10mm bolt that holds it in there. once you remove the bolt, you kinda have to pry it out (there is a O-Ring to seal it on the sensor). Watch out for transmission fluid, as some will come out. also there will be a plastic gear that will probably fall out. Make sure you put the pointy end towards the transmission. Then it is reverse order to put the sensor back in. Also make sure you get the right one according to your axle gears.
- 12-16-13 02:19 PM #3Cadillac Owners Enthusiast
- Automobile(s): 85 FW Brougham, 68 Wildcat 'vert, 92 & 96 Roadmaster Wagons
- Join Date
- Jan 2011
- Southern Ontario
Re: 1987 Brougham D'Elegance: Rumbling noise from under vehicle/ speedometer not work
When did they stop using the Speedometer Cable. My 85 is cable driven. Were the Olds 307 powered setups using the tranny mounted speed sensors?
- 12-16-13 03:23 PM #4
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