|05-21-2012, 09:34 AM||#1|
Join Date: May 2002
Location: Orange County, Calif.
Ferrari Life Posts: 1,651
I was driving around 75 in my 550 on the freeway. I noticed out the corner of my eye, the speedometer needle dropped to zero mph and then back to 75. Nothing else happen. The engine did not miss a beat, the rpm needle was steady, and nothing else was wrong. These happen about four or five times within 5 minutes. It did not happen again for the next hour.
Does anyone have any ideas as to what happen?
12 cylinders or walk
|05-21-2012, 09:47 AM||#2|
Join Date: Jan 2007
Location: far and away
Ferrari Life Posts: 5,908
Sensor. Cleaning or replacement. Not a big deal. Taz?
Guide to the Galaxy: Don't Panic
Rik -- LAH !
1990 Mondial T Cabriolet : Red/Tan
1995 456 GT 2+2 : Roso Metalizzato [Fer 311/C] & Tan
|05-21-2012, 11:13 AM||#3|
Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 7,449Name: Terry H Phillips
Rik, Bart- Sounds like a loose connector somewhere. I do not actually know where the speedometer signal originates on a 550. On the 575M and 360, the Motronic ECU determines speed by looking at engine speed and an angular speed sensor on the transaxle case. I am guessing the 550 is similar. Maybe one of the pros knows.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.
|05-21-2012, 01:00 PM||#4|
Join Date: Apr 2004
Ferrari Life Posts: 14,891
Or loose connection.
Current: F40, F50, 430 Scuderia
Past: 612 Scaglietti, 360 Modena, 360 Challenge, 550, 575, 365BB, 512BB, 456 GT, F355 GTS, 365 GTB/4 Daytona, 308 GTB