my speedo is at it again
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Qship4life
- Posts: 28
- Joined: Mon Dec 19, 2005 11:26 am
- Car: 1990 Infiniti Q45
my speedo is at it again
so i was experiencing speedo problems a while back and the problem seemed to fix itself. well not for long. often while im driving around town my speedo will go dead causing the transmission to stay in whatever gear its in when it drops to zero mph. when this happens it also causes the power steering to get tight. if i shut the car off and let it sit for a while it fires up and the speedo will work fine for a few days then fail again. this has happened probally at least ten times. not sure if i should pull the dash apart just yet. wondering what you all thought. thanks
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elwesso
- Posts: 30810
- Joined: Sun Feb 23, 2003 4:52 pm
- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
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Re: my speedo is at it again (Qship4life)
sounds kinda like the sensor, IMO.
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Skibane
- Posts: 1056
- Joined: Wed Apr 26, 2006 5:33 pm
- Car: 2000 Q45 AE 110K
- Location: San Antonio, TX
Re: my speedo is at it again (elwesso)
Yep, the Automatic Transmission Control Unit uses a signal from the Vehicle Speed Sensor (or "Revolution Sensor") to help decide when to shift. The Power Steering Control Unit also uses it to add more steering assist at low vehicle speeds, and the speedometer...well, you know!elwesso wrote:sounds kinda like the sensor, IMO.
The sensor is mounted on the transmission, not behind the dashboard. Your service manual will show the exact location.