Speedo needle keeps needing a rest............

[Alpine_motorsport]

Im having a re occuring problem with my speedo, the needle will be working fine and then just driving down the road it will fall down to zero untill it decideds its had enough of a rest or I turn the igniton off then back on again. It happens more frequently when I drive the car hard.........Anyone else had a problem like this?? Where abouts is the speed sensor on the car as this seems like the logical place to start

 

[Craig Ed]

I have had this problem but with the rev counter. I was told that the TDC sensor being monitored by two ecu's (ITB setup and piggyback omex). So it gets mixed up.

However i also had the problem when the alternator botl snapped and caused it to come forward and not noticed it thus it pulled the connection off.

This was all happening on revving hard about 5k to 6k

 

[_WILL_]

happened to me on a pug 306, while it was having it A/C refilled i asked they to check it, but they found nothing wrong but just checked all connections and gave them a clean. It never failed again after that so i guess it was just a bad connection. i am not sure where it was tho cos it wasn't me that fixed it!

 

[Sean6545]

Its 100% the speedo tranducer, on the back of the gearbox, aporx £20 from renault iirc.

 

[DannoTheGreat]

yeah sensor, just done 1 myself in the last few days. £22.50

 

[TomBear]

Its 100% the speedo tranducer, on the back of the gearbox, aporx £20 from renault iirc.

yeah sensor, just done 1 myself in the last few days. £22.50

agreed

got mine done for free under the dealers guarantee

 

[Alpine_motorsport]

Mega, thanks for that! Id got a feeling it was gonna be something like that!!!!

 

[Bloooor]

is yours a cup mate?

This is my on going thread...

http://www.cliosport.net/forum/showthread.php?t=448571

 

[Sean6545]

Some early 172's had mechanical pick up too.

 

[Bloooor]

Some early 172's had mechanical pick up too.

explain. So could mine have a sensor or does it work from the ABS rings?

 

[Bluebeard]

Leave it.

If the speedo don't work, nor will the trip computer! Low Mileage car FTW!

 

[Bloooor]

Leave it.

If the speedo don't work, nor will the trip computer! Low Mileage car FTW!

I like your theory....

but I also like knowing when to change my cambelt...

 

[Bluebeard]

Cambelt shambelt. Its all about guesswork.

 

[ChrisCurr]

I've got the same problem on my Ph1, has anyone got a photo of sensor so I know what I'm replacing, Also exactly where it is would be good.

 

[DannoTheGreat]

Cambelt shambelt. Its all about guesswork.

i like your style!

 

[DannoTheGreat]

I've got the same problem on my Ph1, has anyone got a photo of sensor so I know what I'm replacing, Also exactly where it is would be good.

i can get you some pics tomor. it's only a 2 min job to change it

 

[ChrisCurr]

Cheers Danno, much appreciated

 

[Daz.]

I thought the sensor wasn't on the gearbox on a 172? Don't ph2's get it from somewhere else?

 

[DannoTheGreat]

sensor

an where its located, on the right next to the manifold

 

[ChrisCurr]

Exellent! Thanks a lot for the photo's. So does it just pull out?

 

[DannoTheGreat]

yeah, comes out pretty easy. just unplug it an pull it out buddy