Fordmods Logo

Speedo/odometer/tripmeter error 

 

Page 1 of 1 [ 8 posts ] 

 
 Post subject: Speedo/odometer/tripmeter error
Posted: Mon Jul 17, 2006 9:01 am 
Stock as a Rock
Offline

Age: 35

Posts: 115

Joined: 6th Jun 2006

Ride: Black ED Fairmont 5.0L

Location: Sydney
NSW, Australia

Hi All,

I've got a problem with the one I love...

yes. My car.

The speedo is over-reading 10 km/h, while the odometer is also over-reading by 10 km as well.

The average km/h reading by the tripmeter is pure fiction - about half of what it should be.

Any ideas of where the fault could be?

My thoughts turn to the speedo sender unit.

What does everyone think?

Will

 

_________________

1994 Black Pearl ED Fairmont V8

9/72 XA GS 351 Auto Hardtop (Wild Violet & White Trim)

Top
 Profile  
 
 
Posted: Mon Jul 17, 2006 2:13 pm 
Parts Gopher
Offline
User avatar

Age: 38

Posts: 84

Joined: 17th Jul 2006

Location: sydney
NSW, Australia

mine is the same but 20% overeads
been like that for 4 years
i was going to get a j-car speedo adjuster once i get my new diff fitted
i was also going to get the odo fixed by a gauge shop after that and take off about 20,000k's
Top
 Profile  
 
 
 Post subject: Speedo problem
Posted: Tue Jul 18, 2006 8:49 am 
Stock as a Rock
Offline

Age: 35

Posts: 115

Joined: 6th Jun 2006

Ride: Black ED Fairmont 5.0L

Location: Sydney
NSW, Australia

Hi All,

I was wondering last night if it could be because of my wheels - 17 inches with 235/45's.

A mate of mine said his 20 inch wheels on his EB were causing an overead of 20 km/h.

Any ideas?


Will

 

_________________

1994 Black Pearl ED Fairmont V8

9/72 XA GS 351 Auto Hardtop (Wild Violet & White Trim)

Top
 Profile  
 
 
Posted: Tue Jul 18, 2006 9:59 am 
Parts Gopher
Offline
User avatar

Age: 38

Posts: 84

Joined: 17th Jul 2006

Location: sydney
NSW, Australia

the 235/45r17 (643.3mm) are pretty much the same dia as 205/65r15s (647.5mm) so shouldn't be to much of a problem
20 i would imagine stuff it up
i blamed it on dodgy digital speedo but my LTD with the same speedo seems to read correct
Top
 Profile  
 
 
 Post subject: Re: Speedo problem
Posted: Tue Jul 18, 2006 10:51 am 
Getting Side Ways
Offline
User avatar

Age: 54

Posts: 4102

Joined: 18th Nov 2004

Gallery: 10 images

Ride: PX2 Ranger 4x4 XLT Dual CAB

Location: Carrum Downs
VIC, Australia

Willy wrote:
Hi All,

I was wondering last night if it could be because of my wheels - 17 inches with 235/45's.

A mate of mine said his 20 inch wheels on his EB were causing an overead of 20 km/h.

Any ideas?


Will


A 20k differance would require a huge differance in tyre size

As blueprinted said. 235/45 would give you a speedo error of just 0.6%
If your mates running 20s theen he would need a 275/20 or 235/30 to keep his speedo accurate.

Your problem is likely to be the speedo drive or the speedo drive gear.

 

_________________

Image
She's meanness put to music and the b**ch is born to run!
Like the sign says, "speed's just a question of money. How fast can you go?"

Top
 Profile  
 
 
Posted: Wed Jul 26, 2006 7:58 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 420

Joined: 30th May 2006

Gallery: 6 images

Ride: XR6

Location: Gosford
NSW, Australia

mine is the same i put a fairmont cluster in to replace a broken xr6 one and now speedo is out, im guessing due to different diff ratio. is there a way to reset it?
Top
 Profile  
 
 
Posted: Thu Jul 27, 2006 3:29 pm 
Getting Side Ways
Offline
User avatar

Age: 54

Posts: 4102

Joined: 18th Nov 2004

Gallery: 10 images

Ride: PX2 Ranger 4x4 XLT Dual CAB

Location: Carrum Downs
VIC, Australia

Changing the cluster should not make any difference, unless the needle is in the wrong position at zero.

 

_________________

Image
She's meanness put to music and the b**ch is born to run!
Like the sign says, "speed's just a question of money. How fast can you go?"

Top
 Profile  
 
 
Posted: Thu Jul 27, 2006 6:08 pm 
Getting Side Ways
Offline
User avatar

Age: 30

Posts: 1618

Joined: 12th May 2005

Gallery: 2 images

Ride: BA 3V Tunna

Location: S.E. Melbourne
VIC, Australia

20's on an EB... s**t hot
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 8 posts ] 

Who is online

Users browsing this forum: No registered users and 9 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Tue Dec 12, 2017 10:16 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names