Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 01-04-2017, 07:05 PM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Speedo 10mph off help

2001 ranger 2.5L 5 speed stocktires 225/70/15 and the speedo reads 10mph faster than actual speed

Weird part is if i plug my scan tool into the obd port it reads the correct speed in the handheld

any help would be appreciated i searched and couldnt find anything thanks guys
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #2  
Old 01-04-2017, 07:23 PM
Kealel Kealel is offline
Bringing hell to the city
 
Join Date: Feb 2015
Posts: 2,512
Default Re: Speedo 10mph off help

Have you replaced the cluster or messed with it ever?
__________________
Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15
Quote:
Originally Posted by Logan03CO View Post
I knew you were an alright guy!
Quote:
Originally Posted by ford4thot View Post
The only reason it's worn out junk is because you've gone 70k miles without changing the oil.
Reply With Quote
  #3  
Old 01-05-2017, 08:16 AM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Re: Speedo 10mph off help

No i just bought the truck and the guy says never been touched
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #4  
Old 01-05-2017, 08:35 AM
Kealel Kealel is offline
Bringing hell to the city
 
Join Date: Feb 2015
Posts: 2,512
Default Re: Speedo 10mph off help

Hmm... first, the cluster is black with white needles and the backlight is green, right?

If so, how many miles are on it? Did they seem low for the year or the price?

Does the odometer work?
__________________
Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15
Quote:
Originally Posted by Logan03CO View Post
I knew you were an alright guy!
Quote:
Originally Posted by ford4thot View Post
The only reason it's worn out junk is because you've gone 70k miles without changing the oil.
Reply With Quote
  #5  
Old 01-05-2017, 09:14 AM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Re: Speedo 10mph off help

Cluster is black with white needles not green backlit though the truck in my avatar is not the same truck odometer an trip seem to work 148000 on truck got it for 1200$
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #6  
Old 01-05-2017, 10:01 AM
Kealel Kealel is offline
Bringing hell to the city
 
Join Date: Feb 2015
Posts: 2,512
Default Re: Speedo 10mph off help

Quote:
Originally Posted by Wes K View Post
Cluster is black with white needles not green backlit though the truck in my avatar is not the same truck odometer an trip seem to work 148000 on truck got it for 1200$
Ok, the reason I asked those questions is to see if anything was way out of the usual that screamed "this has been messed with."

It seems like nothing out of the usual though... is it consistently 10mph difference, or is the needle off more at some points than others?
__________________
Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15
Quote:
Originally Posted by Logan03CO View Post
I knew you were an alright guy!
Quote:
Originally Posted by ford4thot View Post
The only reason it's worn out junk is because you've gone 70k miles without changing the oil.
Reply With Quote
  #7  
Old 01-05-2017, 11:23 AM
bjurke bjurke is offline
Ford Tough
 
Join Date: Jul 2011
Posts: 319
Default Re: Speedo 10mph off help

Two thoughts. First I thought the 2001 ford ranger had a 2.3 liter not 2.5 as was replaced by smaller motor. Need to swap in a known good speedometer to check.
Reply With Quote
  #8  
Old 01-05-2017, 01:06 PM
sheltonfilms sheltonfilms is offline
Junkyard Dog
 
Join Date: Sep 2010
Posts: 1,833
Default Re: Speedo 10mph off help

Quote:
Originally Posted by bjurke View Post
Two thoughts. First I thought the 2001 ford ranger had a 2.3 liter not 2.5 as was replaced by smaller motor. Need to swap in a known good speedometer to check.
It was a mid year change for 2.5 OHC to 2.3 DOHC.
__________________
Automotive Electronics Engineer
2000 XLT 2.5L A/T
Mods:
Explorer OHC
Explorer Autodim Mirrors w/ Autolamps
Explorer Sport White Face Gauges
Reply With Quote
  #9  
Old 01-05-2017, 04:55 PM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Re: Speedo 10mph off help

Couple things first off it is the black speedo with white numbers and needles and is backlit green sorry ive only seen it once at night literally just bought it. Second it is consistenly 8-10 mph faster no matter the speed across the board it is consistently off
third thing I asked the seller if its been messed with in the past ie light bulbs changed or what ever he said no been off as long as hes owned it which was nine years.
I tend to think he messed with it the check engine light bulb appears to be off or out I scaned it today and have three codes pertaining to the egr and dpfe sensors so he either pulled the bulb or it has burned out overtime doesn't come on when started either.
It just bothers me that in the scan tool data section the speed is correct however its wrong at the gauge. IDK.......????????????????........
Thank you guys once again for all your help
And also it is most definitely a 2.5L not the 2.3L

----------

One other note the odometer and trip seem to be working properly
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #10  
Old 01-05-2017, 06:25 PM
Kealel Kealel is offline
Bringing hell to the city
 
Join Date: Feb 2015
Posts: 2,512
Default Re: Speedo 10mph off help

If it is consistently that amount off, I doubt the cluster was messed with as the speedo would be off a lot more at higher speeds.

However, a good way to find out if it was messed with or not is to take it out and see if the engine light is burned out or missing.

At this point with what I know, I don't think it's worth it to get another cluster to see if it works as there doesn't appear any sign of tampering and the gauge itself isn't broken.
__________________
Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15
Quote:
Originally Posted by Logan03CO View Post
I knew you were an alright guy!
Quote:
Originally Posted by ford4thot View Post
The only reason it's worn out junk is because you've gone 70k miles without changing the oil.
Reply With Quote
  #11  
Old 01-05-2017, 07:21 PM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Re: Speedo 10mph off help

Right on i just didnt think replacing the speed sensor made sense with it reading correctly to the hand held i just dont see what would throw it off between the sensor to the gauge if the sensor reads correctly at the obd 2 port
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #12  
Old 01-05-2017, 07:39 PM
cowboybilly9mile cowboybilly9mile is offline
Ford Ranger Driver
 
Join Date: Mar 2010
Posts: 4,762
Default Re: Speedo 10mph off help

Quote:
Originally Posted by Wes K View Post
Right on i just didnt think replacing the speed sensor made sense with it reading correctly to the hand held i just dont see what would throw it off between the sensor to the gauge if the sensor reads correctly at the obd 2 port
The fact that your vehicle presents a correct OBD-II speed reveals that the PCM and the items that feed the required data to it are working fine. On the other hand, it's now fairly clear your speedometer itself has an issue (defective, tampered with, etc). Having a valid OBD-II speed is the proof on this one.

***The speedometer gets the speed data from the PCM, not directly from any sensor.
__________________
2004 Ranger FX4 Level II, 5R55E, Sonic Blue Pearl

Proudly JAP/ORIENTAL free since March 2000

Last edited by cowboybilly9mile; 01-05-2017 at 07:43 PM.
Reply With Quote
  #13  
Old 01-06-2017, 01:06 PM
Wes K Wes K is offline
10lbsoftruckina5lbbag
 
Join Date: Mar 2011
Posts: 17
Default Re: Speedo 10mph off help

Right on im leanin toward the cluster being the culprit here well thanks again for all the help gentleman hopefully i can pay it forward at some point ill post an answer once i get it figured out super cold here now not gonna tear into it for a couple days
__________________
2001 Ford Ranger XLT
2.5L 5speed manual
Reply With Quote
  #14  
Old 01-06-2017, 01:16 PM
Kealel Kealel is offline
Bringing hell to the city
 
Join Date: Feb 2015
Posts: 2,512
Default Re: Speedo 10mph off help

Quote:
Originally Posted by Wes K View Post
Right on im leanin toward the cluster being the culprit here well thanks again for all the help gentleman hopefully i can pay it forward at some point ill post an answer once i get it figured out super cold here now not gonna tear into it for a couple days
If you need spare parts when you tear it apart, I may still have some extra speedo motors.
__________________
Baby Girl: 2006 White Ranger XL with many memories. R.I.P. 1/26/15
Quote:
Originally Posted by Logan03CO View Post
I knew you were an alright guy!
Quote:
Originally Posted by ford4thot View Post
The only reason it's worn out junk is because you've gone 70k miles without changing the oil.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speedo yzfoxracer Electrical Tech 8 02-24-2015 12:12 PM
Speedo went out mbxmitch Interior Tech 50 08-06-2012 09:31 PM
Speedo Off Baxter Drivetrain Tech 12 11-25-2011 08:22 PM
HELP!!! with speedo 02dangerrangerjosh Interior Tech 7 07-27-2011 05:51 AM
1986 Ranger driver side front wheel clicks loudly above 10mph dvdcpu Wheels and Tires 2 06-28-2009 07:20 AM