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 10-29-2009, 04:02 PM
ray_vtx_1800c ray_vtx_1800c is offline
Learning to use the forums
 
Join Date: Oct 2009
Posts: 12
Default Computer Module

My speedometer say 50 and my GPS say 61. The dealer recommend checking the connection to the computer. Anybody know where the Computer Module is located in a 2004 Ford Ranger XL 2x4?

Ray

Last edited by ray_vtx_1800c; 10-29-2009 at 04:29 PM.
Reply With Quote
  #2  
Old 10-29-2009, 04:59 PM
Johnbaum13 Johnbaum13 is offline
<-----Buzz Killington
 
Join Date: Jul 2009
Posts: 1,232
Send a message via Yahoo to Johnbaum13
Default

What size tire are you running? A larger than stock tire will cause this kind of discrepancy.
__________________
I got my Jesus on the dashboard, but the Devil's under my hood!
Reply With Quote
  #3  
Old 10-29-2009, 05:19 PM
ray_vtx_1800c ray_vtx_1800c is offline
Learning to use the forums
 
Join Date: Oct 2009
Posts: 12
Default

Suppose to be 225/70R15 and I have 225/75R15. Is that enough to cause 11 mph difference? Plus the needle drops like 11 mph below zero.
Reply With Quote
  #4  
Old 10-29-2009, 05:31 PM
Johnbaum13 Johnbaum13 is offline
<-----Buzz Killington
 
Join Date: Jul 2009
Posts: 1,232
Send a message via Yahoo to Johnbaum13
Default

Well then it sound like the needle is what needs to be adjusted doesn't it?

Pull the cluster out and fix it.
__________________
I got my Jesus on the dashboard, but the Devil's under my hood!
Reply With Quote
  #5  
Old 10-29-2009, 06:35 PM
ray_vtx_1800c ray_vtx_1800c is offline
Learning to use the forums
 
Join Date: Oct 2009
Posts: 12
Default

Just got back from Walmart. Got 4 tires 225/70R15 and still have same problem. I tried adjusting the needle and problem returns when truck sit turned off for a couple minutes. I just disconnected the battery and now I going to take it for a test ride.
Reply With Quote
  #6  
Old 10-29-2009, 06:46 PM
STL STL is offline
...............

 
Join Date: May 2009
Posts: 23,398
Default

Are you talking about the PCM (power control module) if so it is on the passenger side under the hood up on the fire wall.
Disconnect neg. battery cable
Loosen center bolt disconnect PCM connection
Remove 2 nuts that hold the PCM to the firewall and remove PCM

__________________
2005 Edge

Reply With Quote
  #7  
Old 10-30-2009, 07:34 AM
ray_vtx_1800c ray_vtx_1800c is offline
Learning to use the forums
 
Join Date: Oct 2009
Posts: 12
Default

Fixed

Cleaned PCM connector using MAF Sensor cleaning. Did not have to completely remove PCM. It's been 2 hours with NO problems. Actually, truck sounds and run better. Will post message if problem returns.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
88 ranger ignition module... onebad86gt Electrical Tech 3 12-01-2010 09:46 AM
here's a computer question for you. greyghost Music/Movies/Computers/etc. 35 02-27-2010 08:48 PM
Ignition module location on 1991 3.0 Eagle23 3.0 Vulcan Tech 11 02-04-2010 02:28 PM
EGR Module HarborEngraver 3.0 Vulcan Tech 1 05-25-2009 05:04 AM
ignition control module where is it on a 1986 Ford Ranger pickup? bcorry123 General Ford Ranger Discussion 3 11-27-2008 09:34 PM