Dodge Ram Van The full size Dodge Ram Van that showed that we can go and do as we please. Discuss the Dodge Ram Van here today.

1998 ramvan1500 3.9 speedo not working/ABS and Brake light on

Thread Tools
 
Search this Thread
 
Old Aug 26, 2012 | 12:39 PM
  #11  
alloro's Avatar
alloro
Van & CUV Section Moderator
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2006
Posts: 5,379
Likes: 116
Default

There are two different sensors in play here. The one on top of the rear differential is for the ABS system. The second one is mounted on the rear of the tranny and it controls the speedo, engine controls, and tranny shift points.
 
Reply
Old Aug 26, 2012 | 10:51 PM
  #12  
lanesharon's Avatar
lanesharon
Professional
Joined: Nov 2006
Posts: 135
Likes: 0
From: Arizona
Default

Got it at O'Reilly's today. They called it an 'ABS Sensor'. Was a pistol to get out of the differential housing, without the car jacked up, and I have no way of jacking it up. That O ring did not want to let go.

In any event, trying to get the new one back in is proving to be just as tough. It does not want to seat itself past that O ring. I have no way of 'pressing' it in place.

Does anyone have any tricks to accomplish this, please let me know??
 

Last edited by lanesharon; Aug 27, 2012 at 10:29 AM.
Reply
Old Aug 27, 2012 | 02:02 AM
  #13  
BilltheDrummer94's Avatar
BilltheDrummer94
Rookie
Joined: Feb 2012
Posts: 69
Likes: 0
Default

Maybe a vacuum leak is my whole problem? I just noticed that my a/c won't work at all until it's turned to the 4th notch. It seems to be new problem. Could this cause the cylinder 5 misfire? And perhaps all of my problems? The only code I'm getting is the P0305. By the way was that a definative no on the brake problem? The re-illumination is normal?

Thanks,
Bill
 
Reply
Old Aug 27, 2012 | 10:23 AM
  #14  
lanesharon's Avatar
lanesharon
Professional
Joined: Nov 2006
Posts: 135
Likes: 0
From: Arizona
Default

Bill,

I had a similar problem a couple of months ago. (Not sure if maybe it is the lousy way that the dealership connected a new wire from the supposedly new PCM to the supposedly new transmission sensor, that is causing all of these other electronic sensors/relays to blow.)

To get back to the blower for the A/C. Mine would only run on the highest setting for both A/C and heat. So, it was obvious it was the blower itself, not the heat or A/C systems. If I am right, it is most likely the blower motor relay. Usually mounted under the hood, passenger side, on the heater box. I took mine off and brought it into the auto parts store to make sure I got the right part.
 
Reply
Old Aug 27, 2012 | 11:12 AM
  #15  
DoubleWasp's Avatar
DoubleWasp
Rookie
Joined: May 2012
Posts: 95
Likes: 0
From: Miami, Florida
Default

If your AC only runs on the highest setting, the problem is your blower motor resistor, mounted on the right front of the HVAC box if looking at it from the front. The only reason you get the highest setting when the blower motor resistor has trashed is because the highest setting bypasses the blower motor resistor.
 
Reply
Old Aug 27, 2012 | 12:37 PM
  #16  
lanesharon's Avatar
lanesharon
Professional
Joined: Nov 2006
Posts: 135
Likes: 0
From: Arizona
Default

I worked on the golf cart, chainsaw, and finally the van last night and I was tired and dumb, by then. Got up this am, put the metal cage around the sensor, and down it went. Sheesh.

All lights are off. So, it was that 'ABS sensor'.
 
Reply
Old Feb 14, 2013 | 12:26 PM
  #17  
spanishgrass's Avatar
spanishgrass
Registered User
Joined: Aug 2010
Posts: 18
Likes: 0
From: Colorado
Default Intermittent reading

I've a similar problem with my Van. 1500. The speedometer needle doesn't come off the peg till I reach 35mph. Its accurate after that because I had it checked. 3.9 engine, auto trans, 240,000 miles on engine. Very reliable vehicle.
 
Reply
Old Feb 17, 2013 | 11:11 AM
  #18  
spanishgrass's Avatar
spanishgrass
Registered User
Joined: Aug 2010
Posts: 18
Likes: 0
From: Colorado
Default Follow up

I've located the Rear sensor, removed and found no visible problems, however after reinstalling the speedometer needle was worse than before, so i'm quite sure I've found the problem. Part is on order. I also uinderstand there is a second sensor on the tranny, but I am unable to locate it. I purchased a tranny sensor but there is nothing like it on the tranny. Thoughts anyone. There are only 2 devices on this tranny with wire connections and both are much smaller than the sensor I purchased. Every parts store I called said there were 2 sensors but there is none to be found on the tranny.
 
Reply




All times are GMT -4. The time now is 10:23 AM.