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98 ram 1500 speed sensor question.
#1719404
01/01/15 04:03 PM
01/01/15 04:03 PM
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Joined: Dec 2007
Posts: 85 central illinois
65dodgebob
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Joined: Dec 2007
Posts: 85
central illinois
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My 98 1500 keeps throwing a code for the output speed sensor. I have changed the one in the rear end housing, cleaned it out and put fresh gear lube in it. Still puts the check engine light on. Any ideas? ) I should mention the speedo is working fine. Truck has about 150 k miles.
Last edited by 65dodgebob; 01/01/15 05:25 PM.
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Re: 98 ram 1500 speed sensor question.
[Re: DartGTDan]
#1719410
01/03/15 05:21 AM
01/03/15 05:21 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
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Balt. Md
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Quote:
As a test, you can swap the ISS (Input Speed Sensor) with the OSS (Output Speed Sensor). If the fault moves from OSS to ISS you have a bad sensor. If the fault remains the OSS you may need to look at the OSS wiring.
From what I remember that wont work as the threads are different on them. But what trans do you have the 46RE or is it a Hemi with the 45RFE ? The 46RE has a speed sensor in the overdrive housing thats just for the gov so the PCM knows the driveshaft road speed and it usually will shift funny when it goes bad since the PCM calculates gov pressure by it. The 46RE has no input sensor as it just controls gov pressure electronically. If its the 45RFE then it uses the input and output sensors so the controller knows the input shaft speed and the output shaft speed to control the solenoids for the electronic shift opperation as it needs to know eng rpm and input shaft speed rpm to calculte it with output shaft rpm to know when to shift. Ron
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Re: 98 ram 1500 speed sensor question.
[Re: J_BODY]
#1719412
01/03/15 03:09 PM
01/03/15 03:09 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
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Too Many Posts
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Posts: 27,421
Balt. Md
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Quote:
No Hemi's in 98.... and NO input speed sensor on a 46RE trans which this truck will have...
Yea I been out of the dealer since 2011 and forgot what year the Hemi came on board. Has to do with old age or something. Ron
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Re: 98 ram 1500 speed sensor question.
[Re: 383man]
#1719413
01/04/15 01:24 AM
01/04/15 01:24 AM
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Joined: May 2003
Posts: 13,201 aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,201
aZLiViN
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Quote:
Quote:
No Hemi's in 98.... and NO input speed sensor on a 46RE trans which this truck will have...
Yea I been out of the dealer since 2011 and forgot what year the Hemi came on board. Has to do with old age or something. Ron
Keep thinking I should send you my old Autometer shift light.... I know you're going to forget to shift soon!
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Re: 98 ram 1500 speed sensor question.
[Re: J_BODY]
#1719414
01/04/15 04:03 AM
01/04/15 04:03 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
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Too Many Posts
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Posts: 27,421
Balt. Md
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