04-11-2012, 06:39 PM | #1 |
Registered User
Join Date: Sep 2010
Location: Kerrville, TX
Posts: 87
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Speed Sensor Question
Does a speed sensor go bad all at once, or can it go in stages? On my 90 Suburban 4x4, 350 auto, 1 to 2 shift has often seemed labored for a while. Now the speedo is out. Just wondering if it's related.
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04-26-2012, 09:16 PM | #2 |
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Join Date: May 2011
Location: victoria british columbia
Posts: 6
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Re: Speed Sensor Question
speed senser only sends a signal to the ecm to operate the speedo as well to set parameters ie: timing it does not shift the tranny in a 90. Im assuming you have a 700r4 trans?
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04-26-2012, 09:41 PM | #3 |
Registered User
Join Date: Sep 2010
Location: Kerrville, TX
Posts: 87
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Re: Speed Sensor Question
700r4, yes. I finally found the capacitor on the back of the speedo was shorted and blown. Posted about the fix I and a neighbor did. I'll still need to check on the shift, but the speedo's working again. Thanks for your reply.
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