1994 Firebird
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1994 Firebird
1994 Firebird Transmission
I have a 1994 Firebird that has the 4L60-E Automatic Trasnmission.
On the same day my transmission quit shifting, my speedometer also quit working. All the transmission people tell me I need to re-build my transmission.
I am not buying that the ELECTRONIC transmission that relies on the car speed to shift and the speedometer both going out at the same time being independent problems.
I suspect it is the PCM or the speed sending unit. I do not know exactly how the PCM gets speed information used to shift. Does this input come from the transmission, How can I see if the PCM is getting car speed
I have a 1994 Firebird that has the 4L60-E Automatic Trasnmission.
On the same day my transmission quit shifting, my speedometer also quit working. All the transmission people tell me I need to re-build my transmission.
I am not buying that the ELECTRONIC transmission that relies on the car speed to shift and the speedometer both going out at the same time being independent problems.
I suspect it is the PCM or the speed sending unit. I do not know exactly how the PCM gets speed information used to shift. Does this input come from the transmission, How can I see if the PCM is getting car speed
Last edited by RedEye; Jun 11, 2006 at 05:28 PM.
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