Question about 1991 Honda Accord
My auto 4cyl accord will not shift gears anymore, the rpm's just keep going up and never rev down. also my speedometer hasnt been working in a year (stays at zero) and my check engine light comes on when i slow down. and i have a green 'S' light that flashes constantly. i have been told that some of these other issues may be related to the problem in changing gears. any help please??? thanks!
It could be the computer, or the speed sensor. The speed sensor will control the speedometer, and tells the transmission at what speed to shift.
If it is the Transmission computer module (TCM/TCU) it will be located under the passenger side foot rest. Just pull the carpet back, and remove the steel panel cover using a deep 10mm socket. The TCM is usually the one on the left, but sometimes on the right. It will be the smaller of the 2 coputers. The other, is the Engine computer. When you locate the TCM, you only have to sets of wires that just snap in. Unsnap them, and you can take the cover of the TCM off with just a phillips head screw driver, and look to see if anything looks burnt out one the circuit board. If see something that looks burned, that is your problem, and will need a new one. It took me about 30 mins if that, to locate the TCM, remove it, and replace it.
If it is the Speed Sensor, you can find one online for about $21.00 at eparts.com Best of luck to you, and hope it helps. If you have anymore questions e-mail me at email@example.com
Posted on Jan 18, 2010
Sounds like the transmission's computer is wacked or a shift solenoid has quit
Posted on Jul 03, 2009
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Posted on Jan 02, 2017
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