Overdrive Not working Right When Warm
06-04-2013, 10:13 PM
#17
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Is it your TCC locking and unlocking (about a 300 RPM difference), or actual Overdrive (4th gear) shifting in and out?
The TV cable- how did you adjust it? If it's 4th gear that isn't holding, it might be helpful to deliberately misadjust it just a bit on the short side if your trans is tired and line pressure is on the low side. Hold the adjuster button in and push the cable back into the housing about 1/8" to 1/4", see if that fixes things.
The TV cable- how did you adjust it? If it's 4th gear that isn't holding, it might be helpful to deliberately misadjust it just a bit on the short side if your trans is tired and line pressure is on the low side. Hold the adjuster button in and push the cable back into the housing about 1/8" to 1/4", see if that fixes things.
Last edited by Radi; 06-04-2013 at 10:17 PM.
06-04-2013, 10:15 PM
#18
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See this?
06-04-2013, 11:28 PM
#19
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Is it your TCC locking and unlocking (about a 300 RPM difference), or actual Overdrive (4th gear) shifting in and out?
The TV cable- how did you adjust it? If it's 4th gear that isn't holding, it might be helpful to deliberately misadjust it just a bit on the short side if your trans is tired and line pressure is on the low side. Hold the adjuster button in and push the cable back into the housing about 1/8" to 1/4", see if that fixes things.
The TV cable- how did you adjust it? If it's 4th gear that isn't holding, it might be helpful to deliberately misadjust it just a bit on the short side if your trans is tired and line pressure is on the low side. Hold the adjuster button in and push the cable back into the housing about 1/8" to 1/4", see if that fixes things.
06-04-2013, 11:44 PM
#22
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What do you mean by 'barely' being in 4th? I suspect it's the TCC lockup you are having an issue with where the torque converter partially locks? It's solenoid operated and they do get sensitive to heat. Might check the solenoid resistance when it's good and warm, should be 11-15 ohms or so. And double-check the TPS when it's good and hot under the hood, it has direct effect on the TCC locking and unlocking. Perhaps just replace it- they're cheap.
06-05-2013, 01:20 AM
#23
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Year: 1989
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What do you mean by 'barely' being in 4th? I suspect it's the TCC lockup you are having an issue with where the torque converter partially locks? It's solenoid operated and they do get sensitive to heat. Might check the solenoid resistance when it's good and warm, should be 11-15 ohms or so. And double-check the TPS when it's good and hot under the hood, it has direct effect on the TCC locking and unlocking. Perhaps just replace it- they're cheap.
06-05-2013, 06:22 AM
#24
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