Transmission cannot go into gear
#1
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I have a 2003 Lexus LS430. In the morning when i turn my car on i put my car into reverse. the gear is very difficult to engage until i rev it up to about 4000 rpms.
When i try to put it in drive it does the same, I need to give it a good rev to about 4000 rpms to get the gear engages and i can take off.
It only does that after longer time (8+ hours) of being parked. If i leave it for 4-5 hours it will go in to gear like if nothing was wrong.
Thank you very much.
When i try to put it in drive it does the same, I need to give it a good rev to about 4000 rpms to get the gear engages and i can take off.
It only does that after longer time (8+ hours) of being parked. If i leave it for 4-5 hours it will go in to gear like if nothing was wrong.
Thank you very much.
#2
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That is an odd problem. Sounds like a lack of pressure or somehow heat related. Has the transmission been serviced? Have you checked the fluid level? When you check, it is best to verify it after the transmission is hot by driving on the highway for 25 min, pull over on flat ground, and then check the lever via the dip stick.
Last edited by Lavrishevo; 07-09-15 at 03:14 AM.
#3
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That is an odd problem. Sounds like a lack of pressure or somehow heat related. Has the transmission been serviced? Have you checked the fluid level? When you check, it is best to verify it after the transmission is hit by driving on the highway for 25 min, pull over on flat ground, and then check the lever via the dip stick.
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#6
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Did you drain and refill or drop the pan? If you dropped the pan, did you use a pre-formed gasket or the sealer? If you used the sealer then this is probably the problem. Used to much and now it's in the fluid. Robots apply this in the factory in perfect amounts. Impossible to do by hand like the Lexus factory.
Aisin never recommends dropping the pan unless for a repair. Never a need to replace the filter screen. If this is the problem, then I would definitely recommend dropping the pan, flushing the system to get the sealant out, and obviously replacing the gasket with a pre-formed one and the sooner the better.
Aisin never recommends dropping the pan unless for a repair. Never a need to replace the filter screen. If this is the problem, then I would definitely recommend dropping the pan, flushing the system to get the sealant out, and obviously replacing the gasket with a pre-formed one and the sooner the better.
Last edited by Lavrishevo; 07-09-15 at 05:21 AM.
#7
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Did the problem start after you did the drain and fill? Transmission fluid is draining out of the torque converter as it sits for 8+ hours. Could be a pressure regulator valve.
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#8
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Check your battery. Electronic transmission won't engage without enough juice. It seems that the problem occurs after sitting which could correspond with battery drain.
~Miser
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#9
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Did you drain and refill or drop the pan? If you dropped the pan, did you use a pre-formed gasket or the sealer? If you used the sealer then this is probably the problem. Used to much and now it's in the fluid. Robots apply this in the factory in perfect amounts. Impossible to do by hand like the Lexus factory.
Aisin never recommends dropping the pan unless for a repair. Never a need to replace the filter screen. If this is the problem, then I would definitely recommend dropping the pan, flushing the system to get the sealant out, and obviously replacing the gasket with a pre-formed one and the sooner the better.
Aisin never recommends dropping the pan unless for a repair. Never a need to replace the filter screen. If this is the problem, then I would definitely recommend dropping the pan, flushing the system to get the sealant out, and obviously replacing the gasket with a pre-formed one and the sooner the better.
#10
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#11
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But I have a multimeter so I can measure voltage. Should I check both after drive at night and in the morning as a comparison?
#12
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As far as the battery goes, I don't think this has anything to do with your problem but check anyway. How many volts DC are you getting at your battery with the engine running? Night or day or after a drive does not matter with the battery / alternator.
Last edited by Lavrishevo; 07-13-15 at 01:06 AM.
#15
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