Question about 2002 Toyota RAV4

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2002 rav4, replaced ecu, worked for a day and then refused to go into gear.

Transmission started to make slight grinding noise when cold. Once warmed up the noise would stop. After a couple of days took it to a repair shop, they test drove it and could find no issues (it was warmed up). Next day it through a code 770. Dealer said it would need a new ECU and possibly a new transmission. Had the ECU rebuilt (circuit board medics), everything seemed to return to normal until two days later when it would not go into gear. Called CBM, they sent out a replacement ECU, still won't go into gear. Any ideas other than putting in a new transmission? Book is only around 6k and we would be putting in over half.

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  • Toyota Master
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Transmissions can be rebuilt. No need for a new one.

Posted on Nov 21, 2014

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code 25 air fuel ratio lean condition indicated.POSSIBLE CAUSES- AIR LEAKS IN THE INTAKE MANIFOLD -EXHAUST MANIFOLD -EXHAUST PIPES- FUEL CONTROL SENSORS IS OUT OF CALIBRATION LIKE THE-ECT IAT MAF -LOW FUEL PRESSURE LIKE- FUEL FILTER CLOGGED PRESSURE REGULATOR FAILURE- ONE OR MORE FUEL INJECTORS RESTRICTED -HO2S ELEMENT IS CONTAMINATED DETERIORATED OR HAS FAILED -VACUUM HOSE IS DISCONNECTED BROKEN LEAKING OR LOOSE.

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well I have the same problem as you... so did you solve the problem?? or did you change your transmission? Im plannig to flush and filter tomorrow with a injector claning too,, so please let me know

Posted on Mar 08, 2010

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It could be another fuse that is causing the problem. Check all your fuses and make sure that they are all in good condition. Fuses are cheap, so you could replace most of them for under 10 bucks I'm sure.

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Posted on Sep 02, 2010

jgwhomeequip
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Yes they should have known about your transmission. Are they liable? That is a tough question because there is no saying that you did not have a underlying problem that was not found. To prove this you would have to take it to a shop and have them take the transmission apart, then see what exactly went wrong and go from there.

Posted on Nov 10, 2010

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