Question about Toyota RAV4

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I took my toyota picnic to the mechanic because the transmission was slamming, afterwhich a new transmission was bought. However that did not fix the cituation, the same thing is happenning. Now, I am told it is the computer in the car (serial# 89611-44250). Do you know if these computers were recalled by toyota, and do you think it is the computer? I also understand the RAV4 have the same issue. and they use the same computer.

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Posted on Jan 02, 2017

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SOURCE: 2003 RAV4 Engine Replaced, Electrical Issues

first it is plausible that it could be a ecm problem however if it were replacing the engine was a waste of money and the problem never got solved, and i highly doubt it's a ecm problem to begin with. with the ecm it does learn as you are driving but the only way it does that is by checking the sensors and compenstating the performance from the results. if you were leaking fluid and it was red it was from your transmission or your transaxle if it's 4 wheel drive. If your yellow light comes on most people assume that it has something to do with the computer, but often times that in newer vehicles they don't always have seperate gauges for the oil,electrical,etc. and if you have a low level in fluids it will cause the check engine light to come on. I have over 25 years of experience in engine building i have replaced alot of engines in different vehicles over the years and i have yet to install one in a RAV4, however basic engine principles still apply. all engines run the same and transmissions are the same. the trick is to use common sense and take your time in diagnosing problems. Now you stated you felt a loss of power brfore you had to tow it. I'm going to ask you a few basic questions and I would like you to reply back with the answers. this will help me pinpoint the problem instead of guessing like most under qualified mechanics that just want your money

Posted on Sep 04, 2008

  • 1861 Answers

SOURCE: Toyota Rav4 problem

Automatic transmiision? You may have a seized overdrive solenoid in the valve body.

Posted on Sep 12, 2008

  • 3 Answers

SOURCE: 2005 Toyota Transmission downshifts rough

Sounds like you need the updated engine computer for harsh shifting. Look up under the glove box at the computer. Number should be 89661-02K21 if not, you need the update. It is an 8/80 warranty item.

Posted on Dec 31, 2008

  • 1077 Answers

SOURCE: 96' toyota corolla Exhaust Manifold Keeps Cracking

Sounds weird that this problem keep occurring over and over. Does it crack in the same spot every time?

Only two things I can think of that would cause this problem.
1. Extensive over heating, I've seen a exhaust manifold get glowing red hot because of a bad oxygen sensor.

2. Excessive Vibration. The whole exhaust line to the back of the car is moving around too much or too stiff. The exhaust line needs to move around enough to take the movement/vibration of the engine. I would check out for bad motor mounts and worn out exhaust pipe mounts.

Posted on May 17, 2009

  • 2 Answers

SOURCE: my vw beetle stalls out. the mechanic first told

If it was the mass air flow sensor, you will have a check engine light. The small rubber hoses connected to/from the mass air flow connector might have come loose or have a crack, which will cause compression to be too low. Check there before replacing the maf sensor.

Posted on Aug 27, 2009

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