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Genchi Genbutsu
Genchi Genbutsu, Toyota Master Technician
Category: Toyota
Satisfied Customers: 3979
Experience:  Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine
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Toyota RAV4 4x4: Check engine light, VSC light and 4WD light

Customer Question

Check engine light, VSC light and 4WD light all came on at once.
Submitted: 2 years ago.
Category: Toyota
Expert:  Genchi Genbutsu replied 2 years ago.

Genchi Genbutsu :

Hi

Genchi Genbutsu :

Thank you for using Just Answer for your needs.

Genchi Genbutsu :

Did this just happen?

Genchi Genbutsu :

Are you with me?

Genchi Genbutsu :

Hello?

Customer :

It started about a week ago while I was out of town. My local mechanic told my son that he could still drive it and that it was ignition coils.

Genchi Genbutsu :

Does the Rav4 drive normally? or is there a drive ability concern?

Customer :

Seems to drive normally. May be a slight occaisional hesitation when stepping on the gas at low speeds. At higher speeds, there is no noticable problem.

Genchi Genbutsu :

Thanks. Do you remember what codes were stored that caused the check engine light to come on? You mechanic may have listed them on the repair order.

Customer :

My son didn't get the repair codes. The mechanic told him there were 12 codes but that replacing all of the coils would probably make them all go away.

Genchi Genbutsu :

This does sound plausible. When was your last tune up with plugs?

Customer :

At 50,000 miles. Currently at 86,000. on 2006 Rav4.

Genchi Genbutsu :

Ok, were OEM Toyota plugs used for this tune up? (Denso Brand)

Customer :

It was actually done at about 56,000 miles and was done at a Toyota dealer but I don't know the brand for certain.

Genchi Genbutsu :

If it was done at a Toyota Dealer then the correct ones were installed. At this point I would go ahead and get the Rav4 fixed as early as possible.

Customer :

We no longer use the Toyota dealer. He's too far away. Do we need to get all the coils replaced?

Genchi Genbutsu :

If that is what the codes indicated, then yes. It looks liek from what you've told me, the plugs are fine and not the cause of this. It may also be a good idea to have a fuel injection cleaning for the injectors if you haven't done this yet. Every 15-30,000 miles is normal for this service.

Customer :

I don't know if the injectors were done at the same time. Are they normally done at the standard 50,000 mile service?

Genchi Genbutsu :

Usually at 45,000 but they will at 50k if you missed it at 45k, Genchi

Customer :

OK. Any idea what replacing the coils should cost?

Genchi Genbutsu :

Do you have any more questions for me?

Customer :
Expert:  Genchi Genbutsu replied 2 years ago.
Our chat has ended, but you can still continue to ask me questions here until you are satisfied with your answer. Come back to this page to view our conversation and any other new information.

What happens now?

If you haven’t already done so, please rate your answer above. Or, you can reply to me using the box below.
Expert:  Genchi Genbutsu replied 2 years ago.
I did not see a reply.

Genchi

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