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Why would a 1998 Sienna's engine sometimes starts with low RPM and then die but sometimes start normally with the right RPM?
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Answered 2008-12-02 05:29:29
Hello, This may or may not help you. I just got my 1998 Sienna back from the dealer. I had a problem with the car idling and then just dying. Not all the time, very intermittent. The solution, which seems to have worked so far, is a 'idle air control valve'. The dealer stated it was very common for this part to get full of carbon and 'stick'. I asked for the part back and it was solid black on the inside. The bad news is that this part, although small, is approx. $225 and about $175 labor (approx. 2 hours).
When mine sticks I take the air intake tube off and spray carburetor cleaner in. It stops the problem for 6 mo or so. Make sure the cleaner is compatible with Oxygen sensors.
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