Question about Toyota Land Cruiser

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1992 TLC. I replaced a vacuum line with a large hole in it, then the truck started shifting at much higher rpms (from about 2000 rpm to about 3500 rpm). I replaced the rest of the lines, and now it shifts at about 4000 rpm. What do I look at next?

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  • bigsmellyogr May 20, 2009

    I'll look at the IAC valve, but it is not on the diagram for the vacuum lines I replaced. The problem started when I replaced a line to the EGR valve. Can this cause shifting problems?

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Disconnect and plug the EGR vacuum line and see if problem clears, if it does u have a EGR flow control problem, this can cause shifting problems, in order to diagnose the EGR u will need to have a full engine running test done, the dealer should do this.

Posted on May 20, 2009

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Get the ICA valve checked, I had the same issue replaced the ICA valve, that fixed the issue.

Thanks
Kevin

Posted on May 19, 2009

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