Question about Toyota Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: Landcruiser 05 1HZ, Glow Plug
Hello kbmind, A number of different glow plug systems were used on the Landcruiser, depending where it was made and what country it was shipped to. However, they all serve the same purpose on a diesel injection. To preheat the combustion chambers. If your light is on when you deaccelerate the control module thinks the cylinder is cooling down & fires up the glow plug. This usually indicates the glow plug relay is weak and/or the glow plugs themself are worn.
Depending on your mileage, i would say it's the relay. The glow plugs can be tested with an ohm meter to determine if they need to be replaced. I hope this helps.
Posted on Sep 17, 2011
Testimonial: "Thank for the feedback, I will now look at the relay"
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