Vehicle Questions and Answers
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The oil line in the 2005 Toyota Highlander with VVT-I technology is prone to rupturing, causing a significant oil leak that can cover the ground, engine, and undercarriage. If the line bursts while driving, warning lights for low engine oil and oil pressure will come on. Continuing to drive after these warnings can lead to engine failure due to lack of oil. While Toyota has released a revised part to address the issue, there have been reports of the same problem occurring with the new part. To resolve the issue, the faulty line must be replaced, and the engine compartment and undercarriage need to be thoroughly cleaned.
The oil leak from the drain plug in your 2005 Toyota Highlander could be caused by a faulty seal. Fortunately, replacing the plug is a straightforward task and should only require around $40 to $50 for the necessary parts.