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max_knight1
Fortuner intake manifold flap issue
4 comment(s)
max_knight1 (Author)
Yes, the engine light is on. I haven't spotted any obvious leaks myself. Is there a reliable way to confirm the intake manifold flap switch is the problem before replacing it?
harald_weber6
Confirming it without proper diagnostic tools can be tricky. Given the symptoms and the engine light, the intake manifold flap issue seems highly probable. However, misdiagnosis is always a risk. Wouldn't you be better off having a workshop run a proper diagnostic to pinpoint the problem before throwing parts at it?
max_knight1 (Author)
Thanks for the advice. I appreciate the caution. It turned out to be exactly as we suspected - the intake manifold flap control. The total bill was 465€, including the part and labor.
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harald_weber6
That sounds concerning. Has the engine light come on? A faulty manifold flap could certainly cause those symptoms, especially the reduced power and hissing. Have you checked for any obvious air intake leaks?