Are you having problems with your 1994 Toyota HiLux? Let our team of motoring experts keep you up to date with all of the latest 1994 Toyota HiLux issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 1994 Toyota HiLux in one spot to help you decide if it's a smart buy.
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It could be a cracked manifold or a leaking gasket, but either way I would expect that you could hear it. I would expect it to be worse when the engine is hot, so take it for a drive and get it nice and hot and then check it again.