Tick. Tick. Tick. That's the sound our Ford 4.0-liter, over-head valve (OHV) engine was making in our 1991 Ford Explorer after 250,000 miles. The Ford 4.0L V-6 engines, built in Germany, are found in ...

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This post may contain links from our sponsors and affiliates, and Flywheel Publishing may receive compensation for actions taken through them. First released in 1991, the Ford Explorer is one of the ...