Question for you master mechanics
My son bought himself a 2005 (more or less) Ford Expedition that been sitting on blocks and I thought it was a stupid purchase but kept my mouth shut, thinking that making mistakes was the one sure wa...
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It could very well be a loose rod if it is a loud hammering sound, or as someone said could have spit a sparkplug. Have a local mechanic listen to it and they should be able to tell you. Otherwise it's just a guess.
