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  1. C

    Help with popping noise

    Thanks for the replies. I had two estimates for repairing the exhaust manifold. Both were just over $1000. I went ahead and took it off and replaced the gaskets and bolts myself. All bolts came out easily with stud extractor. However, I also had the spark plug problem. This one was the #3...
  2. C

    Help with popping noise

    I didn't see any cracks (could be a hairline) but it definitely has two bolts in the back that were missing, looks like I will be taking it to the muffler shop this week. Thanks!
  3. C

    Help with popping noise

    Last week my 2000 Expedition 5.4Liter was at a stop light and began running a little rough. A popping noise started not long afterwords, I was only a mile from home so I pulled in the driveway and openeded the hood. I checked for any plugs loose or ejected but didn't find any. I recently had the...
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