Question about 2006 Ford Expedition
Popping sound goes away if shifted into neutral
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Posted on Jan 02, 2017
if it has been awhile since the belt was changed it may be a good idea to change it and get a timing light and check the timing also make sure the beads in the catalytic converter is not releasing and starting to plug up the exhaust system
Posted on Jan 18, 2009
Possibly you have a leaky or cracked exhaust manifold. After the engine heats the metal expands and creates a larger gap. As the engine speeds up the engine noise overcomes the exhaust leak noise and you don't really notice it much until the vehicle gets in to a hard pull or comes to and idle.
Posted on Mar 07, 2009
SOURCE: Skipping and Popping. 4.6 v8
It sounds like you have a miss fire event going on. look for spark jumping from the plug wires to the engine or any metal object. Best way to see is start you truck at night open the hood you should be able to see the spark jumping
Posted on Mar 29, 2009
SOURCE: i have a 1991 ford
Are you sure that the change in elevation is changing the problem? Or is it just quit after the engine warms up? Does it do it when you get back home? The reason I am asking if the idle is normal after warming up and only high when it is cold, I would suggest the mass air flow sensor. But need to make sure that it is a elevation issue.
Posted on Oct 27, 2010
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