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2012 4.6 dies after starting, runs great after warmed up--115,00 miles on it...

Thread author mtrot
Start date Oct 15, 2018

mtrot

Registered Member

Oct 15, 2018

Lately, it seems that the car will start, but begin to idle roughly and sometimes die. If I crank it again, it starts right up. Once it's up and running, it runs great. I recently replaced the spark plugs, but it was having this problem before that. Any ideas? I will check the air filter, but I don't think it is particularly dirty.

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