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pilotanpia's avatar
pilotanpia
Explorer
Oct 16, 2021

F53 460 Engine runs very poorly when heat soaked

My 1995 F53, 460cid runs poorly after being heat soaked. When engine is cold it runs like gang busters. After a fuel stop and the engine has soaked up the heat due to no airflow through the engine co...
pilotanpia's avatar
pilotanpia
Explorer
Oct 17, 2021
enblethen wrote:
Sounds like it could be bad catalytic converter


My F53 Motorhome is 17,000 lbs GVWR. So, no catalytic converter installed from factory. I even confirmed this myself.

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