F-150 radiators
Last trip, I noticed my 2012 F150 3.5 ecoboost started to heat up about 5 minutes into a hard climb. Slowed to 60mph and it went back to normal. So I'm looking at having the radiator hot tanked and ...
Forum Discussion
Well there is a little more to it than just than.
High load at low rpm increases boost which increases the amount of fuel that needs to be added to keep a gasoline around the right air/fuel ratio. More fuel and air causes increased heat, and since the engine is turning at low rpms, it is not pumping out this heat out fast enough.
Dropping down a gear will increase rpms which will help the engine get rid of this heat faster. It will also help the engine rely a little more on gearing for its torque rather than boost.
So just because the powerful 3.5L Ecoboost can run in higher gears at lower rpms(which the transmission tuning forces it to), does mean it should in every instance when towing. If temps start to get a little high on a climb and you notice you are below 3,000 rpm, then drop it down a gear or two increase the rpms.
N/A engines don't have this problem because they cannot pump more air into the engine than what the atmospheric pressure and their displacement allows at low rpms which is also the reason why they have less horsepower/torque at lower rpms than a comparable turbocharged engine.
High load at low rpm increases boost which increases the amount of fuel that needs to be added to keep a gasoline around the right air/fuel ratio. More fuel and air causes increased heat, and since the engine is turning at low rpms, it is not pumping out this heat out fast enough.
Dropping down a gear will increase rpms which will help the engine get rid of this heat faster. It will also help the engine rely a little more on gearing for its torque rather than boost.
So just because the powerful 3.5L Ecoboost can run in higher gears at lower rpms(which the transmission tuning forces it to), does mean it should in every instance when towing. If temps start to get a little high on a climb and you notice you are below 3,000 rpm, then drop it down a gear or two increase the rpms.
N/A engines don't have this problem because they cannot pump more air into the engine than what the atmospheric pressure and their displacement allows at low rpms which is also the reason why they have less horsepower/torque at lower rpms than a comparable turbocharged engine.
