Ford 460 motorhome running hot
Hello again everyone! Just wanted to check in after all the recent repairs with a new and exciting issue! Haha well kind of new. So the 460 engine in my 1988 ford E350 motorhome is running pretty...
Forum Discussion
I still need to check for the muffler possibility, but I do have my own temp probe and gauge installed so I know the temp is verified. Even when running for hours it wont go over 220, but ideally it shouldnt be much over 200. I can keep it close to 200 if I am not doing a lot of stop and go and hills and working the engine more.
I really dont have the money to start installing additional fans and such nor should I really need to. Simply, the engine shouldn't be running this hot, and the lack of acceleration and power under load leads me to believe there is a seperate issue causing the engine to run inefficiently.
I also think there is a very small leak in the exhaust manifold on the passenger side, and will be getting thermo-steel for it but I doubt it would be causing this. It is a pretty small leak, maybe pencil lead size near one of the mounts.
The 02 sensor was definitely bad as it idles and runs better since replacing. The fuel pressure sensor fixed the not starting when hot issue. Oil pressure is right where it needs to be after pump and crank replacement.
I'm wondering if a lean fuel condition from a faulty pump could be causing the engine to run hot and lack power.
The radiator drains very well as I saw when removal and fluid flush/change. Though I didnt blast it out. The thermostat seems to kick in around 180 I think if I recall correctly and will maintain at or below 220 at the moment even driving in 90+ degree heat for over an hour.
Definitely minimal driving of the motorhome, but to be clear on my situation this is my home and only vehicle aside from peddle bike, and it has to be moved on occasion. Just keeping it to short jumps at the moment to minimize heat build-up.
I really dont have the money to start installing additional fans and such nor should I really need to. Simply, the engine shouldn't be running this hot, and the lack of acceleration and power under load leads me to believe there is a seperate issue causing the engine to run inefficiently.
I also think there is a very small leak in the exhaust manifold on the passenger side, and will be getting thermo-steel for it but I doubt it would be causing this. It is a pretty small leak, maybe pencil lead size near one of the mounts.
The 02 sensor was definitely bad as it idles and runs better since replacing. The fuel pressure sensor fixed the not starting when hot issue. Oil pressure is right where it needs to be after pump and crank replacement.
I'm wondering if a lean fuel condition from a faulty pump could be causing the engine to run hot and lack power.
The radiator drains very well as I saw when removal and fluid flush/change. Though I didnt blast it out. The thermostat seems to kick in around 180 I think if I recall correctly and will maintain at or below 220 at the moment even driving in 90+ degree heat for over an hour.
Definitely minimal driving of the motorhome, but to be clear on my situation this is my home and only vehicle aside from peddle bike, and it has to be moved on occasion. Just keeping it to short jumps at the moment to minimize heat build-up.
