Hey guys, my Ford F-250 1983 7,4L starts normally when the engine is cold, when it heats up and i turn the engine of, a few minutes after the starter makes noices like low battery but the batterys are full... it could be a wire which doesnt make good contact to the minus?? Thanks a lot

LET YOUR CAR WARM UP FIRST!! or you risk the chance of over heating and casuing engine damage. start your car let it warm up for 5 to ten minutes and then try the heat. also when you start you should NEVER have heat on right away. the heat that you feel comes from the engine. and if the engine is cold and you are trying to heat it up it will put stress on the engine and over heat. ALL cars have to wait for their heat. that's why you see peoples car running in the morning with no one in it. so when they do get in it they have heat. heat will not work until the engine is warm.

IF you are saying that the starter motor is sluggish to turn over as if the batter is flat or low (6cylinder) then the problem is overheating of the starter. There is a shield that is available from ford to keep air flow around the starter. I found the answer to be a high performance starter (used for worked motors) as it is not affected by the heat.

Try cleaning battery cables and focus on the bottom ends. They're exposed to grease & grime and when hot they expand. I'd start there.

If it is the starter that will not turn the engine over,then the alternator is most likely not charging the battery,therefore letting it sit a while,lets the battery build back up.

Yes the starter is going outreplace asap. it has a short that is only there when it is hot. things expands in the starter

The starter operates great when cold. When the engine gets to its normal operrating tempreture the starter gets hot. An old starter will have an expanded armature from this causing the starter to drag or just freeze up hot . When its cool it will start again. This will eventuly get hot and the armature will go bad forever on you so get it changed soon

CLOGGED FUEL INJECTORS IS CAUSING ENGINE TO FLOOD.THE INJECTORS IS LEAKING WITH ENGINE OFF.TRY CLEANING FUEL INJECTORS FILL GAS TANK UP.PUT A BOTTLE OF INJECTOR CLEANER IN FUEL TANK.DRIVE AROUND SO THE INJECTOR WILL CLEAN OUT THE INJECTORS.CHANGE AIR FILTER OR FUEL FILTER.THEY ARE DUE AT 30000 MILES .ALSO SCAN IT TO CHECK ECT AND IAT SENSORS THEY CAUSE STARTING PROBLEMS.

sounds more like a vacuum problem -temp activated vacuum port -distributor advance or loose vacuum line to or from evaporative control canister if engine bay equipped
does it have a throttle position sensor starting to fail ?
I'm not a nissan guy --more a honda,toyota,ford and GM guy --or classic internationals
other possibles try autozone.com --after waiting for a better answer here
hope this helps
HAWK

It is more than likely the starter. The brushes are becoming worn and when you try starting it there is an arch between the brushes and the armature when after a few time it will make contact on then start.

It sounds as if the crank position sensor is bad.When the engine heats up,it cases the sensor not to work.After the sensor cools it will work again.

Ken