SOURCE: 2004 xterra temp rises when stopped, goes back down when moving
sounds to me like the thermostat may be stuck. i would check the coolant, fan, and belts.
SOURCE: 1993 suburban won't crank when hot
There are quite a few things to check, start with checking fuel and spark. One or the other isn't working at the time of NO START. Things to check: ECT sensor(engine coolant temp.), TP sensor(throttle positioning), fuel pump and relay (), spark-plugs, wires, cap&rotor, air&fuel filter, PCV, ignition control module (can be tested for free at AUTO-ZONE or most other part stores), IAC (idle control valve), no crank signal (defective ignition switch), or PROM. I think that with all the extra cranking something else is bad now. Check the battery, should have 12.5 volts (cold), the fuse, connections, and bench test the new starter, it might be defective. Hope this helps you, if you have any other questions, please ask away.
SOURCE: 87 'C' Class motorhome powered by a ford 460
I had same problem in varius trucks and motorhomes with the same engine size (460)and this is caused by excesive heat from the engine in all 460's,when hot if I stoped at a gas station to fill,once I tryed to start it again it felt like the battery was almost dead and bearly turned the engine over.what I did was that I added an after market engine oil cooler and that fixed the problem.
check electronic spark unit ie coil pack going open circuit when hot
will run but when turned off will stay open circuit untill cools down then closed circuit then will wprk fine
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