Why does a short cycle boiler fire up?
The internal thermostat of a short cycling boiler will detect that the water in the heat exchanger is cooling and, although the temperature in your home has not dropped, fires up the boiler to reheat the water.
What to do if your engine cranks but won’t start?
If so then that is where your problem is. 2004 ford e450 v10 class c motorhome…. cranks but won’t start…we have 1. Changed the crankshaft sensor 2. changed the PCM 3. Camshaft sensor 4. Replaced the fuel Pump 5. Replaced the computer (again) 6. changed the ignition switch 6. checked the Mass air flow sensor.
Which is the most common crank position sensor?
If you have the 3800 V6, then the crank position sensor behind the crankshaft pulley is most common. If you have the 3400 V6, most common is the ignition module. I have a 98′ Buick Lesabre. It cranks but wont.
Why does my ECU not fire during crank?
ECU doesnt seem to like some inputs that are way out of what it thinks are normal. Injectors will fire during crank and 1-2 secs later will stop after most of these situations, excluding a security problem, they wont fire at all, but may show pulse on the scanner.
What’s the difference between no start and no crank?
It’s important to know that a no crank and a no start condition are not the same thing since this article only concentrates on testing a no start condition. In layman’s terms, a No Start Condition means that your vehicle’s starter motor is cranking the engine but the engine is not starting.
Why does my boat Crank over but won’t fire?
Came home, cleaned the boat, went to flush the outboard….it won’t start. Cranks over but won’t fire. When I wash the boat and flush the outboad, I park the car/boat on a slope so the water can run off the deck and out the scuppers.
Why do my injectors stop firing during crank?
Injectors will fire during crank and 1-2 secs later will stop after most of these situations, excluding a security problem, they wont fire at all, but may show pulse on the scanner. If you have a fueling tune problem or other, then your injectors will still show to be pulsing… so post a log.