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when it is running on gas , the petrol components dry out and rubber bits crack and jam
it is also possible that the change over solenoid is not stopping the gas and opening for petrol either starving for petrol or running both fuels and flooding out
Take it to an accredited service center that works on both gas and petrol and have the problem properly diagnosed and a quote
This is entirely normal, a fuel pump will run only for a few seconds so that it is primed. If it ran continuously without the engine running pressure would build up inside it and would probably cause damage. After if has run for a few seconds after the jey is first turned it will , basically, switch off and wait for a signal from the sensor, communicating that the engine is cranking at whick point it resumes pumping in order for the engine to start.
Remember, the spark and fuel must coincide in the combustion chamber in order for there to be ignition, if you have no spark that may be the issue.
You can check whether fuel is getting to the plugs by cranking over repeatedly and quigkly removing a plug. If the pump is supplying fuel the end of the plug may have some fuel at the tip or may smell of petrol/gas.
You have to find out why fuel and spark are not coinciding essentially, in the combustion chamber.
Make sure that the idle motor is working.When you start it should run about 1200 rpm for a few seconds then go down to 600 rpm If not it may need cleaned or replaced.
check trasmisson fluild level if it is full check to see if it ssmells burnt if it smells like onions and is brrown then the filter may be plugged and the fluid is burned so you will have to replace it. however most likely it needs to be rebuilt snd tork converter replaced. hope this helps.
if you can put fuel into the top and get it started the fuel pump is not working. Try checking the fuses and relays for the fuel system but I am pretty sure it is the pump itself.
Try pounding on the gas tank with a rubber mallet or similar tool. (careful not to dent the tank) Try starting it. If it runs, replace the fuel pump (it's nfg). I've diagnosed numerous fuel pumps this way. Remember the pump needs to be replaced, if you drive it, you don't know when it'll fail for good. Hope this helps. Please post the results.
Sounds like you have no Torque converter lock up function. The wiring connector for T/C lockup solenoid must have been disturbed or the solenoid is bad. No lock up will make a 200 RPM difference in high gear
I think this is gas line freeze up or fuel filter pluggage but not sure
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