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Re: starts then runs a few seconds then shutts off
Is the ck engine lite on? one thing i remember about these early xterra's was that they had a problem with the fuel sending unit on top of tank. they were cracking and causing contact problems with fuel pump. the connector was exposed to the elements and corroding, turning wires green. hope this helps.
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It may take 3-4 times cranking for a few seconds, with a 5 second pause
between to get fuel up to the engine. Also may have sucked up some
dirt/debris into the fuel pump after running it dry. May want to change fuel
filter. you can try to have someone bang on the bottom of the tank
while someone else cranks engine. Sometimes this will free up a stuck
fuel pump. good-day!!
This issue is caused by a fault in the evap. emmision system. In the engine compartment there is a purge valve that takes in engine vaccum and fuel vapours. The valve is malfunctioning. It is located on the right side of the intake planum.
it looks like your engine is having an over rich fuel mixture maybe, thatswhy when you press the pedal to the floor it starts becouse you allow lots of air to help clean the mixture while cranking, also you should have black smoke in the tailpipe until it cleans up and runs fine, i think youre having a leak in one our more injectors you should check them first for proper seal under pressure these is done in an injector test machine, second it may be a defective map sensor these trucks some times have a bad map and dont give a MIL (malfunction indacator lamp) and last but more rare to be is a blocked fuel pressure regulator chek fuel pressure it should be between 38 and 45 psi and it shoul hold these pressure when you turn off the engine if pressure drops fast its injector seal problems or fuel pump check
there is an idle valve on the throttle body. it opens to keep a cold engine running, then closes when the engine warms up. if it sticks open, car will run good for a few seconds then stall the warmer it gets