Question about 1995-1997 Chevy 1500 Truck Ignition Starter Alarm Switch

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1995 Chevy K1500 Z71,Engine L05 5.7L,starts cold fine,runs great,but after it is warmed up and lets say 30 min drive shut truck off then sits for 20 to 45 mins it wont start,seems like it is flooding out,replaced all injectors,idle control valve works,checked timing,only way to get truck to start is the old school way of starting flooded engine,by holding peddle to the floor then turning over till she fires.then runs fine again.I replaced all sensors and has no O2 sensor,replaced ignition control thing under Cap also.checked temp sensor on side of head also reads .144 ohms at 195 degrees

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Check the ect switch by the thermostat outlet, it looks like a temp sw but it tells the ecm how much fuel to put into the engine at start up when hot and when cold. it may be reading the outside temp incorrectly. Hope this helps .

Posted on Dec 08, 2015

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I know it sounds simple minded but change your fuel pump relay on the firewall it is going out.(cost me $150 bucks for a $8 relay)

Posted on Dec 25, 2009

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