I dont know which one should i checked, i replace the fuel filter and fuel pump but still not getting any gas from the carborator, the will start when u put gas directly to the carborator and will die as soon as it run out of gas, any idea? im sure sum thing crog on the line but not sure which on..
The car is low on compression so you could have a hole in a piston or a bad valve the pistons in this engine are its weakest point especially if you try to crank up the boost to far above stock they can only handle about 14psi with ocasional trips above that.
also these cars do not have a carb they are throttle bodie injected so if you check your compression and is ok then try injectors
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If the pump continued to run after shutting off the car you fuel pump relay was probably staying latched. I would replace the relay as well based on your info. Along with the pump the fuel filter should be replaced too and fuel pressure should be checked. Make sure your ground is good also.
It sounds like it could be you TPS (throttle position sensor)
If it's not getting the right signal when you step on the gas pedal, it won't let the computer know what position it's in, when the throttle is open it will let in to much air, but not give it enough fuel for that amout of air.....
if you are not recieving any fuel from the gas tank to the engine, i would check the fuel pump relay located in a black box under your hood located on the drivers side, if your fuel pump relay checks out ok, then i would check the fuel filter, located under car, near the gas tank, question is has the fuel filter been changed, in a while , or how long has it been since it has been changed, if filter is changed, and still no fuel to engine, then i would suspect the fuel pump, and it is located inside of your fuel tank under the car, hope that this information has helped you.
You have fuel flow but the question now is are the injectors pulsing. Given the year of the truck my gut says your ECU, Engine Control Unit, has failed. Mitsubishi had issues with the capacitors in their early 90's cars, trucks SUVs. I have been thru this with two monteros and one 3000GT, very common. To check your injectors rent a set of NOID lites from Autozone our such. Remove an injector plug and itstall a noid light. Turn the engine over, if no flash, no pulse. Remove the ECU and carefully open it up. Look for the capacitors, there should be 3, look under the capacitors on the board; if there is a grease like substance, often time it has a green hew to it, then the capacitor(s) have failed. It may be possible to replace the capacitors or simply purchase a rebuilt ECU. Be ceratin the MD number matches on the new unit.
Please let me know your results and if this had assisted you.
Hello there: If you have tried priming the fuel pump by turning on the key and listening for the fuel pump to be running if it is it may just need to be primed with a hand priming pump untill you get fuel but if you still dont get any fuel i would check out the fuel filter to see if it is clogged and needs to be replaced to locate the fuel pump and filter go under the drivers side and look at the frame of the vehical not quite half way back and you will see the fuel filter and just in front of this about 10 inches towards the engine will be the fuel pump ok> best regards michael
tienes que checar la bomba de combustible remueve las lines de entrada y salida de gasolina y da marcha si avienta gasolina si sirve si no tienes que cambiar la bomba de combustible se encuentra adentro del tanque
Check the fuel pressure at the shredder valve. You should have 60psi to 65psi with the fuel pump primed and engine not running. Once the engine has been started, there should be a 5psi drop. Make sure the fuel filter has been replaced and that the fuel pump is making at least 60psi. Anything less or more then 65psi will not activate the fuel injectors, the other thing to is that the spider injection system on the vortec are know to go bad and you may have to replace the system. Good luck and keep me posted, be glad to help you get your S-10 running 100% again.
a cut off switch is almost never the problem just hummor me for a second and please check that the fuel filter is installed correctly not backwards then check the fuel pump fuse and relay if all good check for power at the pump and a good ground if all this is good then the pump need replacement