Thursday, October 6, 2011

I have a 92 astro van 4.3 v6 and gas just drips out of the fuel injectors wat cudd b wrong?

It wont start just turns over. before when it ran it started to hesitate when u accelerate from a stop, and then gradually got worse. One day it would start to jerk and shake really really bad when u wudd accelerate and it wuddnt go over about 55-60 mph and in order for it to even accelerate u wudd have to pump the gas alot. changed spark plugs and map sensor and fuel filter but didnt fix the problem. Fuel pump does make the noise when u turn the key on, and when the filter is removed gas does squirt out for maybe 2 or 3 seconds. It has been sitting for a while not knowing what to replace. I dont wanna replace a whole bunch of expensive parts with no results.
I have a 92 astro van 4.3 v6 and gas just drips out of the fuel injectors wat cudd b wrong?
buy a noid light...they are about 10 or 12 bucks and check the pulse to your injectors if the signal is good on all cylinder...then you probably have a bad injector...the gas coming out of an injector should be a very fine mist....it will be cheaper than buying new injectors to take it to a shop and have the injectors cleaned...that costs about 50 -60 bucks.take each injector out one by one...pull one out and then turn the engine over to see if fuel sprays out...that will help you to find the bad injector...test them all....you also mentioned that you have taken the fuel filter off and turned the key on and fuel came out for a few seconds....when you take the fuel line loose and turn the key on the fuel pump should keep running until you shut off the key...the reason t stops or you hear it stop when everything is attached is because it builds the necessary pressure and stops running....but with it unhooked from the filter it would run continuosly trying to build pressure....if it stops after a few seconds then you have a bad pump....the hesitation you described sounds like you need to take off your egr valve and clean it really well with some brake parts cleaner...clean the valve itself and the port where it attaches...even b 4 you buy a pump i would suggest a fuel pump relay....they are cheap......you should also remove the distributor cap and look inside of it to see if there is any corrosion or buildup on the contact points.....a cap and rotor are only like 13 bucks max...that could also cause you hesitation....even with a bad injector it should still start....i had a guy bring one into my shop 4.3 i mean with the same problems and turned out the shaft on his distributor had cracked...good luck and any other questions let us know
I have a 92 astro van 4.3 v6 and gas just drips out of the fuel injectors wat cudd b wrong?
Sounds like clot injectors I would change the injectors, and check the fuel rail.
just go the extra mile and fix it for good, just get a new throttle body.
If you have gas leaking from injectors the injector is leaking and will have to be replaced.
Check the fuel injector o-rings. Have had this happen many times. There is a clamp on the top of the throttle body that holds the injectors in. remove it and pull out the injectors. should be 2 o-rings. one at the top and another at the bottom. If these are leaking the computer can't shut the fuel down and it will also set a false MAP sensor code.