Gas in the throttle body - 1999 Chevrolet Venture

It sounds like your spider injection system has failed or the injector is plugged, and the gas is cycling back to the tank.

The only matter there should be in the throttle body is air. The throttle body in no way has anything other than "nothing" in it. The liquid you see could be the gasoline you threw into the throttle body.

Getting back to your problem. Do NOT have someone looking down the throttle body while you are trying to start the engine. That person may receive a haircut he will never forget! Get the battery charged. Try to start the engine because even though you think you put too much gas in the throttle body, it may start.

The tricky part. If the engine starts and runs for a few seconds, then you are having a problem with fuel delivery and that is the fuel pump most of the time but not always.. If it does not start at all, try one more time to pour gasoline into the throttle body, hold your foot about 1/2 way down on the pedal and then try again to start it. If it still doesn't start, it's time to check for spark.

first off.... does the engine over rev on its own? or only after you press the gas pedal?
does your vehicle have a throttle body that is electronic or cable actuated?..if electronic and revs on own could be one of two issues 1) throttle body itself 2)throttle pedal switch on gas pedal)
if cable and revs after pushing gas pedal ..either there is too much carbon built up on the throttle plate or the throttle cable has begun to fail.. remove the intake tube from the air cleaner to the throttle body and inspect

Do you baby your car ...if so usually the throttle body gets caked up with gunk i would recommend to take off the TB and clean it ...this should solve your problem ...

OK P1516 is usually have something to do with throttle body or gas pedal, My 1st choice would be the throttle body I would start by removing the air intake hose to gain access to the throttle body once that is out of your way look at the throttle plate with the key on the plate should be partly open if it's fully close or open also try to move the throttle plate DO NOT FORCE IT it should not move when the key is on if it does then you have to replace it, the next to do is to have someone step on the gas pedal while you look at the throttle plate, with the gas pedal to the floor the plate should be wide open . Now the second choice would be the gas pedal and that calls for some electrical back ground, So start with the throttle body., Good luck

I would suggest starting with the less expensive solutions first. If you pull the air intake hose off the throttle body and open the throttle with the engine off look down inside if it is black try spraying it out with throttle body cleaner make sure to spray it out good. Afterwards start it you may have to keep your foot on the gas for a few minutes to make sure it doesn't stall then take your foot off the gas pedal and see if it stays running if it does your throttle body just needed cleaned. Note do not use carb cleaner use throttle body cleaner only, carb cleaner can damage the sensor in your throttle body.

Hello. The Throttle Position Sensor (TPS) is on the outside of the throttle body assembly. It's beside the throttle plate inside the throttle body. Once you remove the air cleaner from the throttle body you will see what I am talking about. I hope this helps, please don't hesitate to ask any other questions about this.

DETACH CABLE FROM THROTTLE LINKAGE..MOVE CABLE IN AND OUT OF CABLE HOUSING..IF IT MOVES FREELY,YOUR PROBLEM IS MOST LIKELY IN THROTTLE BODY/PLATE..YOU CAN REMOVE THROTTLE BODY..FIRST REMOVE AIR CLEANER,UNPLUG TPS,IDLE MOTOR AND INTAKE TEMP SENSOR..USE BRAKE CLEANER OR THROTTLE BODY CLEANER AVAILABLE AUTO PARTS STORES..DO NOT LET AND CLEANER GET IN TPS..YOU CAN USE A PLASTIC OR WOOD SCRAPER..SO YOU DON'T SCRATCH THROTTLE BORE AND CLEAN DEPOSITS FROM THROTTLE BODY/PLATE..HAVE SEEN THIS CAUSE STICKING OF GAS PEDAL..I HOPE THIS HELPS..WHEN DONE CLEANING,REINSTALL THROTTLE BODY AND RELATED PARTS

The throttle body is where the carburetor used to be, in the middle top of the intake manifold where the air intake tube ends.
Use a major brand "Fuel throttle body cleaner" in your gas tank every 6 months or so. Don't use store brand. Ther eis also a spray for the linkage, etc. Use that too... and spray into the throttle body with engine running. Don't let the engine die while spraying into the throttle body.

eather o-ring is bad or throttle body injecter is cracked