Question about 1992 Chevrolet S-10 Blazer

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1992 CHEVROLET 4.3 1991 CHEVROLET 4.3

WHEN TURNING IT OVER FUEL IS DUMPING WHILE TURNING IT OVER OPENING THE THROTTLE ALL THE WAY IT BARELY COMES OUT ITS LIKE THE FUEL IS REVERSED

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Thats normal its suppost to keep from flooding eng.if not running

Posted on Oct 20, 2008

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My Capri dumps fuel has spark won't start


If it's "dumping" fuel into the engine, the computer has it cold start mode. Stay off the throttle pedal when try to start after a good while to allow fuel to clear. If it won't start then, you've a fuel regulation problem on cold start. But do wait a good while for fuel to clear fron engine, then try to start without touching the throttle. It's meant to be this way.

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Why will my 1988 chev truck not strat when its getting too the throttle body. But will run when your pouring gass in the throttle body.


Is the fuel pump turning on? If you don't hear it turn on try banging the actual tank with a rubber mallet while someone tries turning the key. If it it does turn on, it's definitely your fuel pump. I can walk you through changing it if it comes to that

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Throttle body float stuck


They are pulling your leg

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Could be an issue with the Mass Air Flow Sensor

Wrong reading on air flow you add too much fuel

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1 Answer

91 s10 4.3 is dumping fuel causing a start and stall situation


Sounds like it is too lean if you have to take it easy with the throttle.
Too much fuel should make it not idle but run better with the throttle open.
Yes the regulator could be allowing fuel into the intake.
A shorted injector could be grounding the others and making them "on" too much.
One or two injectors could be dirty and leaking fuel when they are supposed to be closed.

Jul 31, 2012 | 1991 Chevrolet S-10

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1990 chevy blazer 350 ci throttle body fuel injected . the motor is flooding out u can see the injectors keep dumping fuel into the throttle body


Sounds like you have an injector leaking. Have someone just cycle the key on and off to run the fuel pump but don't crank the engine. If you see fuel dripping from the injectors, unbolt the injector cover on the throttle body, remove the injectors and replace the orings around the injectors.

Jul 22, 2010 | 1991 Chevrolet C1500

2 Answers

My chevrolet 2003 tahoe want start it turns over but want start the batery is good fuel system it think


if battery good starters good that still leaves fuel,air,spark or timing you could try disconnecting throttle body hose that comes from the air filter try starting if still no start spray throttle body cleaner in the throttle while someone starts. Do you hear the fuel pump coming on when turning key to the on position. Have you checked to see if it is getting fire to the plugs?

Mar 18, 2010 | 2003 Chevrolet Tahoe

1 Answer

Took off TPS? to clean up. Replaced with new gasket now motor will turn over but not start. Have spark, no fuel. 1992 vette. Do I need to reset computer? Unplugged IAC and MaF and tried to start. No go....


could have damaged the tps. if the tps shorts out and shows like its full throttle, it goes into clear flood mode and shuts down the injectors. try unplugging the tps and try to start. it it starts, replace the tps.

Jan 25, 2010 | 1992 Chevrolet Corvette

2 Answers

1996 cavalier running rough at idle


check the fuel pressure regulator, mine broke the diaphram and was dumping fuel in it

Jun 18, 2009 | 1996 Chevrolet Cavalier

2 Answers

Fuel issue?


Check fuel pressure - 9-13psi
high fuel pressure - check fuel regulator, inside the throttle body, check for restricked fuel-return.

Make sure EGR valve is NOT stuck Open.

Inspect injector spray pattern - both should be the same, a light mist when idling.

Codes ? who cares, there's probably several by now.

You're going to need proper equipment to test your fuel pressure, be carefull and don't start any fires, Have a Fire Extingusher Ready!.

Keep an eye on fuel build-up in the engine's oil, if it is it is also washing the necessary oil from the cylinder walls.

EVAP-system, ya, not likely but if everything else this far checks okay. check for raw fuel in the line or disconnect the line & retest.

let us know?

Mar 13, 2009 | Chevrolet 1500 Cars & Trucks

1 Answer

Engine sometimes stops during traffic. only happens when the aircon is open what do you think the problem? is there anything to do with my fuel pump or compressor or the engine?


I'd remove & clean your idle speed motor first. Referred to as a.i.s. , or i.a.c. motor, but they are same thing. It controls idle under load, for example when AC is on, turning, electric fans kick on etc. Get some throttle body cleaner(spray) and do inside throttle body opening too.

Jul 16, 2008 | 1992 Nissan Sentra 4 Door

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