Question about 1997 Chevrolet Blazer

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I Have a 1997 Blazer I have to put fuel in the carburetor to start it.... when it starts it revs even if I don't give it gas then it stalls out. It ran fine for a day or two after sitting for a while.

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  • Chevrolet Master
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If i remember correctly a 97 blazer has fuel injection and not a carb , hence the reason it starts and revs up when you dump gas in the intake plenum ,this by the way is very dangerious to do could cause a backfire and set the engine on fire, now onto your problem you will have to locate the hi pressure fuel rail this is gonna look like a square piece of pipe with a tire valve sticking out of it some where on the top of engine ,this is the fuel pressure test point you need to cycle the ing key several times then using a key end or ink pen (not a pencil) deflecting the tire valve looking thing (shrader valve) away from your face and eyes with something solid depress the center of the valve there should be a spray of fuel at this valve if and i suspect not you have a fuel pump problem it is located inside the fuel tank and sorry to say is a common problem for this type and model gm sells a lot of them as replacement parts each year remember when working on a fuel tank remember thats gasoline in there and sparks from wires and tools can make it explode disconnect battery first and drain the fuel tank first and still treat it carefully as the fumes are just as dangerious

Posted on Oct 15, 2013

Testimonial: "The fuel pump and the fuel filter are both good. get gas all the way up to the engine, just not squirting fuel into the throttle body."

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Posted on Jan 02, 2017

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SOURCE: 1997 chevy blazer trouble starting

97 don't have carb that year its TBI injection . Inspect/fuelpump relay/pressurereg.switch/pump/filter

Posted on Nov 25, 2008

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SOURCE: 1999 chevy blazer fuel problem

probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold

Posted on Nov 30, 2008

  • 295 Answers

SOURCE: HELP! HELP! SOMEONE PLEASE ! 2001 chevy blazer fuel problems

I would check to be on the safe side the fuel filter is going in the right direction. The arrow is pointing towards the engine away from the fuel tank, Then you need to make sure the fuel pump wiring connections are good contact and did not come loose when driving.

Posted on Mar 18, 2009

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This sounds like a couple different things. Lets start with the easier idea first. You need to locate the fuel filter and remove it and blow into the end that points to the carburetor. Point the other end at your hand or in a cup and catch the gas that comes out. If there was a good bit of debree then replace it and see if it fixed the problem. If it did buy a new filter next time it starts acting up, If not then it would be wise to check all the vacuum hoses for leaks or if one has come loose. If you can't see any leaks or loose ones then get a can of carburetor cleaner and as the engine is runnoing spay short spurts around the motor area. If the engine revs up to a faster idle then there is a leak. Do not spray right at the throat of the carburetor intake. That will rev for sure and there is nothing wrong there when it revs up. It would be like giving it gas.
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You can adjust the carburetor with a straight blade screwdriver.Remove the air cleaner and have someone push the gas pedal,you'll see a lever connected to the carb moving back and forth,this is the accelerator linkage.While looking straight at the linkage you'll see a screw between the linkage and the carb.Using the straight blade screw driver turn clockwise a quarter turn.Replace the air cleaner and start the engine.The RPMs should be higher, now hold the brake pedal and put it in gear.Stays running,your good to go,otherwise give her another quarter turn.Now this is a "get-by"solution,you need to give some attention to your engine by giving it a tune up!That means changing:distributor cap&rotor,spark plugs&wires,carburetor rebuild,oil change and lube.Oh yeah,tighten down the four 1/2" bolts holding down the carburetor too!You could have a vacuum leak under the carb or even a vacuum line disconnected.This will also cause the low idle speed!Good luck!

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