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Norma Hand Posted on Feb 20, 2017

My 2003 GMC Sonoma the idle speed is running low but I don't know which screw adjust the idle where is it

5 Related Answers

Ajkill

Anand Kumar

  • 2035 Answers
  • Posted on Jun 03, 2008

SOURCE: my 1997 gmc sonoma

This the problem with IAT bad inlet air temp (IAT) sensor.Get it replaced....................

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emissionwiz

Marvin

  • 85242 Answers
  • Posted on May 19, 2009

SOURCE: Starter in a 1992 GMC Sonoma 4.3 v6

bottom rear of engine on the passenger side, the starter is serviced from under the car. it is held to the engine block with two bolts, then u must remove the battery cable and starter solenoid wiring as well, always disconnect the battery before doing any work on the starter.

Anonymous

  • 1 Answer
  • Posted on Jun 17, 2009

SOURCE: what is the firing order on a 2000 4.3 gmc sonoma?

i dont know how they got it....i was just told that they got it......MEN!!!!

Anonymous

  • 175 Answers
  • Posted on Jul 04, 2009

SOURCE: how do you change an idle control valve on a 2003 gmc envoy

The idle air control valve will be located at the top of the engine on top of the intake manifold. If you hold the new valve and then look at the manifold you should see where it goes. I'm guessing it'll have 2 screws and 1 electrical connector. The one's that I've replaced were very easy to get to and replace. Not sure on your vehicle. The screws may be phillips or torx type heads. Good luck, if this helps please rate this. Thanks.

Anonymous

  • 334 Answers
  • Posted on Dec 08, 2009

SOURCE: 2003 GMC SONOMA IS STUCK IN FOUR WHELL DRIVE

That is most likely the front differential actuator ...let me know how that works out please

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1answer

Is there a special tool needed to adjust the idle screw on a 1999 sonoma. Torn bits don't fit. Looks like a five star type of bit

1999 GMC Sonoma Idle Control Valve 1999 GMC Sonoma Idle Control Valve

it is not to be adjusted,the gasket might be gone,read more about it,the screw is a Silverhill 5 Point Star Tamper Proof Bit
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I have a 1986 GMC 1500 with a 5.0 and stock rochester carb. The truck will start but you must keep gassing it as it won't idle. It kicks off every time. Any suggestions on how to fix this cold natured

fast idle speed screw, works off the fast idle cam which the choke adjustment sets, it works together by linkages. This is the raised idle speed setting you need to keep a cold engine running. First you set the idle speed by the idle speed screw with engine at normal operating temperature. Then you set the linkage up so the cam is on a raised step, throttle will be held on that raised step. then you can turn the idle speed screw to get idle at about 1500-1800 rpm. Now when you start engine cold, choke will set the fast idle cam on that raised step- when engine starts and runs it should be running at your fast idle setting. That's how it supposed to work, you just have to get everything adjusted right. I hate carburetors, they never stay adjusted right. Considering their complexity and small mechanical parts, no wonder.
0helpful
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My gmc sonoma keep stalling when i stop runs fine while idleing

One possibility is a faulty idle air control valve.
The computer controls idle speed by adjusting the air coming into the intake around the throttle.
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Speed sensor replacement on a 92 gmc sonoma

Speed sensor on a 2003 gm sonoma 4.3L auto trans.
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1986 dodge ram 225ci slant six and a single barrel holley carb

Start with the idle needle screw first, the idle mixture screw. Seat it all the way in, first-don't overtighten and damage it, just seat it lightly, and back out two full turns. Run the engine and set the adjustment by ear to get your best lean idle: start turning the screw in (clockwise) 1/8 or 1/4 turn at a time till engine stumbles, dies, or runs rough. Keep the engine running, and turn screw out (counterclockwise) a little at a time till you hear the idle dropping. Now between those two settings is your best lean idle. Turn the screw in, a little at a time and wait for engine to respond, tiill you get the highest idle speed. Now set the other idle screw, curb idle, to the idle setting for your truck, probably about 700 rpm. You can move back and forth between the screws to get the best steady idle. Just don't over do it on the idle mixture screw.
Good luck.
0helpful
1answer

My truck starts and stalls and will not idle

Try increasing the idle speed. If you don't know, this is how to do it.
Open the bonnet and ask someone to push and release the gas pedal a five second intervals.
Observe which part is moving.
Yo will see a small adjustment screw on that lever. You will understand that by adjusting the screw you can increase the gas supply to the engine.
Slowly rotate the screw while the engine is running. (If the engine doesn't run in idle state as you have explained, ask someone to keep the pedal slightly pressed. After increasing the gas supply, ask the person to release the pedal).
Adjust it further to get a smooth running condition at idling.
Also check whether air cleaner is blocked.
0helpful
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1994 Sonoma: 1994 GMC Sanoma with 4.3 fuel injection. Idle spee...

that is un adjustable you would have to change the idle postion sensor
0helpful
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1995 GMC Sonoma ideals a little rough like it is

as time goes on yes so the idle speed control is wearing out
0helpful
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Has low power, surges @ cruizing speed, rough idle (code 32)

You can remove the egr and see if it has been sealing,and if it still moves.
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