Question about 2003 GMC Sierra 1500

2 Answers

Rought idle then boggs out and shuts off.

Its a 2003; 104,000 miles. it has a rought idle and then it boggs out and shuts off. would it be the plugs and wires or somthing like that?

Posted by on

  • Michael Masters
    Michael Masters May 11, 2010

    any blow by or white or blue smoke coming from the tail pipe?

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Also try to clean build up from around the throttle plate in the throttle body, should make it idle smoother.

Posted on Jun 03, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 21 Answers

I would start with changing the plugs, especially if they are original. If doing yourself, make sure to use anti-seize on threads of new plugs, gap plugs to manufacturer specs, and properly torque plugs to manufacturer specs.
Also, if it has been sitting for a while, change fuel filter, oil, and top off with fresh gas.

Posted on May 18, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I fix, bad idle in suzuki swift , check light on, no codes.


the title is contradiction
" check light on, no codes."<< totally wrong
scan it one more time with a REAL scan tool this time. (there are DTC errors , or codes as you said)

what does bad idle mean? misfiring, or idle speed too low
or too high? RPM, or
surging?

say what that means please.
and more important is engine hot or cold ? failing.???? or both????
there are over 50 causes.
but can be broken down to simple physics and gauges.
1: engine bad, lost compression.
2: engine cant breath, dirty air cleaner
3: ISC stuck closed or open or just stuck. (bad idle air supply)
4: bad spark, 1 or all 4 (never had a tune in this decade.
5: cam drive, slipped (belt) causing #1 failure.
6: air fuel mix too lean, and causes rpm drop and ISC fails.
7: air fuel mix too rich and misfires.
8: egr stuck open, it misfires and ISC gives up.
9: cat clogged, engine cant breath #2 like.
10: and the vast other reasons for misfire.

we cant drive it, see it or hear it misfire, so.....????

there is a test for all 10, ask. or get car serviced.

Jul 29, 2015 | 2010 Suzuki Swift 1.6

1 Answer

50000miles cts 2006 2.8 engine idles a litte rought somtimes a stop lights


You changed the spark plugs twice since 2006?

Every three years-- I do mine

Ignition Coils won't last 8 years,not all of them

You have to look at scan tool data & road test

Can not use a car for years & never work on it

Your dealing with time in years & heat cycles

Nothing at all to do with mileage

Usually 100,000 miles you change oxygen sensors

Yours are 9 years old,so they go based on time & again
scope them, for switching times & look at the data

Don't change your oil 3 times a year,you have engine wear

Could be any number of things causing your cars issues

Aug 16, 2014 | 2006 Cadillac CTS

1 Answer

Po302


code po302 is a misfire on cylinder #2
there are several things that can cause this, from a loose wire, to a cracked engine block.
First I would check the spark plug leads, and the plug itself,and go from there.

Jan 30, 2014 | 2006 Hummer H3

1 Answer

1989 chevy silverado spark plug gap?5.7 k1500


Always use stock type plugs,that what there called for,some vehicles like yours don't run good on other types.They come set at factory,I always check gap and they are always right.As they say,it ain't broke don't fix it.

Mar 22, 2013 | 1989 Chevrolet K1500

1 Answer

Car wants to shut off get rought idle when i turn ac on


Clean the throttle interior, throttle plate, idle air control valve passageways and idle air control valve itself until like new and this should be enough to cure everything. Takes about an hour and a little WD40 on a cloth.

Mar 14, 2011 | Honda Accord Cars & Trucks

1 Answer

MY F250 IS ROUGHT AT COLD AND IT TAKES TO WARM UP. AND EVEN AFTER WARM UP IS ROUGHT BUT NOT AS MUCH. A MECHANIC CLEAN THE EGR AND IT IMPROVE BY 85 PERCENT BUT IS STILL ROUGHT


If you already check for vacuum leaks, change the plugs, fuel and air filters, the next step is to remove the plastic duct from the TB to expose and wipe clean the IAT sensor (screen covering TB entrance) applying Carb. Cleaner into a clean rag to wipe it clean. Do not apply Carb. Cleaner directly into TB or IAT Sensor. If problem persists, your IAC valve may be defective.

The Idle Air Control (IAC) valve adjusts the engine idle speed. The valve is located on the side of the throttle body. The valve is controlled by a duty cycle signal from the PCM and allows air to bypass the throttle plate in order to maintain the proper idle speed.

Do not attempt to clean the IAC valve. Carburetor tune-up cleaners or any type of solvent cleaners will damage the internal components of the valve.



Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa!!

Feb 18, 2011 | 1999 Ford F250 Regular Cab

1 Answer

Whenever I drive my 2002 Chevrolet trailblazer


does it shut off then after 5 minutes while cooling down will it start up again then run a few miles then shut off again. if so it is your crank sensor. if your vehicle shuts off while driving and you give it some gas and it boggs out it could be your fuel pump or filter.

Sep 15, 2009 | 2002 Chevrolet Blazer

1 Answer

Bogging while heavy accelration.


vacuum advance working ? do manuel check with cap and rotor button off and see if it's moving. chris

May 08, 2009 | Mitsubishi Diamante Cars & Trucks

1 Answer

Stall out when given gas to excellerate ... runs fine in idle


For all those out there that have had problems with your Chevy Aveo Stalling, inconsistent idling, hard to start, or throttle problems, Hollywood Harv has the answer for you. Try a new Valve Idling Air Cont GM part number 93744675. You only need one and it has to be install by Chevrolet so they can place in the codes to make it work properly. Toss the old one away as most likely has so much carbon build up on the part that it stuck or struggling to function properly. It worked on mine after many different attempts at other stuff! This is a sure winner! Good luck and drive safe! Hollywood Harv

Mar 24, 2009 | 2006 Chevrolet Aveo

1 Answer

2001 kia sportage driving home car died at 50mph


look in side the panels in the rear of the car, on the inside next to the tell lights, there should be a red button on a switch, push the button and turn the key on if you dont hear anything then your pump is bad or the wiring to the pump went bad, known to rought on the plug

Feb 28, 2009 | 2001 Kia Sportage

Not finding what you are looking for?
Cars & Trucks Logo

272 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...