Question about 2004 GMC Sierra

1 Answer

I have a 2004 GMC Truck that misses or hesitates

I have a 2004 GMC Sierra Truck that misses or hesitates at 40-50 mph. It is not plugs or wires and no codes have popped up? Any idea where to start?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 233 Answers

If you are sure its not the plugs or wires, I woud go with the coils next, test each one, if they check out ok then perhaps the injectors.

Posted on Oct 08, 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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Done an alt. change after doing a tune up truck ran than just shut down now will not start


Truck ' DIY Forums

www.diyforums.net/truck-2418/
My 2003 chevy Silverado V6 truck turns over but will not start..it acts lik. ... iS IT HARD TO REMOVE AN OIL PAN ON A 4.3 VORTEC S-10 PICK UP TRUCK ...silverado 1500 ext. cab. my problem is while driving on the highway my truck ... mytruck then took off the terminal to see if the alternator was work and now i have no .

Chevy Silverado and GMC Sierra Stalling Problem - Car Forums at ...

forums.edmunds.com > GMC > GMC Sierra 1500

Apr 4, 2008 - 30 posts - ‎22 authors
I can feel the truck hesitate or bump while changing lanes on the highway (70-80 MPH) if it ... Now it idles ... My truck has a 4.3 with automatic. trucks runs great after about a hour it .... It will idle and drive just fine, but will simply shut down. ... the not firing problem, but shuts off after it finally decides to start. Chevy Silverado and GMC Sierra Gasoline Engine ...
30 posts
Jun 14, 2010
Chevy Blazer Fuel Pump and Pressure Regulator Problems
30 posts
Mar 10, 2010
Chevy S10 - GMC S15 and Sonoma Stalling/Dying ...
30 posts
Dec 14, 2007
Silverado starting problem...
30 posts
Nov 15, 2007
More results from forums.edmunds.com

Dec 26, 2015 | 2004 Chevrolet Chevrolet Silverado 1500...

1 Answer

I have a 1993 gmc Sierra extra cab had slight miss


scann the truck for missfire posible plugs or wires cap and rotor and if your engine its a 4.3 whit central fuel injector you my need a new injectors

Oct 19, 2014 | Cars & Trucks

1 Answer

I have a 1993 gmc Sierra extra cab had slight miss


depend your maintenance Schedule but it look like a tune up
like spark plug,spark plug wire. cap ,rotor. air filter ,fuel filter.clean trottle body.
hope it helps

Oct 19, 2014 | 1993 GMC Sierra

1 Answer

Tack & truck jerks at 45 to 46 MPH.


egr valve may be causing problems. also check the throttle position sensor

Apr 21, 2010 | 1993 GMC Sierra C3500

1 Answer

Light came on. Truck drove fine. Stopped for


bad signal from you speed sensor,at the tail end of the transmission.

Jan 21, 2010 | 2004 GMC Sierra

2 Answers

2004 GMC sierra 5.3 eng 1500 transmission shutter 40-55 mph


I too have that problem. I own a 2005 GMC Yukon. Shutters between 40 + 55 mph. I thought for sure the stumble I felt was a plug or coil pack because it only does it under a load. With A/C on the whole truck shakes! But it wasnt the plugs or coil packs. Answers anyone?

May 21, 2009 | 2004 GMC Sierra

1 Answer

Hesitation running


Did you set the base igntion timing to Spec? When you had the cap off to replace the points did you check the springs and weights under the Ign. rotor to make sure they are free and working?
Is the vacum advance working?

Apr 16, 2009 | 2001 Mercury Sable

1 Answer

2004 GMC sierra cylinder miss fire code


Have you put new sparks plugs in it. If you havent I would try them first. Only run the ac delco plugs listed for the truck. I have had many people come threw the shop with misfiring and trucks running like **** and come to find out they put bosch or ngk plugs in it. Your manual says there good for 100,000 miles but there really only good for about 75,000 or so. Also run some lucas fuel treatment or b12 chemtool. both you ad straight to the gas tank. If it calls for one can for 20 gallons buy two and double the treatment it wont hurt you engine.

Jan 31, 2009 | 2004 GMC Sierra 2500

1 Answer

REMOVING SPARK PLUG WIRES


there are some special pliers for removing spark plug wires.

Oct 08, 2008 | 2004 GMC Sierra

Not finding what you are looking for?
2004 GMC Sierra Logo

Related Topics:

287 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...