Question about 2002 GMC Sierra

Open Question

Starts off and on intermittently

I turn the key the engines starts perfectly.
drive around, stop. turn the key...nothing... only the radio works.
stick my head under the hood, jiggle a few wires, it starts again.
Weird.. this happens off and on all day long.
the strange thing is when the truck won't start, the lights don't work or any of the power group just the radio and fan.
Come back 1/2 hour later everything is fine.
this truck is really bothering me.
all the battery posts are tight and fine.
please help.

Posted by on

Ad

6 Suggested Answers

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
  • 2 Answers

SOURCE: Truck keeps stalling

you have a leaking manifold gasket

Posted on Dec 08, 2008

Ad
  • 94 Answers

SOURCE: GMC Sierra 2002 4.3 V6 P1345

intake gasket i had the same problem with my truck

Posted on Mar 09, 2009

big tv set
  • 25 Answers

SOURCE: 02 GMC Sierra 4.3 V6 P1345

Well that sounds like a tough one , But here is a site worth checking out . Several mechanics use this it to help out people like your self that are frustrated and are getting P #$%$# off ! Good luck

http://www.obd-codes.com/forums/search.php?search_id=active_topics

Posted on Mar 09, 2009

  • 1 Answer

SOURCE: 2007 yukon xl battery dead recharged battery will

We had the same issue with our 2007 Yukon Denali XL. Died on us twice after sitting for short periods of time; once we watched a DVD with the engine off and battery died within 10 minutes. The dealership kept it overnight to troubleshoot why the battery died so quickly. They said the radio was "pulling" too much from the battery. (They supposably fixed it) But again a few days later the battery died again after sitting overnight. We brought it back to the dealership and they brought in a GMC "expert" to replace the entire DVD/CD/Navigation system. They also replaced our battery with a much larger battery, similar to the ones that GMC puts in there diesel trucks. They had our Denali for 5 days, but it appears to be fixed now.
Getting it fixed correctly wasn't without headaches, but it was all covered under warranty, including the battery. And they are updating the nav w/ the new edition disc as well for no charge.

Posted on Apr 24, 2009

  • 6982 Answers

SOURCE: Lack of power when accelerating

You really should have a code check done. There are numerous items that can give you similar symptoms. Two places to look are the fuel filter (usually overlooked till they gum up, and the throttle position sensor (but test it first with an ohmeter. You will need a manual (vehicle specific ones are available at most larger parts stores and most of those stores also do code testing free)

Posted on May 27, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Intermittent starter issues. On my boat it very hard to access the starter and solenoid. When my boat starts it runs perfect. I can start and run it and shut it off numerous times. Now twice it has refused...


replace the solenoid,but,if you are worried about being stranded,while you are there,replace the starter and on all connections,use electrical grease,to keep corrosion away,always use lock washers so nothing gets loose too.

Jul 20, 2015 | Cars & Trucks

1 Answer

I have a 1995 gmc sierra c1500 and the radio in it stopped working. The last time I drove the truck it worked perfectly fine then somebody left my key turned so my battery died. I recharged the battery...


You also have a fuse in the fuse box that is for the radio is the radio the only thing that is not working because sometimes there are more than one fuse that controls the radio

Mar 04, 2015 | GMC Cars & Trucks

1 Answer

97 GMC 1500 radio worked fine and recently stopped. Radio will only work when truck is turned off. Volume will not work either. All fuses are good and wiring to the radio is good after testing. Should I...


radio's do fail if the radio and nothing ells is wrong you can replace the radio. buttons stopping working on the radio is a good sign there is a problem with the radio and nothing ells is wrong with the wiring. it may have over heated some time ago and has been working on borrowed time from the other components in the radio. now working with the engine running is down to there is more volts running into the radio with the engine running . no engine running it will have a steady 12v around. but with engine running it would be around 14v or just under. would replace radio one from same year as yours or same radio code type. hope this helps you

Feb 16, 2014 | 1997 GMC Sierra

1 Answer

2002 cadillac escalade engine doesn't crank


From your description, it could be a defective ignition switch

Nov 12, 2012 | 2002 Cadillac Escalade Base

1 Answer

2003 Tacoma Intermittent Starting problems


If your able to drive to Autozone,they will check your alternator and battery for free.

Aug 28, 2012 | 2003 Toyota Tacoma

2 Answers

Let's see if there is really a diagnostic expert out there for this... 1996 Plymouth Voyager 3.3L engine with 165,000 miles. I'm having intermittent starting problems. I can drive for weeks and no...


The way to approach this sreies of issues is to first remove the remote start/alarm from the equation and restore the vans electrical system back to original. From there, if it persists, we can do more trouble shooting. Let me know and I can walk you through the process. This is definately a problem that does require a diagnostician. Thank you for the level of detail you provided!

Mar 19, 2010 | 1996 Plymouth Voyager

1 Answer

1997 sable with 12000 miles electrical problems


earth cable from body to engine and battery to chassis ,clean the connections and fit an additional cable ,also clean and grease the battery terminal

Jan 25, 2010 | 1997 Mercury Sable

1 Answer

Intermittently not starting--problems with all gauges, radio etc . Sometimes starts right up, other times, turn key, nothing happens, remove key, abs, airbag and security light stay on, when attempting to...


Check to make sure the ground lead-off wire to the fenderwell has not come loose or corroded. Also make sure you have a good engine to fierwall ground, this is the flat braided uncoated piece of connector running from the firewall usually to an intake manifold bolt. Thanks, Dana.

Aug 17, 2009 | 2001 Chevrolet Venture

1 Answer

I have a 96 Olds Cutlass Supreme that intermittently won't start


If the lights on the dash all come on but the engine wont turn over it could be a problem with the VAT security system. Your key has a little chip on it between the teeth and the handle. This is a common problem with GMs', often just replacing the key is necessary but sometimes the VAT module needs to be replaced.

Jun 18, 2009 | 1996 Oldsmobile Cutlass Supreme Coupe

1 Answer

Ignition key turns on but car will not start


I suspect the ignition switch is malfunctioning.

Nov 19, 2008 | 2000 Ford Focus

Not finding what you are looking for?
2002 GMC Sierra Logo

Related Topics:

32 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...