Question about 2003 Chevrolet Suburban 1500

1 Answer

We have a 2003 chevy suburban 5.3 vortec it dies when warmed up

We have a 2003 chevy suburban 5.3 vortec it starts fine idles when cold after it gets warm when you pull to a stop it dies but will start back up any ideas of what this would be???

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,098 Answers

Sounds like either Air mass sensor, Air mass meter or finally the EGR valve this is the exhaust gas recycler I would say that is the fault when they start to go this is what they do until finally the car will barely move.

Also I would check all your air pipes for leaks make sure there is no rips or tears in the pipes, The car will drive fine like you say until you ease of the gas to a stop position it **** in to much air and kills the engine. Air faults are cheaper so look there first.

Hope this helps

Regards
Dan

Posted on Jan 31, 2010

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 Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only 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

When cold my '93 suburban dies but once warm runs fine it has a 454 with tbi


Have you checked to be sure the idle air control is working properly and also the engine temp control sw. The iac only comes on to maintain the idle when the engine is cold. The ect sw monitors the outside temp and tells the computer how much fuel to put to the engine. Hope this helps.

Aug 10, 2015 | 1993 GMC Suburban

2 Answers

High rev at cold (winter cold!) idle


Your toyota technician should know what a "cold starting solenoid" is. It is the little thing that works your throttle until the motor warms up and something else takes over. I'd suggest going to another technician.

Nov 28, 2013 | 2003 Toyota Corolla

1 Answer

1993 Chevy C1500 4.3L V6 TBI starts but dies at idle after warming up.


Low pressure from fuel pump, when the pump is cold the pressure increases, as it warms up the pressure drops (this happens in a pump that is going out) the normal pressure should be at 40 with the key on and engine not running, when started the pressure should stay around 36, any less it won't idle and may run as long as you hold the pedal down. The injectors are opened electronicaly, so as long as there is fuel flow the engine gets fuel to run.So check the fuel pump, soundslike you need a new one

Apr 04, 2013 | Chevrolet Cars & Trucks

1 Answer

Why does my '93 chevy suburban over heat while idle


I would check the clutch fan or (radiator fan), try this when the truck is cold the fan should spin free and when it is warm the fan should stiffen up. the fan should spin slower when cold and faster when warm.

Jul 19, 2012 | Cars & Trucks

1 Answer

My 2003 chevy tahoe won't start in the morning


Many possible causes....Too little info to make an intelligent suggestion. Try charging the problem vehicle's battery with jumper cables for 2 minutes with the supply vehicle running at fast idle (or about 1500-2000 RPM, if it is tachometer equipped) before you try to crank the problem vehicle on a cold morning. If it starts right up, you likely have a weak battery that needs replacing.

Feb 13, 2012 | 2003 Chevrolet Tahoe

1 Answer

Changed the MAF and the idle is still ruff when the engine is cold what do I do?


it runs fine when warms up? is this worse the colder it is outside? if so i believe your problem is leaking intake manifold gaskets. this is common when these get older.it will skip when first started up and after a few minutes smooth out

Jan 17, 2011 | 2003 Chevrolet Suburban 1500

4 Answers

Have a multiple misfire on a 97 chevy suburban 5.7 vortec. Stumbling at idle and during stop and go traffic, idles fine in nuetral. Help?


You might consider replacing the cam sensor. The computer relys on this signal in order to generate spark timing.

Mar 14, 2010 | 1997 Chevrolet Suburban

1 Answer

Idles fine cold/ when it wamrs up it dies 1986 4x4 gmc suburban


This is only a suggestion because it worked for me. With a cool engine, use a can of store brand carb cleaner and spray the heck out of it. Get it into the linkage well and let it sit for up to and hour or so....stuff some rags on the intake manifold to soak up the excess. Then, after letting it sit, get your 'Burb up to operating temp. Should be the ticket for you....and no, your engine won't catch fire.

Mar 10, 2009 | 1986 Chevrolet Suburban

Not finding what you are looking for?
2003 Chevrolet Suburban 1500 Logo

493 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...