Question about Chevrolet Suburban 1500

1 Answer

My 79 suburban will start every time and run smooth for 3 to 10 seconds and then dies like i shut off the engine all the while the injectors are still pumpung gas in the throttle body. i replaced the cap and rotor, plugs and wires also the module located it the base of the distributer and still no luck

Posted by on

  • normancla77 Sep 11, 2009

    i tested the coil it was fine

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 224 Answers

Check your coil

Posted on Sep 11, 2009

  • rchapman24 Sep 11, 2009

    throttle position sensor

×

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

93 toyota pickup 4x4 it will stay running after I turn it on to start it up, it starts up then after a few seconds it kills


if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

Mar 30, 2013 | Cars & Trucks

1 Answer

99 suburban starts but doesnt stay running


Our F-150 had a similar problem. It was a cam phaser, then timing sensors, I believe, had to be changed as well.

Aug 21, 2012 | 1999 Chevrolet Suburban

1 Answer

Gmc suburban 1996 V8 vortec engine,delayed starting after 1hr. standby.it took 15 seconds of continous starting before engine run.once the engine run i put it off and start it again,it took only 1 second....


Check for fuel presser bleed down, does the fuel presser hold after you shut it off? or does it fall off? if so check for bad pulsar valve or bad injector ect.

Oct 28, 2011 | Cars & Trucks

1 Answer

Hi, my 99 suburban starts then dies after 2 seconds. It runs when gas is added to the intake for as long as I pour it in. The fuel pump is new, and works fine. Pressure is good. the pump stays running...


"the pressure is good" doenst tell anything, if it isnt at least 60psi, its not enough to open the injectors. Its time to have a shop look at it, the rich o2 sensors may be because gas is poured in. Scan data needs to be checked while engine is off, cranking and running to diagnose the problem.

Dec 03, 2010 | 1999 GMC Suburban

1 Answer

89 suburban. No spray from injectors after replacing ESC


The fuel pump should be in the 20s. Also it could be losing presure slowly. Leave the fuel pump pressure gage on for at least 2 to 3 hours to see if it is losing pressure - It's a start

Oct 14, 2009 | 1989 GMC Suburban

1 Answer

A friend has a 1989 Chevy Suburban with two problems. Truck has a 350'' engine, and 4wd. In Cold weather, it will start, then die, and will repeat this many times before it will stay running. In hot...


If it has injectors it has a ecu, if it has an ecu it has a diagnostic port (normally under the drivers/passenger dash) if you look down at seat botton level you should see a small black port) You can go to any auto zone or parts place and they will scan it for free. You may have a head gasket issue with overheating or your cooling fan(s) may not be turning on. Check the codes first

Aug 28, 2009 | 1989 Chevrolet Suburban

1 Answer

Dies when shifted into gear


May be having problems with engine vacuum leaking. Pull the large hose going to the vacuum operated brake booster and block off the hose end with a cork or other plug. Start the engine and see if it runs more smoothly. Set the emergency brake and put in gear--does it idle smoothly? If so, then you likely have a bad vacuum leak within the booster unit. Restore the vacuum hose to the cylinder and arrange to replace the cylinder.

Aug 01, 2009 | 1993 GMC Sonoma Club

2 Answers

WON'T START AFTER RUNNING FINE - STARTS FINE WHEN COLD THEN AFTER RUNNING AWHILE , IF YOU TURN IT OFF - ACTS LIKE IT'S GETTING NO GAS - HAVE NEW FUEL PUMP AND FILTER -


I have the 1999 suburban, and my mechanic says that the injectors are worn, and that when you shut off the engine, fuel pressure continues briefly and the injectors "leak" a bit, flooding the engine briefly. That's why after they still start right up after a few minutes, i.e., not enough time to flood, or they start up cold, having drained any of the fuel out of the injectors. Park for a couple hours, and you've got a mildly flooded engine. Replacing the injectors is what he suggested, but that is pricey. Not sure if this is the answer or not, but it's what I've been told. Good luck!

Jul 18, 2009 | 1999 GMC Suburban

1 Answer

1999 GMC Suburban 350 wont run


Per your description, it sounds like you are missing an injector pulse from the ECM.
Check the under-hood fuse box and verify the "ECM1" fuse is good (12 volt supply to injectors).
With the key in the run position, verify you have 12 volts at an injector.
Barrow or purchase a "noid" light to verify you have an injector ground pulse from the ECM.
Let me know what you find and we can proceed from there.
Regards,

May 07, 2009 | 1999 Chevrolet Suburban

2 Answers

2003 chevy suburban keeps dying


fuel filter. it sounds like it is clogged.

Jan 08, 2009 | 2003 Chevrolet Suburban 1500

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

Related Topics:

52 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

77202 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...