Engine stalls at idle?

Tiny
PHILIPLUCKEY
  • MEMBER
  • 2003 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 145,000 MILES
The truck starts fine but dies in about 5 seconds. When running it is smooth acts as if the igniiton is turned off. Fuel pump replaced and has 12 VDC all still running after the engine dies. Anti theft? Truck does not have power locks.
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Monday, November 9th, 2009 AT 6:30 AM

15 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
If the fuel pump is still running after the engine dies, then it isn't the anti-theft. Does it start right back up for another 5 seconds or do you have to wait to restart it? Has the check engine light come on? Here are tow guides to help us fix it

https://www.2carpros.com/articles/how-to-reset-a-security-system

and

https://www.2carpros.com/articles/stall-at-idle

Let us know what happens and please upload pictures or videos of the problem.
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Thursday, November 12th, 2009 AT 8:06 AM
Tiny
BADFISH
  • MEMBER
  • 2003 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
2003 chevy S 10 pickup stalls at idle unless gas is given. What could be the problem?
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Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
MERLIN2021
  • EXPERT
Idle air control valve bolted to the throttle body, or the TPS(throttle possition sensor) also bolted to the TB.
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Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
AB5BX
  • MEMBER
Clean your throttle/air intake with throttle and air intake cleaner. This video shows you how on your truck. It is not the greatest video but more than adequate to show you how to do it. Some recommend just using s rag to clean the intake instead of a brush as a brush may damage the special coating on some air intakes. This fixed my problem of the engine stalling at idle while in gear. Check it out:

https://youtu.be/N2nC4V9DrdQ

Please run down this guide and report back.
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+2
Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
AB5BX
  • MEMBER
This video is not your car but better view of throttle/air intake.
http://www.youtube.com/watch?v=41yFXjibtLY&feature=related
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Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
BRADS 02 S10 ZR2
  • MEMBER
  • 2002 CHEVROLET S-10
The main problem is my truck keeps stalling, but it's intermittent. Problem began a week ago, and I haven't driven it much since.

It began as I was driving, and the electrical/guages seemed screwy - as I was going 30 mph, all of the guages (speed, rpm, elect, oil pressure, etc) would suddenly drop to zero quickly and steadily come back to normal, and it repeated several times. The engine still ran smoothly at speed, but I noticed that the radio had electrical feedback from the motor, and the digital odometer and radio seemed to go dim and come back, kind of flickering. Then the guage problem went away (and I don't think I've seen it since), but the engine would stall when I stopped at a stop sign. When I started it again, and put it in drive (or reverse), it would stall unless I revved the engine (feathering the rpm slightly higher) and put it in drive.

Since last week, I started it several times and sometimes it would start and run perfectly, other times the same stuff would happen. Even after sitting for several days, the engine seemed to turn over fine - although one time it started fine, then was completely dead a few minutes later, then started and ran rough / stalled again.

I had the plugs, wires, cap and rotor replaced a few weeks ago and it ran fine for at least 2 weeks before this, but I'll check if something has come loose. Also, I have a Hypertech tuner and no trouble codes have come up, and I just removed the only mod I had programmed, the shift firmness.

Thanks for any suggestions you can give me. I'll try to try them myself if possible, otherwise let a shop that I trust take care of me if it's beyond my abilities. I just don't want them to tell me they can't find any problems when they can't duplicate it!

. Brad ?
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Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
DIDAHDITGOD
  • MEMBER
I just had the exact same problem with my truck. It is also a 2002 S-10. I ended up checking the battery first and found that every lead coming from the positive terminal was severely corroded. I followed them down to the junction with the 175amp fuse that leads to the accessories and found that corroded as well. I ended up going to Wal-Mart and getting a new side-post terminal cable and a second cable to splice for the accessories as the cables will be dealer parts and the dealer was closed. So far I have not had the problem after these repairs.
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Friday, January 29th, 2021 AT 10:59 AM (Merged)
Tiny
YOUNGDJ
  • MEMBER
  • 2002 CHEVROLET S-10
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 198,000 MILES
I am experiencing a hesitation while engine is cool around 100 degrees and idling or while driving, but once the temperature rises to 150 degrees, either idling or driving the hesitation goes away. Seems to only occur while cold. Any idea what is causing this?
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Chances are there is a problem with the coolant temperature sensor. The sensor tells the computer how cold the engine is and from that, the computer determines how rich or lean to make the fuel mixture. If you have access to a live data scanner, check to see if the temperature reading from the sensor is accurate when cold.
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
YOUNGDJ
  • MEMBER
I have a OBD II scan tool and will check this out, my service engine soon light is not lite up but not sure if this problem would cause the panel light to light up.
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
The interesting part is if the sensor is sending a signal (even if it's wrong) the computer assumes it's working. Thus, it doesn't set the light.
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
HRANSDELLJR@ZOOMINTERNET.NET
  • MEMBER
  • 2002 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 76,500 MILES
Battery went dead, jumped truck and let run. Now the truck starts and idles, but when put in any gear it dies. It will restart but will not continue to run when put in gear. 2002 chevy s10 4x4 automatic with 4.3 l v-tech
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
JDL
  • EXPERT
Hard to tell, electronics don't like voltage spikes, which can happen with a jump. Any trouble codes? This guide can help us fix it

https://www.2carpros.com/articles/engine-stalls-idles-too-high-low-after-dead-or-replaced-battery

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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
HRANSDELLJR@ZOOMINTERNET.NET
  • MEMBER
Thank you that fix it!
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Friday, January 29th, 2021 AT 11:00 AM (Merged)
Tiny
JDL
  • EXPERT
Have a good day
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Friday, January 29th, 2021 AT 11:00 AM (Merged)

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