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2005 Impala stalls when cold

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Old Oct 19, 2018 | 05:50 PM
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Default 2005 Impala stalls when cold

Working on a 2005 Chevy impala, 3.8 V6 has 145,000 miles on it The car is stalling when it’* cold, usually in the first 10 minutes. It starts back up sometimes right away and other times it takes a couple of tries. We have checked the battery connections, grounds etc. cleaned the Mass air flow sensor, but still have the same problems, no service engine soon lights.

anyone have any suggestions?
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Old Oct 19, 2018 | 10:36 PM
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Originally Posted by Bubky67
Working on a 2005 Chevy impala, 3.8 V6 has 145,000 miles on it The car is stalling when it’* cold, usually in the first 10 minutes. It starts back up sometimes right away and other times it takes a couple of tries. We have checked the battery connections, grounds etc. cleaned the Mass air flow sensor, but still have the same problems, no service engine soon lights.

anyone have any suggestions?
Never stalls warm?

How are the plugs?

How are the wires?

How is the fuel pressure?
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Old Oct 20, 2018 | 09:57 PM
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Clean throttle plate and bore?

Check IAC passage and pintle....
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Old Oct 20, 2018 | 10:29 PM
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How to clean the IAC worked for me...https://www.gmforum.com/normal-maint...800-v6-307092/
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Old Oct 21, 2018 | 11:25 AM
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Default Stalling

Yes the car only seems to stall when cold, plugs and wires are not that old and look fine ok. We’re going to test the fuel pressure next along with the idle circuit

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Old Oct 23, 2018 | 06:18 PM
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Originally Posted by Bubky67
Yes the car only seems to stall when cold, plugs and wires are not that old and look fine
Do you know how many miles they were replaced?

Did you pull the plugs to inspect?

Originally Posted by Bubky67
We’re going to test the fuel pressure next along with the idle circuit
Make sure to watch the gauge starting before the ignition gets turned on after sitting.
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