1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

05 chevy runs 20 min then shuts down

Old Dec 22, 2018 | 7:15 PM
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Default 05 chevy runs 20 min then shuts down

My 05 silverado shuts down after 30 min cranks but won't start I let it sit over night then is starts perfect next day I have proper fuel preasure and can hear pump prime but acts like no fuel anyone see this happen also a week ago my cooling fans started running all the time even when truck is off

Last edited by Josh h; Dec 22, 2018 at 7:44 PM.
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Old Dec 22, 2018 | 9:16 PM
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Originally Posted by Josh h
My 05 silverado shuts down after 30 min cranks but won't start I let it sit over night then is starts perfect next day I have proper fuel preasure and can hear pump prime but acts like no fuel anyone see this happen also a week ago my cooling fans started running all the time even when truck is off
Sounds to me like a heat build up issue. Could be the fuel pump or one of the ignition parts going south.
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Old Dec 22, 2018 | 11:25 PM
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I'm going to change all cooling sensors tomorrow
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Old Dec 23, 2018 | 2:29 PM
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Originally Posted by Josh h
I'm going to change all cooling sensors tomorrow
Sure glad my 1998 K-1500 has a typical old-style fan with a shroud.
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Old Dec 23, 2018 | 3:23 PM
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Default Changed sensors

I changed cooling temp sensor fan switch all relays still won't run I have spark fuel and compression any ideas?
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Old Dec 23, 2018 | 5:50 PM
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What is the fuel pressure?
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Old Dec 23, 2018 | 6:16 PM
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Default 60 psi

Coils are good ignition is good but im not getting spark
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Old Dec 23, 2018 | 7:46 PM
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At that point, and intermittent, without spark, PCM?
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Old Dec 23, 2018 | 7:50 PM
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Either pcm or ignition control is all I can guess
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Old Dec 24, 2018 | 3:54 PM
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Default Changed ignition

Still the same scrap shuts off won't run for 12 hrs I'm looking for a used computer now just to check it
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