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Truck runs great until it warms up

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  #11  
Old 11-15-2020, 09:32 PM
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Unplug the front O2 sensor, see if the problem goes away.
 
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  #12  
Old 11-15-2020, 10:29 PM
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Originally Posted by HeyYou
Unplug the front O2 sensor, see if the problem goes away.
ok I'll do that tomorrow and see what happens, thanks in advance.
 
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Old 11-16-2020, 02:44 PM
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Ok so I unplugged the front o2 sensor and it seemed like it ran better but still died but alot smoother it died at 172° I'll try to give a link to the video I took of the scanner to show what's all happening hope it helps.
 
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Old 11-16-2020, 03:42 PM
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this will take you to the video
 
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Old 11-16-2020, 06:31 PM
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Is it just me or does it sound like there is some hissing coming in at 5:19 right before it starts to stumble ? Try unplugging the EVAP purge solenoid and see if that makes a difference.
 
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Old 11-16-2020, 06:45 PM
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Originally Posted by DerTruck
Is it just me or does it sound like there is some hissing coming in at 5:19 right before it starts to stumble ? Try unplugging the EVAP purge solenoid and see if that makes a difference.
It does kinda sound like it I can't remember if that was coming from the truck or cars driving by but it didn't sound like a car drove by so I will unplug it and see if that will do anything, now should I replug in my front o2 or leave it unpluged (I'm assuming replug it back in)
 
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Old 11-16-2020, 06:50 PM
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Originally Posted by DerTruck
Is it just me or does it sound like there is some hissing coming in at 5:19 right before it starts to stumble ? Try unplugging the EVAP purge solenoid and see if that makes a difference.
If your talking about what I think you talking about then the evap purge solenoid is already unplugged and I can't find a plug for it
 
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Old 11-16-2020, 06:57 PM
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Is it this?
 
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Old 11-16-2020, 06:58 PM
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If so it's already unplugged and I can't find the plug for it
 
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Old 11-16-2020, 08:12 PM
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Yeah that would be the purge valve. I'm out of ideas, sorry.
 


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