cold start-up help!!!! - Hemi Truck Club
 
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Old 11-26-2010, 10:40 AM   #1
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cold start-up help!!!!

Hey guys- truck starts perfect everytime when warm, but if its out in the cold like below freezing, it will sometimes crank for a few minutes. It acts like it will hit, then nothing for a few cranks. Its basically a stock 2005 moose, it had cats gutted when I got it. It seems like it floods itself out almost immediately. I also have an issue under full load it will die off till i let out of the throttle. Maybe a bad o2 sensor? any help would be appreciated as I am trying to learn the Hemi stuff. Thanks

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Old 11-26-2010, 01:01 PM   #2
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cold start-up help!!!!

This TSB may shed some light on it.

http://dodgeram.info/tsb/2005/14-002-05.htm
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Old 11-26-2010, 05:56 PM   #3
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cold start-up help!!!!

Good job Dave.
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Old 11-26-2010, 09:20 PM   #4
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cold start-up help!!!!

Thanks guys, I will replace it. It did it this morning when it was just under 30. I had to replace the starter yesterday, probably cause it got tired of working so hard. I will just add it to the list of unemployment I have to pay out. lol
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Old 12-12-2010, 08:57 PM   #5
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cold start-up help!!!!

OK, so I dont think its the throttle body. At idle, in park if i rev it up, it will only rev to 4000 rpm. Driving it I can get it past that, but under hard acceleration in first or 2nd it cuts out real bad and backfires around 4200 then if i back off, I can get it past that. Sometimes its fine. But under cold starting, it floods itself out. This morning, I guess I got a lot of fumes in my exhaust cause my muffler blew open like a grenade, I mean shook the house and blew the muffler completely apart. Weird
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Old 12-13-2010, 08:11 PM   #6
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cold start-up help!!!!

replaced exhaust today, any ideas about the rpm issues?
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Old 12-14-2010, 09:07 AM   #7
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cold start-up help!!!!

Quote:
quote:Originally posted by avdoc:
At idle, in park if i rev it up, it will only rev to 4000 rpm.
thats normal, there's a rev limit in park/neutral. dunno about the rest of your problems, any engine lights?
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Old 12-14-2010, 09:43 AM   #8
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cold start-up help!!!!

Change/re-gap the spark plugs!
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Old 12-14-2010, 12:21 PM   #9
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I will do that. Its probably time for plugs anyway. I also ordered new egr, o2 sensors, and knock sensors in case any of them are struggling. I will replace the ngk's and shorties and get the fatman throttle body. Hopefully in the mix of all this it will get fixed. I worried a while back while spraying sea foam into throttle body i might have got the air sensor dirty.
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Old 12-14-2010, 12:22 PM   #10
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Thanks for everyone's help on this. I greatly appreciate it.
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