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Old Jun 23, 2010 | 04:34 PM
  #11  
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Originally Posted by 00dakSport
if you want my guess its the fuel system try some system cleaner in the tank. obvious answer but its another easy fix.
cleaner already in the tank, check, thought of that.....HOWEVER, why would you think fuel when it starts/runs fine, EXCEPT when approaching operating temperature?

just for fun I'll also load test the battry and check the voltage, just to give myself something else to check off the list.....

thanks again for the replies gentlemen.....
jay
 
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Old Jun 23, 2010 | 07:32 PM
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I have the 3.9. Agreed, check sensors. somewhere, i thought there was a thread for checking them with ohmeters and voltmeters. The TB comes off with 4 bolts, simple deal.

My 01 works on the tripmeter deal.
 
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Old Jun 28, 2010 | 05:12 PM
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OK, finally made it by HF and got some Torx drives to check the IAB, which I"ll do tonight....although I did pop the air cleaner off this weekend and looked down the carb holes, and dang did it look clean and sparkly down there.....

and just FMI, the battery had 12.85 volts, HOWEVER, it did load-test a little weak.....this cause an intermittant-warming-up-dying problem?
corpus dood
 
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Old Jun 29, 2010 | 05:33 PM
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UPDATE

Ok, it wasn't the IAC.....I pulled that and it was a bit dirty and crusty, cleaned it up and the hole in the throttle body, and no effect at all.....guess I'll try the TPS tonite, was really hoping it was the IAC....

oh, thanks again to someone (?) for the pictorial on how to clean the IAC, it helped a lot.....
corpus dood
 
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Old Jun 30, 2010 | 10:20 AM
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Ok guys, don't leave me stranded here.....I checked the Throttle position sensor last night with the voltmeter, and it was within parameters....so needless to say I didn't remove it and inspect since it tested out.....

so then I got to thinking, since it appears to be a temperature related issue, I unplugged the temperature sensor.....no effect....still fires up, runs down the road until it almost gets to operating temperture, then stalls and dies.....sit for a few minutes, then fires up and will run to timbuktoo with no issues what so ever...it just has to get from cold to operating temperature.....I get the same results whether its warming up on the road or in the driveway.....no difference....

my question is, was the unplugging of the temp sensor a false negative result? I mean, is a malfunctioning sensor going to be the same as no sensor?

come guys, y'all can get this one, I know!
 
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Old Jul 1, 2010 | 09:15 AM
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i have a 00 1500 with a 5.9 dont no if this will help but i will tell u anyway .had trouble with mine wouldnt do it every day but would most days just as it started to warm up it would backfire out intake and missfire. if u went wide open it would take and run . to make a long story short i tryed a lot of parts did plenum fix still doing it . changed o2s both of them . just made a 400 mile trip pulling trailer truck didnt miss a beat. hope this help i no what i went throw trying to fix mine . well i hope mine is fixed time will tell.
 
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Old Jul 1, 2010 | 12:59 PM
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thanks for the reply....

OK guys, here's a good one...remember I have the V6 3.9L....so I look in the Haynes manual, and I'm *supposed* to have two temperature sensors, one for the dash gauge and one that goes to the PCM....the book shows them side by side on the thermostat housing....so I get to looking, and I only have one! WTF?!!!

so, if it doesn't go to the PCM, and only does the gauge, no reason to change it, right?

I'm basically just throwing parts at the problem at this stage, so sad.....anyone ever talk to the dodge engineers/manufacturers for answers?
frustrated corpus dood
 
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Old Jul 1, 2010 | 03:31 PM
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Just an idea, but have you checked the intake air temperature sensor? It is located directly behind the alternator in the manifold. If you have a repair manual it will tell you the minimum and maximum ohms for the given temperature, if it asnt within those peramiters then it needs changed. If need be let me know and I will try to type them all out for ya.
 
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Old Jul 1, 2010 | 04:15 PM
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Originally Posted by cowboy63645
Just an idea, but have you checked the intake air temperature sensor? It is located directly behind the alternator in the manifold. If you have a repair manual it will tell you the minimum and maximum ohms for the given temperature, if it asnt within those peramiters then it needs changed. If need be let me know and I will try to type them all out for ya.
no I have not checked that one yet......I will check that and the MAP sensor this evening.....I just bought some tools today to get at some of those parts (I didn't have any box end wrenches, WTF? guess I lost them in the move).....

its got to be one of these dang sensors, just need to figure out which one, and its probably related to the temperature sensor (because the issue manifests itsself as the truck nears operating temperature).....what the hell changes/moves when a truck gets to operating temp? and then once it dies once and turns back on, it acts like there's no problemo at all after that....

thanks again for the replies....
dood...
 
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Old Jul 1, 2010 | 04:19 PM
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oh yeah, in my earlier post I mentioned that I had unplugged the temp sensor, it was the air intake temp sensor.....so that's the one I'm wondering if might be bad as unplugging it had no effect on how the engine ran?
dood..
 
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