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Bill Bartlett
Dodge Dakota
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7/29/2009
22:28:25
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 Subject: 5.2L Thats fine after warm up...
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Just bought a 99 Dakota, 4x4, 5.2L. First some history: Truck has 180k, motor has 80k, just replaced all intake gaskets, plugs, map sensor,and the previous owner used a superchips 3715 MAX Micro Tuner to up the horsepower and i cant get it to go back to the origonal settings. Now for whats wrong: When i start the engine it bogs itself down to about 4k rpms and sputters, then it revs itself up and levels out. It does this about 2 sometimes 3 times until its warmed up. If i drive it without letting it warm up when it bogs down horrificuly when i give it gas. I thought it might need a head gasket, but only once have i had it blow blueish when starting, with no smell of burning antifreeze. Thats all i can think of for now, will post future problems. Btw no codes because previous owner wiped them out.
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well
Dodge Dakota
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7/29/2009
23:18:13
|  RE: 5.2L Thats fine after warm up...
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"Btw no codes because previous owner wiped them out"
Then they should show again again before to long
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Bill Bartlett
Dodge Dakota
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7/30/2009
06:08:08
| RE: 5.2L Thats fine after warm up...
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No codes have come up at all for this problem. He wiped out a code that had something to do with the gas tank.
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well
Dodge Dakota
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7/30/2009
09:39:06
| RE: 5.2L Thats fine after warm up...
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Hi Bill
What I ment was, If the problems were not fixed. Clearing the codes will do no good,
They will re appear. Which in your case might be a good thing. A code for the gas tank would be a first I've heard.
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Bill Bartlett
Dodge Dakota
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7/30/2009
17:08:06
| RE: 5.2L Thats fine after warm up...
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He said th code was from a leak in the small hose that goes to the filler neck, which i fixed when i got the truck. Could it be a bad sensor even without the check engine light coming on?
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02dak4.7
Dodge Dakota
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7/31/2009
11:34:42
| RE: 5.2L Thats fine after warm up...
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I would check out your idle air controller to make sure it is working properly. I had a similar problem on my 93 until I replaced it. It is held on with two torques head screws to the back of your throttle body. Easy to remove and not that expensive to replace, but a good place to start.
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Bill Bartlett
Dodge Dakota
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8/01/2009
19:54:50
| RE: 5.2L Thats fine after warm up...
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New plugs, cap, rotor, and air idle control valve, no change.
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daddio
Dodge Dakota
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8/02/2009
09:02:45
| RE: 5.2L Thats fine after warm up...
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Does it do this only on the first startup in the morning?
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Bill Bartlett
Dodge Dakota
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8/03/2009
06:55:01
| RE: 5.2L Thats fine after warm up...
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It does it whenever the truck sits long enough for the engine to cool down, which is about a half hour.
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Kowalski
GenIII
8/03/2009
07:28:00
| RE: 5.2L Thats fine after warm up...
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Have you checked the fuel pressure ?
Lead, follow, or get out of the way
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daddio
Dodge Dakota
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8/03/2009
08:24:21
| RE: 5.2L Thats fine after warm up...
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^I second that. Get a gage , hook it up and check @ idle and WOT, also after shutting off.
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Kowalski
GenIII
8/03/2009
11:42:34
| RE: 5.2L Thats fine after warm up...
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Maybe also again after it's been shut down for half hour or so you say it takes for symptoms to reappear. One possibility is leaking fuel injecter could be losing fuel pressure; and dumping the fuel into that cylinder.
Lead, follow, or get out of the way
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Bill Bartlett
Dodge Dakota
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8/03/2009
17:57:27
| RE: 5.2L Thats fine after warm up...
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How would i check to so which injector or if it even is the injector? If I dont let it warm up and just drive it it wno go over 1000 rpms and if i give it gas it feels like its not firing at all.
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Kowalski
GenIII
8/03/2009
18:45:39
| RE: 5.2L Thats fine after warm up...
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Did you get a gauge and hook it up ?
If so, what readings are you getting ?
We understand it's not running well until warmed up; no need to keep reiterating that.
Lead, follow, or get out of the way
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James Lease
Dodge Dakota
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8/05/2009
17:17:01
| RE: 5.2L Thats fine after warm up...
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Hey well it look as though you have a stuttering problem. Nothing like a good B1tch smacking to get that solved.
" again again " LOL
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kowalski.
Dodge Dakota
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8/06/2009
12:01:29
| RE: 5.2L Thats fine after warm up...
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your first problem is buying a crap azz dodge with a ton of miles on it.
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Bill Bartlett
Dodge Dakota
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8/09/2009
18:56:25
| RE: 5.2L Thats fine after warm up...
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Hear are the readings for the pressure gauge:
Switch on: 50 psi
Idle: 52-54 psi
Rough Idle: 50-56 psi
After Warm Up: 50 psi
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Kowalski
GenIII
8/10/2009
07:36:04
| RE: 5.2L Thats fine after warm up...
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And what is the pressure after it has been shut down for half an hour or so ? With key off. That is the pressure reading that could point to a leaking injector.
Lead, follow, or get out of the way
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Bill Bartlett
Dodge Dakota
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8/21/2009
17:47:50
| RE: 5.2L Thats fine after warm up...
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I just got a check engine light with the code dtc #01 - P0420. Dont know what its for.
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hey
Dodge Dakota
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8/21/2009
21:16:23
| RE: 5.2L Thats fine after warm up...
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I'm still looking
only thing I found so far
420 The catalyst seems inefficient (#1)
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hey
Dodge Dakota
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8/21/2009
21:18:56
| RE: 5.2L Thats fine after warm up...
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Me again
both books I've checked
Same thing
You have Cat. Con. Issue's
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