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Pwhite
Dodge Dakota
8/15/2001
20:28:22
|
 Subject: 4.7 mil light
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Message:
when my 4.7 is cold the exaust smells of gas and my check engin light comes on code is P 0442.
i think its an o2 sensor, has any one had the same problem.
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Muzzy
Dodge Dakota
8/16/2001
05:03:45
|  RE: 4.7 mil light
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Message:
The code p0442 is the following:
Chrysler/Dodge/Plymouth P0442 Small leak detected in the evaporative purge system.
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MACE
Dodge Dakota
8/16/2001
13:21:12
|  RE: 4.7 mil light
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Message:
There is a TSB on this problem. I went to a web site:
http://www.alldata.com/TSB/0117_mo.html
And they listed the TSB for 2 and 4WD DAKs but for the QC, it only showed up for the v6/5.9 engine, so is that to say folks with a QC and 4.7 (regardless of 2 or 4WD) shouldn't have this problem?
Service Bulletins
TSB Number Issue Date TSB Title
25-004-01 MAY 01 Evaporative System - Leak & DTC Diagnostics
What kind of DAK do you have?
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pwhite
Dodge Dakota
8/16/2001
19:03:08
| RE: 4.7 mil light
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Message:
I have a 2000 cc 4.7 5-sp What is the evaporative
purge system?
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Danny
Dodge Dakota
11/29/2001
15:25:52
| RE: 4.7 MIL light
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Message:
My 2002 QC MIL light came on at about 3500 miles. Dealer says it's the code for the evap system leak, but they couldn't find a leak. They replaced the leak detection pump and sent me out the door.
Still no TSB for the 4.7 on this issue as far as I can tell.
-Danny
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Bruce P
Dodge Dakota
11/29/2001
19:02:49
| the evaporative purge system
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Message:
The "the evaporative purge system" is a network of hoses, solenoids, pump and charcoal filter.
This system pulls the "fumes" from the gas tank and stores them in the charcoal filter while parked. When engine is running, the stored fumes are fed into engine to be burned. Without this system, parking garages would become HUGE BOMBS due to all of the gasoline fumes escaping into the air.
The pump is use only for TESTING that the system is functioning properly. A small pressure is built up within the gas tank and a check is made to ensure that the pressure "holds". You may have heard the pump after first starting the engine, It sounds like a slight "thumping" sound in the dashboard for a few minuites after starting the engine.
The most common cause of code p0442 is a gas cap that was not put on tight. However, there is a hose that tends to pop off of the charcoal canistor somtimes... my dealer used a hoseclamp to fix it.
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caribbeankota
Dodge Dakota
JOIN HERE
2/27/2002
07:55:56
| RE: 4.7 mil light
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Message:
This has happened to me twice now what can I do to fix it?? The dealer just rerset the PCM and told me my gas cap was loose......I check the gas cap I am not a moron....Dealer is blowing smoke up my a@@....how else can this be corrected other than a lame reset...i want the real problem to be corrected.
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gowman
Dodge Dakota
JOIN HERE
6/27/2002
10:54:14
| RE: 4.7 mil light
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Message:
Thanks for the info. Thhis just happened to me this morning. I have a '01 4.7 4x4 w/41500 miles. Atleast, I now know that I will make it home tonight...
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OffRoadRuss
Dodge Dakota
JOIN HERE
6/27/2002
11:50:10
| RE: 4.7 mil light
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Message:
I have had this code 2-3 times over the 40,000 miles logged on my 2001 QC... (approximately 120+ fillups)
Every time I have found the gas cap to be a little loose... I never use full serve, so I am sure that I am tightening it a few clicks, but who knows... the light goes away After I make sure the cap is tight AND after I drive about 50 miles and/or start the truck 3-4 times...
I have reset the PCM right away and the light also didn’t come back.. I am pretty sure that it is just a loose cap. There is even a warning at the fillup neck indicating that the light will be tripped if the cap is loose.
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sportdakota
Dodge Dakota
JOIN HERE
8/06/2002
10:18:22
| RE: 4.7 mil light
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Message:
My 01 Q/C 4.7 2WD auto has been in shop about 4 times for this damn MIL light the first time they thought it was a loose gas cap NOT. second time couldnot find anything just reset computer and adv if it comes on again they will do a smoke test. well it came back on 3rd attempt a smoke test was performed and they supposely discovered that the fuel tank not holding pressure during evap test sequence was the cause due to one of the vents on top of the tank had popped out slightly. 4TH ATTEMPT, yesterday, fuel tank comes in they replace tank and less then 24hrs the freakin MIL light is on AGAIN!!!... this is so frustrating the same code has come on the trucks computer p0161 however tech says these codes are not reliable and their equipment show more information. this code if i recall has something to do with oxygen sensor bank 1 or 2/ rationalization code.. i have no clue what means? ANY ONE ELSE EXPERENCE A SIMILAR PROBLEM OR HAVE IDEAS ABOUT WHAT MIGHT BE CAUSING THIS PROBLEM???
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Paul
Dodge Dakota
JOIN HERE
10/27/2002
21:26:05
| RE: 4.7 mil light
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Message:
I have a 200 Dakota with the 4.7 I received the same code P0455 at about 15,000 it went out by itself. Has come and gone for the last 100,000
Now I have P0442 and P0455 and the engine seems to idle rough on cool mornings for the first few minutes, dieing occassionaly and needing a restart. Any ideas ? Someone has suggested o2 sensor
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slow2dak
Dodge Dakota
JOIN HERE
10/27/2002
23:18:38
| RE: 4.7 mil light
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Message:
i may be wrong but i was looking through the MDS at work saturday and if i remember right, there is a flash for this problem. dont hold me to my words, but the flash is for an erronous mil for evap small leak and medium leak detected. i cant say what year model its for but i see the flash all the time when flashing pcm's at work. if i find it ill let you guys know.
02 4.7 RC Sport
3.55 and a one-legged wonder
Home-made y-pipe(removed precats)
3" single(removed 3rd cat) 40 series flowmaster
removed rubber flap
relocated IAT
K & N Drop in
unplugged line pressure sensor
adjustable ECT sensor
removed cluth fan
tps set at .701
245/50/16 Dunlops
best 1/4 mile: 15.401 @ 87.51
best 1/8 mile: 9.69 @ 69.07
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Dr Q
DakotaEnthusiast
10/28/2002
06:57:26
| RE: 4.7 mil light
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Message:
I've had that code pop up about 3-4 times. I tightened the gas cap-it went off. One day I took a good look at the cap anf found a bunch of rust and crap inside. I took an air compressor to it an blew out about a teaspoon of rust out-haven't had a prob since.
Q
Dr.Q
'01 Patriot Blue SLT RC 4.7 5sp 3.92 pegleg
0-60 @ 6.20sec.
1/4mi @ 14.75@97.1
Home Brew Airbox
K&N Drop In
Lakewood Traction Bars
Dremel TB Port and Polish
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Paul
Dodge Dakota
JOIN HERE
10/28/2002
21:34:12
| RE: 4.7 mil light
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Message:
Looks like Dodge is sitting tight on this one. Is ther anyone that has a 4.7 that has'nt gotten the P0455 or P0442 error?
Anyone know about the rough idle when engine is cold? or how to trouble shoot it without just replacing the obvious, has been this way for about 50,000 115,000 and still rolling no major problems.
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Dan Gruber
GenIII
10/28/2002
22:08:36
| RE: 4.7 mil light
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Message:
I had the P0442 code pop a few times. I looked at my gas cap...like Dr. Q I had rust in mine. But mine also made a rattling noise when I shook it and if I looked really closely I could see some cracked plastic. Bought a new gas cap...no rattles and no codes since then.
Dan
2000 CC SLT 4.7 4X4 Auto 3.92 LSD
3 inch Performance Accesories lift & 32 inch BFG MT KM's
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Bryan Coffman
Dodge Dakota
JOIN HERE
2/19/2003
22:03:02
| RE: 4.7 mil light
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Message:
'01 QC 4.7 4x4 38,700 miles. Light just came on tonight. Hope its nothing to serious. Any other info would be great.
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slow2dak
Dodge Dakota
JOIN HERE
2/20/2003
17:28:57
| RE: 4.7 mil light
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Message:
i have a 02 RC Sport 4.7 auto. have not had the mil for evap leak. there is a flash in the mds available for this. there is a tsb for ERRONEOUS Mil for evap leak P 0443 and P0445 if i remember correctly.
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kevster
Dodge Dakota
JOIN HERE
2/20/2003
21:07:05
| RE: 4.7 mil light
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Message:
I have a 2k Dak,with the 4.7 and truck has 40,000 miles, NO codes yet, never had any probs......I also have my other a 2002 Quad cab 4x4 with the 4.7, both have auto trans, 2002 has 18,000 miles, no codes..No problems yet whatsoever..
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Bryan Coffman
Dodge Dakota
JOIN HERE
2/20/2003
23:16:06
| RE: 4.7 mil light
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Message:
Took into shop today. Tech told me he thinks its the thermastat. He said he'd like to start there. Who knows
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UGADawgsDak
Dodge Dakota
JOIN HERE
2/21/2003
06:51:00
| RE: 4.7 mil light
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Message:
I have had my 2001 QC in 8 times already at 53,378 miles for code 0442. They have replaced everything from the hoses, to the gas cap, to the gas tank. Guess what...it's still happening. I think that I might just have to trade for a Hemi Ram or something.
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Graphite
*GenIII*
2/21/2003
06:59:26
| RE: 4.7 mil light
IP: Logged
Message:
UGADawgsDak, Tell your mechanic to check the throttlebody and to do the smoke test. That is a sure way to find a leak.
High velocity impact spatter
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chris
Dodge Dakota
JOIN HERE
3/29/2003
03:08:39
| RE: 4.7 mil light
IP: Logged
Message:
my mil light popped on tonight and i read the trouble code with my budddies scanner it came up as p0445 a gross evap leak detected, i know i need to call dadge and get them to check it out but i was wondering if any one had advice on what to do if anything before i sent it to them to screw with
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Bryan C.
Dodge Dakota
JOIN HERE
3/29/2003
09:55:33
| RE: 4.7 mil light
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Message:
Had by truck in for the MIL light being on. They changed the thermastat and everything is good now.
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jeremiah2360
Dodge Dakota
JOIN HERE
6/28/2003
10:12:54
|  RE: 4.7 mil light
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Message:
Like Bruce P the larger hose on my evap canister was loose. On closer inspection found it to be split about an inch, cut it back and reinstalled. This site saved me a trip to the dealership and the hassle of putting stock air-hat back on and removing thermostatic switch.(wouldn`t want to give them any excuses)
03 qc 4.7 auto 4x4 12k
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astra
Dodge Dakota
JOIN HERE
7/10/2003
19:06:21
| RE: 4.7 mil light
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Message:
I have the same codes on the 2001 5.9 Ram Engine. Can anyone tell me if this is the same issue?
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Matt
Dodge Dakota
JOIN HERE
8/11/2003
19:20:26
| RE: 4.7 mil light
IP: Logged
Message:
I had the MIL come on on my 2001 Q/C 4x4 with the 4.7 l V8
The dealership charged me 80 bucks to tell me there was an evaporative leak. Smoke test revealed a faulty leak detection pump.
I went to autozone and scanned the code and got p0455 (for free)
Can anyone tell me where the leak detection pump is, and where i might be able to get a replacement for less than the $200 the dealer wants to install it?
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