| From | Message |
Tom
Dodge Dakota
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1/31/2003
11:19:33
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 Subject: Check Engine Light
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Message:
I have a 1999 Dakota Sport, 3.9 litre, 2 wheel drive. My check engine light will come on for about a week, sometimes as soon as I start it but mostly after it idles for about 60-90 seconds. Could a bad heater core cause this? Sometimes it sounds like water is "swooshing" around in the dash board! For whatever reason, it will go off for a couple of days but always returns. Any suggestions? Thanks.
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Jon
Dodge Dakota
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1/31/2003
11:37:04
|  RE: Check Engine Light
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Message:
The CEL is all emissions stuff, could be something like an o2 sensor thats getting lazy. If you hear water swooshing around in the dash it could be that you have air in the cooling system, check the level in your radiator. I suppose that if there was air in the cooling system the CEL might turn on with a code for the coolant temp sensor, but that's not very likely, probably just an emmisions component but it's worth having it looked at.
-Jon
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Tom
Dodge Dakota
JOIN HERE
1/31/2003
12:11:27
| RE: Check Engine Light
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Message:
Thanks Jon, I appreciate the info. Are there one or two o2 sensors and do you know if they are hard to change. Thanks again.
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flyboysdak
Dodge Dakota
JOIN HERE
2/01/2003
13:23:24
| RE: Check Engine Light
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Message:
i had the same problem.. my problem ended up costing me amost 150 bucks to tel me that i needed a new gas cap.
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Tom
Dodge Dakota
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2/01/2003
22:41:16
| RE: Check Engine Light
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Message:
How the heck did you determine that a new gas cap was needed? If I could get this cleared up for less than 10 bucks it would be great!
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flyboysdak
Dodge Dakota
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2/04/2003
15:59:54
| RE: Check Engine Light
IP: Logged
Message:
i took it in thinking it was something major and when they ran the trouble codes that is what came back..it sucked cost me 225 to pay for a new gas cap due to testing
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slopehead
Dodge Dakota
JOIN HERE
2/04/2003
16:28:23
| RE: Check Engine Light
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Message:
AUTOZONE!!!!!!!!!!
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Tom
Dodge Dakota
JOIN HERE
2/04/2003
20:33:32
| RE: Check Engine Light
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Message:
I can't believe this, but I changed gas caps and the check engine light has yet to come on! Thanks. Tom
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Tom
Dodge Dakota
JOIN HERE
2/07/2003
09:50:33
| RE: Check Engine Light
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Message:
Well, I may have spoken too soon. The dreaded "Check Engine Light" is on once again. Stayed on since yesterday when I first started the truck. Gotta be the O2 sensor I'm figuring. I wish the damn bulb would just burn out, its been on so many times and too long!
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Dillegm
GenII
2/07/2003
15:52:49
| RE: Check Engine Light
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Message:
Tom...not sure if it works with 99's but try this: turn your key on-off-on-off-on and leave it on. a code should be displayed on your cluster. On my 93, the light blinks in repetition such as: 1-2-4-3-5-5...once you know your trouble code you can fix the problem.
try this site out.
http://www.obdii.com/
Dillegm
93 3.9 being painted Black pearl at the moment
http://www.rennysniche.com/dillegm/index.htm
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Tom
Dodge Dakota
JOIN HERE
2/07/2003
16:43:21
| RE: Check Engine Light
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Message:
I will give it a shot. Thanks for your help.
Tom
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Paul
Dodge Dakota
JOIN HERE
4/02/2004
19:43:20
| RE: Check Engine Light
IP: Logged
Message:
light came on after a heavy rain, runs rough at idle and under light exceleration
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J and J Auto
GenII
4/02/2004
21:13:12
|  RE: Check Engine Light
IP: Logged
Message:
Check your local auto zone see if they will do a
free scan to pick up codes.
If not its worth the $50 to have it scaned it can
give you enough information to find and fix the
problem without the cost of replacing parts you
don't need to.
OBD 1 $130
OBD 2 $200
Buy one and do it your self you will never need
to take it to a dealer with your own scanner you
can do everything they can for diagnostics and
monitoring live sensor data while driving down
the roasd to pinpoint lazy sensors and intermitant
problems.
Diagnos like the big boys yourself
Monitor your o2, map, engine temp,tps,iat while
driving live data, its the only way to tune these
babies in, when all the sensors report good
data to the comp they run great, 1 bad sensor
can mess you all up.
Its a must have for anyone serious about tweaking
there motors, there are things you can moitor and
remove codes without a hard reset that removes all
your learned memory and starts from base tables.
Just a must have
Larry
J&J Auto
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uh Larry?
Dodge Dakota
JOIN HERE
4/03/2004
01:28:04
| RE: Check Engine Light
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Message:
CHECK A POST ON 2/04/2003 he said AUTOZONE WAY BACK THEN and JON most likely its not a 02 as the thing has not started to loose gas milage just run rough.tps or ???
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J Boy
Dodge Dakota
JOIN HERE
4/03/2004
10:12:39
|  RE: Check Engine Light
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Message:
I have a 02 dakota quad cab. I think since ive owned it in 10/02 the light has come on like 4 times. DOdge replaced the engine thermostat, then the theromoastat valve, then the gas cap twice. Its on again. Ill try Autozone but at this point since im past 44k im going to go the do it myself approach if i can find a book for my year 3.9. Also I tried a Carolla gas cap on my truck last night it actually had a complete thread unlike the Dodge partial thread on the cap. It would tighten down so im thinking is something else at this point becaue the light stayed on after running for 4-5 minutes. Lets just say the gas cap was down tight, trust me.
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Gary Manfredi
Dodge Dakota
JOIN HERE
4/04/2004
15:17:32
|  RE: Check Engine Light
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Message:
I got a code of P0138 O2 Sensor Circuit High Voltage Bank1 Sensor2,where is it located?
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?
Dodge Dakota
JOIN HERE
4/23/2004
14:15:22
| RE: Check Engine Light
IP: Logged
Message:
thump
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Justin
Dodge Dakota
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4/27/2004
09:01:49
| RE: Check Engine Light
IP: Logged
Message:
I have a big tip for everyone with this problem. I have had the same problem several times. I found the error code ad looked it up. It came to a small emissions leak. It is the gas cap. I have 44,000 on my 02 Dakota Quad Cab v6. Through some tinkering with the gas cap i noticed it wasnt tightening. This is becasue the black form that fits over the white screw portion gets weakened. By weakened I mean the plastic is cheap and flimsy. If you get this light start to squeeze your gas cap when tightening. This makes the plastic pins hold the white portion tighter until it is tight. After a few engine starts your light will turn off on its own. I think it was about 10 or so starts before my engine light cleared. Ive replaced my gas cap several times. It just that the plastic on the black portion is cheap.
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