2004 Ram 2500 5.7 w/ Engine Light On
#2971414
10/06/21 04:41 PM
10/06/21 04:41 PM
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Joined: Jan 2006
Posts: 2,385 White Plains, NY
VCODE
OP
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OP
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Joined: Jan 2006
Posts: 2,385
White Plains, NY
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I have been trying to fix this problem for awhile now. 2004 Ram 2500 4x4 with a 5.7 Hemi. The Engine light is always on. Before I did anything I fixed the exhaust leak which had the manifold bolts that were broken. That did not help, the light stayed on. I then had it scanned, I don't have a scanner. Ok it said O2 left bank / upstream. I replace both upstream sensors the light goes out for about ten minutes then back on. It is on for good again. I had replaced all sensors about 5 years ago also. What to do? Bob
Last edited by VCODE; 10/06/21 04:42 PM.
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17
(Robert what is a 440 Six-Pack)
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: VCODE]
#2971446
10/06/21 06:13 PM
10/06/21 06:13 PM
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Joined: Dec 2009
Posts: 20,647 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
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Without the exact code any answer would only be a guess.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: Guitar Jones]
#2971451
10/06/21 06:26 PM
10/06/21 06:26 PM
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Joined: Jan 2006
Posts: 2,385 White Plains, NY
VCODE
OP
top fuel
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OP
top fuel
Joined: Jan 2006
Posts: 2,385
White Plains, NY
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Without the exact code any answer would only be a guess. I had it scanned a few times, every time it said O2 sensor. I realize that it would by a guess but before I pay to have scanned again I am sure it will say O2 Sensor, then what. Thanks Bob
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17
(Robert what is a 440 Six-Pack)
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: trw1982]
#2971510
10/06/21 08:44 PM
10/06/21 08:44 PM
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Joined: Dec 2014
Posts: 5,899 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 5,899
ohio
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And get the number. The shorthand version The counter guy gives is worthless.
You need to start with the actual code number. I can think of at least a dozen oxygen sensor related numbers that have different diagnostic processes.
Angry white pureblood male
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: trw1982]
#2971515
10/06/21 08:52 PM
10/06/21 08:52 PM
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Joined: Jan 2006
Posts: 2,385 White Plains, NY
VCODE
OP
top fuel
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OP
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Joined: Jan 2006
Posts: 2,385
White Plains, NY
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[quote=trw1982]az scans for free. most of the time when people are told what the code is, they only hear a few words that is said to them. like bank 1 sensor 1 lean. does that mean that the o2 is bad? maybe/maybe not. the code gives a general area of concern or a symptom. it requires a test to determine what is actually wrong with that system. billions of dollars are spent each year on parts that people throw at a cel because they don't want to pay for diagnosis. most of the time the part has little/nothing to do with the actual cause of the cel. pay for diagnosis performed by a qualified ase/respected mechanic. [/quote
I received the info from a Dodge tech. So now that I changed the sensors I will am aware that I need to look into more of a problem. Thanks to all I was just trying to think outside the box with all of you help. Bob
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17
(Robert what is a 440 Six-Pack)
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: ruderunner]
#2971625
10/07/21 09:03 AM
10/07/21 09:03 AM
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Joined: Dec 2009
Posts: 20,647 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
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And get the number. The shorthand version The counter guy gives is worthless.
You need to start with the actual code number. I can think of at least a dozen oxygen sensor related numbers that have different diagnostic processes. This^^^. It could be rich, lean, slow to change, heater circuit, etc. The code didn't just say O2 sensor, it said something about that sensor as well.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: Guitar Jones]
#2971671
10/07/21 12:07 PM
10/07/21 12:07 PM
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Joined: Jan 2006
Posts: 2,385 White Plains, NY
VCODE
OP
top fuel
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OP
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Joined: Jan 2006
Posts: 2,385
White Plains, NY
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I checked all the connections and wires, they look good. The next thing to do is go back to my friend at the Chrysler / Dodge / Jeep dealer and check it out again on the scanner to find out more info. Thanks Bob
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17
(Robert what is a 440 Six-Pack)
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Re: 2004 Ram 2500 5.7 w/ Engine Light On
[Re: VCODE]
#2972673
10/10/21 12:50 PM
10/10/21 12:50 PM
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Joined: Jan 2011
Posts: 15,905 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 15,905
Central Florida
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I'm surprised it was not corroded connections at sensor as poorboy suggested. Hope you solve this soon.
Facts are stubborn things.
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