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MIL light came on so I checked it with my Actron CP9575. I have 3 codes, 1st p0052 confirmed, 2nd, p0300 confirmed, 3rd p0052 pengding. I had the 1st two codes 5000 miles ago so I replaced the high bank 2 sensor 1 which is on the passenger side the sensor before you get to the converter. The code would not erace. A friend pulled the fuse to the main computer and the code went out. That was 5000 miles ago and now it's back on and the truck is running rough. 2004 Dodge Ram 1500 2x4 5.7 Hemi. Any possible solutions?

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  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Code #P0171 & code #P0174

The most common problem on a Ford with these codes is deteriorated PCV hoses. Check the hoses from the PCV valve to the intake manifold. Pay special attention to the rubber elbows. They often crack on the inside curve and the crack is hard to see.

Posted on May 22, 2008

  • 1 Answer

SOURCE: PO137, PO 138 codes

well on my car these are reffering to the sensors in the exhaust, the upstream sensor(before the cat) and the downstream sensor(after the cat) the downstream sensor can act up if it is lazy or sluggish, or due to a bad catalytic converter or a clogged one. however there are sensors on the exhaust manifold which are determined by driver side or passenger,my opinion is to get a scanner for about $100 to $150 and you can figure out many of these codes yourself.

Posted on Sep 19, 2008

  • 1 Answer

SOURCE: 04 Dodge Ram 1500 Hemi 2WD O2 Seneor

change up and down stream o2 senors

Posted on Dec 15, 2008

  • 5 Answers

SOURCE: Ford Windstar 1996 Trouble Codes P0171, P0141, P0161, and P0174

Bank one is toward the front of the vehicle. Sounds like the heated oxygen sensors have gone bad. The Oxygen Sensors are located in the exhaust pipe and require a special socket to remove and replace.

Posted on Jan 16, 2009

  • 80413 Answers

SOURCE: Replacing bank 1 sensor 2 and bank 2 sensor 1 oxygen sensors


Posted on Jun 24, 2009

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P1775 code in showing up on my 2008 jeep wrangler x. How do you fix that?

we can not answer what you can do or fix.
only how to diagnose, or is this just a please guess for me post?
got tools, got a real scan tool?
is this a 5 buck code reader that misses most codes.
or a real one (ask for good tools)
if a real tool, it will show all codes, and you must know them all
or go astray. P0841? present? too>?

42RLE box.::: one code only, my guess.

i have this car, (m/t) and full FSM, on it,
Ill decode this and tell you what page to read in the FSM
it shows what to do next and the tests to prove this out.
P= power train
P1 means factory code ( so dont read ford codes)
TCC means torque converter clutch. lock up device. failure.
that means transmission, (id didnt say its bad)
the transmission on your car is automatic, unlike my stick
it has a TCM brain, hidden in the PCM brain
but its real and there. for sure. inside.
and it shifts for you, this brain,. in DRIVE

here is the 1st page on this code. in fsm book.

The Solenoid Switch Valve, an internal, hydraulically operated valve, controls the direction of the transmission
fluid when the LR solenoid is energized. When the solenoid switch valve is in the downshifted position and the
LR solenoid is energized, fluid is directed to the LR element for 1st gear. When the solenoid switch valve is In
the up-shifted position (2nd, 3rd, and 4th gear) and the LR solenoid is energized, fluid is directed into the
Lockup Switch Valve which controls the Torque Converter Clutch. When shifting into 1st gear, a special
sequence is followed to insure solenoid switch valve movement into the downshifted position. The LR pressure
switch is monitored to confirm switch valve movement. If the solenoid switch valve movement is not confirmed
(i.e. no LR pressure when the LR solenoid is energized), 2nd gear is substituted for 1st. No 1st gear (2nd gear is
substituted). The transmission Torque converter FEMCC operation is inhibited. MIL on after 5 min. of
substituted operation.
Monitor Conditions
When Monitored:
Prior to a shift into 1st gear.
possible causes:

the book says have the dealer
do a full transmission check using there (unique) fancy tool..
seems to be good advice.

below is the interface tcm.<> box.
solenoid and read back switches.
if the trans is not bad, then this switch is bad (fibbing)
or the wires rusty there... re-seat them yet?


Jul 20, 2015 | Jeep Cars & Trucks

2 Answers

I have a 2004 dakota codes p0052 p0732 p0720 p0731 p0700. Bought non running and had a 3.7 installed got back and it jerks when taking off and won't shift out of 1st gear. Limp mode? Any ideas?

P0700 Transmission control system malfunction
P0720 output speed sensor circuit malfunction
P0731 gear ratio error in first gear
P0732 gear ratio error in second gear

May 24, 2015 | 2004 Dodge Dakota

1 Answer

Reset check engine light

On OBDII vehicles there's 2 ways to reset the MIL. A scan tool can clear the codes, but will also clear all of your monitors. If you have repaired the code, the computer will automatically turn the MIL off after 3 consecutive drive cycles the code monitor has passed. It could take a while as not all monitors are run every drive cycle. This is the best way to confirm a repair in my opinion.

Apr 07, 2013 | 2005 Toyota Tacoma

3 Answers

Engine light on obd-code P0052

that would mean that an O2 sensor is going bad or is bad,or the wiring.

Sep 05, 2012 | Dodge Ram 1500 Cars & Trucks

1 Answer

What is service engine light code 12 mean


Be advised that the MIL or CHECK ENGINE light can only perform a limited number of functions and it is a good idea to have the system checked with a scan tool to double check the circuit function.

  1. Within a period of 5 seconds, cycle the ignition key ON - OFF - ON - OFF - ON .
  2. Count the number of times the MIL (check engine lamp) on the instrument panel flashes on and off.

The number of flashes represents the trouble code. There is a short pause between the flashes representing the 1st and 2nd digits of the code. Longer pauses are used to separate individual 2-digit trouble codes.
An example of a flashed DTC is as follows:

Lamp flashes 4 times, pauses, then flashes 6 more times. This denotes a DTC number 46. Lamp flashes 5 times, pauses, then flashes 5 more times. This indicates a DTC number 55. DTC 55 will always be the last code to be displayed.

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Fig. Fig. 2: Diagnostic trouble code chart (1 of 2)-1995-97 engines

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Fig. Fig. 3: Diagnostic trouble code chart (2 of 2)-1995-97 2.0L engines

Jul 26, 2012 | 1995 Dodge Neon

1 Answer

P0052 code how do I fix the problem?

Hi there:

P0052 - Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1)
A P0052 DTC (diagnostic trouble code) refers to the O2 sensor (oxygen sensor) located on Bank 2 in front of the catalytic converter. There is also an oxygen sensor behind the converter which is Sensor #2. Bank 2 is the side of the engine that doesn't contain cylinder #1.

This O2 sensor #1 may also be refered to as an air/fuel ratio sensor since on some vehicles it is. The sensor detects the amount of oxygen in the exhaust gas compared to the outside air and then vehicle's computer adjusts the air/fuel ratio going into the engine. The sensor is less effective when the exhaust gas temperature is low, so it includes a heater which is activated to help get better readings from the O2 sensor. Essentially this P0052 code means that the resistance of the heater circuit is higher than normal. In some cases, that resistance level must be higher than 10 A to trigger the DTC code.

Note: this code is very similar in nature to P0031, P0032, and P0051

Most likely you'll not notice any symptoms other than the MIL (malfunction indicator lamp, a.k.a. the check engine light) will illuminate.

Causes: a P0052 DTC trouble code may be caused by one or more of the following:
A short in the heater circuit in the sensor
A failed O2 sensor heater
Wiring/connectors broken/frayed leading to sensor and/or relay
Failed PCM/ECM

Possible Solutions: To fix a P0052 DTC code, you'll need to do a proper diagnosis. To do that, you'll want to inspect the wiring and connectors leading to the sensor. Also if equipped with a heater relay and fuse, you'll want to check those as well. Use a digital volt ohm meter to:

check for 12 volts at the heater circuit feed (hint: unplug the sensor and check at the wiring connector to do this measurement)
check the ground circuit for continuity
measure the resistance of the heater circuit (done on the sensor itself)
measure the resistance and voltage of the wiring
Refer to a service manual for the correct specifications (volts, ohms) for your vehicle. On some Toyota vehicles this code is triggered when the resistance of the heater circuit is above 10 A.

With that said, a common fix for this DTC is to replace the air/fuel (O2 oxygen) sensor #2 on bank 1.

Please keep in mind that OEM (original equipment) replacement sensors are recommended (from the dealer). Aftermarket sensors can be less reliable and of poorer quality (not always, but more often). There's also a chance that replacement parts for the P0052 code may also fall under a federal emissions warranty (check with your dealer to see if it's covered).

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

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1 Answer

'98 Ranger, MIL and O/D light on. No codes.

Generic Code readers may not pull codes from the Transmission Control Module. They tend to just be OBD II Global readers (which means they can talk to the PCM and that's it). You probably have a transmission issue but need a better Scan Tool to retreive the codes.

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