Question about 2004 GMC Sierra

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On my 2004 gmc Sierra dually it reads low oil pressure when I press the brakes. Once I release them the buzzer goes off

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  • 2 Answers

Flush the oil put a detergent in to the engine add oil flush again and change the sensor for the oil pressure

Posted on Dec 01, 2014

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6ya6ya
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Posted on Jan 02, 2017

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rockitman187
  • 2559 Answers

SOURCE: gmc sierra 2008 low tire pressure problem

You can follow this to reset it.
Ignition ON, initiate the TPM Learn Mode
using one of the following procedures:

  1. On vehicles equipped with keyless entry, simultaneously press the keyless entry transmitters lock and unlock buttons until a double horn chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.
  2. On vehicles not equipped with keyless entry, press and release the driver information center (DIC) INFO button until the TIRE LEARN message appears on the DIC display. Press and hold the SET/RESET button until a double horn chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.
  3. Increase/decrease the tire pressure for 8-10 seconds then wait for a horn chirp. The horn chirp may occur before or up to 30 seconds after the 8-10 second pressure increase/decrease time period has been reached. Once the horn chirp has sounded, the sensor information is learned and the turn signal in the next location to be learned will illuminate.
    After the horn chirp has sounded and the right front turn signal is illuminated, repeat step 2 for the remaining 3 sensors in the following order:
    3.1. Right front

    3.2. Right rear

    3.3. Left rear

    When the left rear sensor has been learned and a double horn chirp has sounded, the learn process is complete and the RCDLR exits the learn mode.
    Ignition OFF, adjust all tires to the recommended pressures

Posted on Jan 22, 2009

DAD5bbbbg
  • 111 Answers

SOURCE: 2004 GMC Sierra High Oil Pressure

if it is electrical oil pressure sensor I would start there. The best way to see if you have a major problem is to use a mechanical oil pressure tester. Take off the oil pressure sensor and put the mechanical tester on. The tester should come with a Gage. If it comes within your trucks oil pressure range than all is fine and replace the sending unit and see if that don't help your problem.If the tester runs high then the oil pump is bad or your cam-bearings could be the problem. But with cam-bearings you would usually get a low reading.

Posted on Mar 14, 2009

  • 59 Answers

SOURCE: low oil pressure 93 GMC P/U w/350 motor w/205,000 miles gauge

While engine is running, open the cover where you add oil to engine and see if you see a good flow of oil, if good flow, could be as easy as replacing oil sending sensor. got to realize that if poor maintenance history your engine may not be building enough pressure at iddle to move your hydraulic operated valves, only when you rev it up it will pump enough to run smooth. if running engine too long, you may cause more damage to other engine components such as crankshaft and cam shaft bearings. if you can spare a few bucks, have a good mechanic check your oil pressure with a mechanical gauge. another cheap option is to replace oil pump. last resort if you love your truck as much as we do,replace engine or rebuild it. At 205,000 this is a normal symptom, other than timing chain problems, most engines don't make it that far. hope this helps!

Posted on Mar 01, 2010

fixitriteman
  • 431 Answers

SOURCE: LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED

have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds

Posted on Mar 11, 2010

Testimonial: "thanks alot.truck is not making a rattling noise.we did check it with a manual gauge.it read about 10 at idol. press. gets better as you incr speed"

  • 394 Answers

SOURCE: oilpressure gauge indicates low to almost no oil pressure

You may want to hook up an external oil pressure gauge
to the engine to ease your mind. This would give you a regular number of the pressure. Compare it to the factory gauge in the dash. Those in dash gauges were not all that precise. If the engine is not having bearing noise I can see nothing to worry about.

Posted on Mar 16, 2010

Testimonial: "Thank you. Your suggestion was helpful in helping me focus on the solution rather than the problem."

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Hello Les, I suggest you install an auxiliary oil pressure gauge to measure the actual oil pressure. Did you inspect the oil pick up tube screen for debris that might restrict the oil from getting to the oil pump? Did you install an oil pump mounting gasket or o-ring if it requires one?

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I have a 2000 sierra 3500 dually dump truck and the brakes go to the floor. but have no leaks


If the brake pedal goes to the floor and there are no external leaks, then the master cylinder may need to be bled.

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2000 GMC Sierra 3500 4x4 standard cab 5.7 litre single rear wheels,Please tell me How do get the front rotors off? Any help would be much appreciated.


The brake calipers will need to come off which is the hardest part for most. Have a " C" Clamp with an 8 inch throat is needed so you can press the brake pads inward to release pressure from the rotor. Upon removing the caliper the saddle if so equipt has to be unbolted from the steering knuckle. Two bolts hold this saddle on. You may not have one depending on the design caliper this truck has. Once these parts are off the rotor will come off

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LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED


have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds

Mar 11, 2010 | GMC Sierra 1500 Cars & Trucks

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I just bought a 2002 GMC 1500HD Crew Cab with 223,000 miles. The truck looks and runs like brand new. They were all freeway miles. The problem is this. When it first starts the oil pressure gauge is in the...


Nope, normal on start up is 60 PSI and once warmed up drops to 45 psi. Have the oil pressure checked for a proper reading during start up's when the engine is cold. As for the lifters ticking, that may be a sign that the engine was ran with low oil pressure or no oil and the lifters are damaged, or low oil pressure and the lifters are starved of oil. Try not to drive it and have a proper oil pressure reading, low oil pressure will damage the engine by having the main crank bearing to spin which is a engine replacement. Good luck and keep me posted.

Feb 09, 2010 | 2002 GMC Sierra C/K1500

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What is oil sending unit on 2006 gmc sierra


if it shows low oil level its possible bad "level sensor "located on oil pan.if it shows low oil pressure possible oil "pressure sensor"

Sep 15, 2009 | 2006 GMC Sierra 1500 2WD

1 Answer

2004 GMC Sierra High Oil Pressure


if it is electrical oil pressure sensor I would start there. The best way to see if you have a major problem is to use a mechanical oil pressure tester. Take off the oil pressure sensor and put the mechanical tester on. The tester should come with a Gage. If it comes within your trucks oil pressure range than all is fine and replace the sending unit and see if that don't help your problem.If the tester runs high then the oil pump is bad or your cam-bearings could be the problem. But with cam-bearings you would usually get a low reading.

Mar 14, 2009 | 2004 GMC Sierra 1500 Crew Cab

1 Answer

Gmc sierra 2008 low tire pressure problem


You can follow this to reset it.
Ignition ON, initiate the TPM Learn Mode
using one of the following procedures:

  1. On vehicles equipped with keyless entry, simultaneously press the keyless entry transmitters lock and unlock buttons until a double horn chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.
  2. On vehicles not equipped with keyless entry, press and release the driver information center (DIC) INFO button until the TIRE LEARN message appears on the DIC display. Press and hold the SET/RESET button until a double horn chirp sounds indicating the Learn Mode has been enabled. The left front turn signal will also be illuminated.
  3. Increase/decrease the tire pressure for 8-10 seconds then wait for a horn chirp. The horn chirp may occur before or up to 30 seconds after the 8-10 second pressure increase/decrease time period has been reached. Once the horn chirp has sounded, the sensor information is learned and the turn signal in the next location to be learned will illuminate.
    After the horn chirp has sounded and the right front turn signal is illuminated, repeat step 2 for the remaining 3 sensors in the following order:
    3.1. Right front

    3.2. Right rear

    3.3. Left rear

    When the left rear sensor has been learned and a double horn chirp has sounded, the learn process is complete and the RCDLR exits the learn mode.
    Ignition OFF, adjust all tires to the recommended pressures

Jan 22, 2009 | 2000 GMC New Sierra 1500

2 Answers

2003 GMC Sierra


Is this after recent oil change.Sound like you have the wrong viscosity of oil.

Nov 24, 2008 | 2004 GMC Sierra 1500 Crew Cab

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