Question about 1998 GMC Sierra

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Over heating and low oil pressure 2004 gmc 3500 savanna

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  • stringbean69 Jan 11, 2009

    over heating and low oil pressure

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Change oil pump it only cost $100 most like thats the problem

Posted on Aug 19, 2008

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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


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

Nov 30, 2014 | 2004 GMC Sierra

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Fuel filter location


Try this link
It may be this same location as the one on this youtube
http://www.youtube.com/watch?v=lpf26Itrq3k

Jul 23, 2014 | GMC Savana Cars & Trucks

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Low presure oil


first thing check is the engine oil level.if oil level okay check oil pressure should be for the 4.2 engine oil pressure should be 12 psi @ 1200 rpm for the 5.3 oil pressure should be 18 psi @ 2000 rpm if oil pressure good problem in the oil pressure sending unit. if oil pressure is low problem faulty oil pump or worn crankshaft bearings if oil pressure low engine will have rod knock.make sure you are using correct oil viscosity if oil too thick you will have low oil pressure oil too thin you will loose oil pressure.

Nov 26, 2012 | 2004 GMC Envoy

1 Answer

My 2004 gmc envoy is giving me ans oil pressure low warning and then shutting off my engine


It needs to have the oil pressure manually tested with a mechanical pressure guage. If good oil pressure is found, you most likely have a bad sending unit.

Oct 02, 2012 | 2004 GMC Envoy

1 Answer

Where is the ac lowside port located on a 2005 gmc savanna van


The low side port of the 2005 GMC savanna Van is located on the low pressure side of the compressor.

This is found by locating the compressor driven by a belt that has a clutch that engages and disengages as the a/c cycles.

The low pressure piping is always in the larger diameter piping, and the high pressure side is always contained in the smaller diameter piping.

Therefore, follow the thick pipes from the compressor up to the accumulator, which looks like a large can of soup. On the accumulator receiver/drier is a port that connects to the tube that is connected to the can of r134a freon refrigerant.

Simply quick connect the tube to the low side port, which is located on the 'thick' tubing or on the accumulator and then fill until the low side pressure is 25 psi to 45 psi while the compressor is running.

When the car is off and the compressor is not running, the pressure should be 75 psi to 100 psi on a hot day.

Hopefully the system doesn't have a leak slow or fast in it.

Aug 17, 2010 | 2005 GMC Savana

1 Answer

I am changing the front brakes pads and on a 2004 3500 series gmc


Not really, some basic tools, metric sockets and wrenches, screw drivers and a 6" C clamp to compress the caliper piston.
The most important thing to remember is to make certain the caliper pins are clean and greased when you reassemble. If you are replacing components such as rotors or calipers, make sure you replace the parts in pairs. Make sure no grease or contaminants are on the rotors or brake pads.
Good luck.
You can go to www.autozone.com to get detailed instructions for replacing your pads.

Nov 25, 2009 | 2004 GMC Savana

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