What is fuel pressure for 2002 gmc denali 6.0 liter

SOURCE: 2005 GMC 3500 PU LOW OIL PRESSURE

You didn't say how many miles were on the truck or if there was any clunking down around the oil pan. If your pressure gauge is wandering, your oil pressure sending unit may be bad. If the sending unit is OK, it is time to drop the oil pan.

You may have to drop the tie rod or sway bar to get it out. Check the oil pick-up screen for blockage. If it is clear, check the oil pump for excess play. Replace if needed. If the screen is blocked, clean it by soaking in solvent, replace the oil pump, drop the rod and main bearing caps and examine the crank bearing surfaces. If they are in good condition, you can buy .001" undersized bearings. Lubricate generously and reassemble. Torque to the correct setting, then put the pan back on. This job can be done by one or two moderately skilled back yard mechanics if supplied with a case of beer.

If the bearing surfaces are scarred, take the crankshaft out and take it to a machine shop. You are going to have to take out the timing chain on the front end and unbolt the torque converter or flywheel from the back end of the crank. This job requires a good bit more skill, so unless you have an expert mechanic on speed dial, take it to a shop.

SOURCE: I have a 1999 GMC Yukon Denali, 350 V8. I want to

check in the area above the rim of the oil filter...they're typically located very close to the filter.
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SOURCE: fuel filter change 2002 sierra 1500 hd 6 liter

It is located on the drivers side frame rail right under door, it is small round silver canister with a single bolt thur a anchor strap with a metal line feed in the back and the front.put wrench on the housing nut and a wrench on the line comming in to filter losen the nut on the line side, holding the filter firm,break fitting loose, there will be a small amount of pressure, and gas will run out so don't be smoking. take out the single bolt to remove the filter, installing new filter look for an arrow or the words in, out that is the fuel flow,fuel goes IN & OUT to the motor.Re-install and check for LEAKS.

Duane Wong

• 6826 Answers
• Posted on Sep 23, 2010

SOURCE: How do you replace a GMC Yukon Denali fuel pump?

Fuel Pump
Removal & Installation
To Remove:

1. Remove the fuel tank.
2. Disconnect the fuel lines.
   
3. Using the J 45722 or equivalent, remove the sending unit lock ring.
   
   
   
   
   
   
   
   
   
   
   
4. Remove the sending unit and seal.
   
5. Discard the seal.
   CAUTION
   Drain the fuel from the fuel sender assembly
   into an approved container in order to reduce the risk of fire and personal
   injury. Never store the fuel in an open container.
   
   
6. Clean sealing surfaces.

1. Install a NEW seal.
   CAUTION
   The fuel pump strainer must be in a
   horizontal position when the sending unit is installed in the tank. When
   installing the sending unit, assure that the fuel pump strainer does not block
   full travel of the float arm.
   
   
2. Install the sending unit into the fuel tank.
   
3. Using J 45722 or equivalent, install the sending unit lock ring.
   
4. Connect the fuel lines to the sending unit.
   
5. Install the fuel tank.

SOURCE: My 2002 GMC Yukon Denali's fuel guage goes up

Most likely the rheostat on the float is bad. Unfortunately, this is part of the fuel pump and inside the fuel tank.