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2004 gmc sierra transmission lines replace

I am wondering if it is very difficult to replace all 3 transmission lines on a 2004 gmc sierra 2500HD. The aftermarket shop told us they have to take sown the front differential or at least take off the grill. From what I see it should not be that difficult. Can you help?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 366 Answers

SOURCE: I need to know how

check owners manual,or call a gm service dep.

Posted on Feb 23, 2009

  • 302 Answers

SOURCE: why wont my 2001 gmc sierra 2500hd go into 4th gear?

Check to make sure you don't have the TOW/HAUL switch on the end of the tranny stalk turned on

Posted on Jul 27, 2009

  • 198 Answers

SOURCE: 2004 gmc sierra rear differential

remove cover.take off back wheels and calipers (or drums).turn differential to where you see small bolt/pin (5/16) horizontally (same direction as axles)on right side of differential.remove bolt/pin.A large pin (about 5"long 3/4"diameter) should slide out differential with ease ( you may have to tap one side of the large pin).turn differential to completely remove large pin.turn differential so you can see in the view window.push each axles in (they'll go in about 1 1/2"each) You may hear one of the axle C-clips fall.If not use a small telescoping magnet to remove the C-clips from the axles through the differential window.pull each axle out about 10"so they are out of the diff.Now remove the cap bolts(4-5/8"bolts) and remove the caps(mark the caps so they go in excactly the way they came out.be careful the diff might fall out.If not you may have to use a long bar or 2x4 to wedge and pry the differential out. Have a basket/crate w/rags in it to catch the diff.TIP:If you are removing the ring gear from the diff, the bolts are left handed bolts meaning you have to turn them clockwise to loosen and counter clockwise to tighten ; )

Posted on Sep 15, 2009

Testimonial: "thank you helped ALOT perfect instructions "

jandjdist
  • 45 Answers

SOURCE: 2004 gmc sierra 2500hd diesel 6.6 no heat and I

Try flushing the cooling system. The heater core may be clogged.

Posted on Dec 18, 2009

  • 65 Answers

SOURCE: replacement of water pump on 2004 gmc sierra

Remove or disconnect the following:

Air outlet duct Coolant Inlet radiator hose from the water pump Upper fan shroud Cooling fan and clutch assembly Drive belt Radiator outlet hose from the coolant pump Surge tank hose Heater hose Water pump

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DO NOT use cooling system seal tabs (or similar compounds) unless otherwise instructed. The use of cooling system seal tabs (or similar compounds) may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly.

Install or connect the following:

Water pump. Install the water pump bolts. Tighten the water pump bolts first pass to 11 ft. lbs. (15 Nm); tighten the bolts final pass to 22 ft. lbs. (30 Nm). Water pump drive belt pulley and bolts (if applicable). Tighten the pulley bolts first pass to 89 inch lbs. (10 Nm); tighten the bolts final pass to 18 ft. lbs. (25 Nm). Surge tank hose Heater hose Outlet radiator hose to the coolant pump Drive belt Cooling fan and clutch assembly Upper fan shroud Inlet radiator hose to the water pump Air inlet duct Coolant

Posted on Jan 15, 2010

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