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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Buick Regal car and truck repair procedures including Buick engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 2003 Buick Regal automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 Buick Regal

  • 2003 Buick Regal GS 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:1
  • 2003 Buick Regal LS 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:K

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Buick Regal GS 3.8 V6 GAS

Lower

  • Drain cooling system into a suitable container.
  • Reposition hose clamp from water pump housing using hose clamp pliers J 38185 or equivalent.
  • Remove radiator outlet hose from water pump housing.
  • Remove lower radiator air deflector.
  • Reposition hose clamp from radiator using hose clamp pliers J 38185 or equivalent.
  • Remove radiator outlet hose from radiator and from vehicle.
  • Reverse procedu...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Buick Regal LS 3.8 V6 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Remove fuel injector sight shield.
  • Release clamp on heater inlet hose using hose clamp pliers J 38185 or equivalent.
  • Disconnect heater inlet hose from inlet pipe.
  • Release clamp on heater inlet hose using hose clamp pliers J 38185 or equivalent.
  • Disconnect heater inlet hose from heater core.
  • Remove hose from vehicle.
  • Reverse procedure to ...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Radiator, Replace
Vehicle: 2003 Buick Regal GS 3.8 V6 GAS

  • Drain engine coolant into suitable container.
  • Remove upper radiator seal.
  • Remove upper radiator support bar.
  • Disconnect and plug coolant overflow hose from radiator.
  • Disconnect upper and lower radiator hoses from radiator and position out of way.
  • Remove bolt from transmission oil cooler pipe clip at lower radiator tie bar.
  • Remove cooling fans.
  • Disconnect transmission fluid cooler lines from radiator using coupling tool No. J41623-B, or equivalent. Position lines aside.
  • Disconnect overflow hose from radiator.
  • The bolt retaining the condenser...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Radiator, Replace
Vehicle: 2003 Buick Regal LS 3.8 V6 GAS

  • Drain engine coolant into suitable container.
  • Remove upper radiator seal.
  • Remove upper radiator support bar.
  • Disconnect and plug coolant overflow hose from radiator.
  • Disconnect upper and lower radiator hoses from radiator and position out of way.
  • Remove bolt from transmission oil cooler pipe clip at lower radiator tie bar.
  • Remove cooling fans.
  • Disconnect transmission fluid cooler lines from radiator using coupling tool No. J41623-B, or equivalent. Position lines aside.
  • Disconnect overflow hose from radiator.
  • The bolt retaining the condenser...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Buick Regal GS 3.8 V6 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Remove fuel injector sight shield.
  • Release clamp on heater inlet hose using hose clamp pliers J 38185 or equivalent.
  • Disconnect heater inlet hose from inlet pipe.
  • Release clamp on heater inlet hose using hose clamp pliers J 38185 or equivalent.
  • Disconnect heater inlet hose from heater core.
  • Remove hose from vehicle.
  • Reverse procedure to ...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Buick Regal AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported 2003 Buick Regal cars and light trucks from 1990+

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Buick Regal LS 3.8 V6 GAS

Lower

  • Drain cooling system into a suitable container.
  • Reposition hose clamp from water pump housing using hose clamp pliers J 38185 or equivalent.
  • Remove radiator outlet hose from water pump housing.
  • Remove lower radiator air deflector.
  • Reposition hose clamp from radiator using hose clamp pliers J 38185 or equivalent.
  • Remove radiator outlet hose from radiator and from vehicle.
  • Reverse procedu...

CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

Shop online for auto body parts, engines, wheels, lights...

Click here to view more details about 1990 Buick Regal Grille Assembly1990 Buick Regal Grille Assembly, With billet grille insert; A high quality, direct fit OE replacement grille assembly..

Source: Auto Body Parts Store

$37.57

Click here to view more details about 1996 Buick Regal Splash Shield, Front, Passenger Side1996 Buick Regal Splash Shield, Front, Passenger Side, A high quality, direct fit OE replacement splash shield..

Source: Auto Body Parts Store

$8.13

Click here to view more details about 1997 Buick Regal 16" x 6.5" Alloy Wheel1997 Buick Regal 16" x 6.5" Alloy Wheel, Alloy Wheel; 16 X 6.5; 17 Spokes; 5 Lug; 115MM BP; Machined With Silver Vents, , .

Source: Wheels / Rims, Mirrors & Lights Store

$100.45

Click here to view more details1978 Buick Regal Sport V6, 3.8 L, 231 CID Rebuilt Engine, Even fire, without smog., Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,299.00

Click here to view more details1984 Buick Regal Used Wiper Motor Front, Without PULSE WIPER; 2 WIRE ARMATURE, Very Good.

Source: Used Auto Parts Store

$86.00

Click here to view more details2011 Buick Regal Used Brake Master Cylinder, 2.0, AUTO, FWD, Very Good.

Source: Used Auto Parts Store

$88.00
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