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Replace heater bypass valve on 2003 Chevy astro

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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merval1

  • 70 Answers

SOURCE: how do you change a fuel pump on 2003 chevy astro

on the engine compartment on the fuel rail there is a pressure port that is usually covered by colored plastic cover open it then turn the ignition switch listen for the sound of your fuel pump turning on momentarilly. if you cannot hear it while ignition is on insert small screw driver on the port to open the valve make sure you wrap rugs to control the flow of fuel if there is any. the fuel should around 40-50 psi so expect heavy fuel coming out at port if your pump is working. to change it you have to drop your fuel tank and replace your pump. this is usually left for professional due to fire hazard. any spark due to static electricity can set your fuel to flame up.

Posted on Nov 23, 2009

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Anonymous

  • 65 Answers

SOURCE: how toreplace fuel injector chevy astro 1999

Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve the fuel system pressure. Refer to the fuel system relief procedure in this section.
  3. Remove engine cover.
  4. Disconnect negative battery cable.
  5. Remove upper manifold assembly.
  6. Disconnect fuel meter body electrical connection and the fuel feed and return hoses from the engine fuel pipes.
  7. Remove poppet nozzle out of the casting socket by squeezing the nozzle locking tabs together.
  8. Remove fuel meter body by releasing the locktabs.
    NOTE Each injector is calibrated. When replacing the fuel injectors, be sure to replace it with the correct injector.
  9. Remove lower hold-down plate and nuts.
  10. While pulling the poppet nozzle tube downward, push with a small prytool down between the injector terminals and remove the injectors.

    0996b43f8022cb96.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Exploded view of the fuel meter assembly, including the injectors

To install:
  1. Lubricate the new injector O-ring seats with engine oil.
  2. Install o-rings on the injector.
  3. Install fuel injector into the fuel meter body injector socket.
  4. Install lower hold-down plate and nuts. Torque the nuts to 27 inch lbs. (3 Nm).
  5. Install fuel meter body assembly into the intake manifold. Torque the fuel meter bracket retainer bolts to 88 inch. lbs. (10 Nm).
    CAUTION To reduce the risk of fire or injury ensure that the poppet nozzles are properly seated and locked in their casting sockets.
  6. Install fuel meter body into the bracket and lock all the tabs in place.
  7. Install poppet nozzles into the casting sockets.
  8. Engage electrical connections.
  9. Install new o-ring seals on the fuel return and feed hoses.
  10. Connect fuel feed and return hoses and tighten the fuel pipe nuts to 22 ft. lbs. (30 Nm).
  11. Connect negative battery cable.
  12. Turn the ignition ON for 2 seconds and then turn it OFF for 10 seconds. Again turn the ignition ON and check for leaks.
  13. Install the engine cover.

Posted on Jan 20, 2010

Anonymous

  • 5 Answers

SOURCE: Where is the egr valve located on a 2003 chevy 4.3

The EGR Valve is located on the front of the Engine under the frest air tube. It is at a 45' angle. When checking look for lodged carbon chunks. I recommend using a gesket with a screen built in. It is located infront of the Thermostat housing.

Posted on Mar 14, 2010

duane_wong

Duane Wong

  • 6826 Answers

SOURCE: how to replace a heater core in a 2002 chevy astro

Heater Core Removal & Installation To Remove:

  1. Drain the engine coolant.
  2. Release and reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Release and reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.
To Install:
  1. Installation is the reverse of removal.
  2. Refill the cooling system.
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Posted on Aug 12, 2010

jturcotte

Jeffrey Turcotte

  • 8981 Answers

SOURCE: heater/acblower fan doesn't work on

Hi, check fuse 12 first. If it is good, you will need to replace the blower resistor. The high speed relay is built into the resistor. The resistor is next to the blower motor and looks like the picture below. There is a connector in the resistor and the 2-wire connector coming out of the resistor attaches to the blower. The blower is usually under the dash above the passenger's feet. You may have to remove a kick panel to see the motor and resistor. Please let us know if you have any questions, and thanks for using FixYa.

jturcotte_285.jpgjturcotte_286.jpg

Posted on Feb 19, 2011

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How to install a heater core on a 2000 chevy astro


Hello,
Here is a link that will tell you whats involved with changing the heater core

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I hope this helps.

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  1. Drain the engine coolant.
  2. Reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly. This is located underneath the dash on the passenger side.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.

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I just read an answer post you had made in response to a question about a 2003 Chevy Astro van vacuum line keeping the vents from switching from defrost to floor, to dash vents, etc., you mentioned...


I didn't initially answer your question, or even read it but I know what you are talking about. The source vacuum to the HVAC system inside the van. It attaches to a vacuum port on the left side of the engine just above valve cover attached to a bracket. They are very brittle plastic and break easily. I found it better to replace the vacuum line with small rubber line, such as washer fluid hose. Its easier to route and can be installed without bending plastic. Feed it from the left side vacuum "T" above the left valve cover, over to the heater valve on the right side in heater hose split. Its the source vacuum to inside, and if lost it defaults to the defrost mode and won't change modes.

Jan 29, 2011 | Chevrolet Astro Cars & Trucks

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I have a 2003 chevy astro awd van. The rear defroster as well as the high speed on the front heater stopped working. I have checked the fuses with a tester and they are still good. Is there an inline...


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Where is the egr valve located on a 2003 chevy 4.3 astro van? I think it not funtioning properly


The EGR Valve is located on the front of the Engine under the frest air tube. It is at a 45' angle. When checking look for lodged carbon chunks. I recommend using a gesket with a screen built in. It is located infront of the Thermostat housing.

Mar 08, 2010 | 2003 Chevrolet Astro

1 Answer

How do you change a fuel pump on 2003 chevy astro


on the engine compartment on the fuel rail there is a pressure port that is usually covered by colored plastic cover open it then turn the ignition switch listen for the sound of your fuel pump turning on momentarilly. if you cannot hear it while ignition is on insert small screw driver on the port to open the valve make sure you wrap rugs to control the flow of fuel if there is any. the fuel should around 40-50 psi so expect heavy fuel coming out at port if your pump is working. to change it you have to drop your fuel tank and replace your pump. this is usually left for professional due to fire hazard. any spark due to static electricity can set your fuel to flame up.

Nov 23, 2009 | 2003 Chevrolet Astro

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