Question about 1985 Chevrolet Chevy

2 Answers

Did chevy make a single line fuel pump for a small block

My truck was a six the fuel tank has a vent line and a feed line on the sender the problem I have now it the pump has two lines can i put an older fuel pump on there? someone said it fills the bowl up and fowls

Posted by on

  • snotme84 Feb 07, 2009

    thank you much but the vent line runs from the top of the tank to the charcol can at the front of the truck.. can i just plug into that.. you say it's a return. thats not what it shows it the chiltons man. i own.. I just wanted to know hook up? this is the first smallblock i ever had i'm a 250 man. i've owned three and they were all 3 speed on the tree.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 4 Answers

Yes you can. buy one for a older year chevy

Posted on Feb 06, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 6,982 Answers

Older chev mechanical pumps had a single feed line. Newer ones had a feed line and a return. The steel lines on the sending unit are feed and return. If there was a vent line it would be a seperate line going to the top of the tank all by itself. If everything is hooked up correctly you should have about 7lbs pressure at the feed line.The needle valve in the carb will not allow leak-back if it is working correctly. If you have a Qjet carb, the bottom bowl plugs sometimes leak... that is a different problem not caused by supply.

Posted on Feb 06, 2009

  • Richard Scordino Feb 07, 2009

    OK I misunderstood... if the fuel sender has two lines, one would be a return line If there is a stand alone line to the top of the tank, that is a vent line and yes it goes to the evap system. You can leave that one connected, otherwise if blocked off, you may develop vacuum inside the tank as fuel is consumed. You can use the later fuel pump with the return port... just block off the return (remember to check line pressure at the carb though.)

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What are the steps to replace the fuel pump on a chevy trailblazer 2002


This is what it looks like and it is located in the gas tank:


c17hydro_197.gif
First, you'll need to use up as much fuel as possibly, if not, you'll have to drain the tank. Next:

  1. Drain the fuel tank.
  2. Support the fuel tank.
    1. Remove or disconnect the following:
    2. Negative battery cable
    • Filler neck from the tank
    • Shield from tank and tank straps
    • Fuel lines and vapor hose from pump
    • Electrical connection from fuel pump
    • Fuel tank
    • Fuel pump/sending unit assembly by turning the locking ring (located on top of the fuel tank) counterclockwise using a spanner wrench
    • Fuel pump from the fuel lever sending device
  • NOTE
    The fuel pump strainer must be in a horizontal position when the fuel sender is installed in the tank. When installing the sender assembly, make sure that the fuel pump strainer does not block full travel of the float arm.

    To install:

    1. Install or connect the following:
      • Fuel pump in tank with new seal around opening

      NOTE

      The fuel pump strainer must be in a horizontal position when the fuel sender is installed in the tank. When installing the sender assembly, make sure that the fuel pump strainer does not block full travel of the float arm.

      • Tank and connect fuel lines and vapor hose
      • Tank to the frame. Torque the fasteners to 33 ft. lbs. (45 Nm).
      • Shield
      • Fuel filler neck and clamp
      • Negative battery cable
    2. Refill the tank.
    3. Run the engine and check for leaks.
    // // 0) preLoad.src = ctl00_cphLeft_chRepairTreeNav_tvTOC_ImageArray[i]; } ctl00_cphLeft_chRepairTreeNav_tvTOC_Data.lastIndex = 33; ctl00_cphLeft_chRepairTreeNav_tvTOC_Data.populateLog = theForm.elements['ctl00_cphLeft_chRepairTreeNav_tvTOC_PopulateLog']; ctl00_cphLeft_chRepairTreeNav_tvTOC_Data.treeViewID = 'ctl00$cphLeft$chRepairTreeNav$tvTOC'; ctl00_cphLeft_chRepairTreeNav_tvTOC_Data.name = 'ctl00_cphLeft_chRepairTreeNav_tvTOC_Data'; //]]>

    Jul 08, 2011 | 2002 Chevrolet TrailBlazer

    2 Answers

    How do i drop the fuel tank to replace my fuel pump on my 2006 chevy trailblazer LS. There are 3 lines that I don't know what they are used for after you drop the tank 4 or 5 inches.


    their are two fuel line at the front of the tank one is the fuel feed and the other is the return line! Now the ones at the back of the tank are for emission you don't want to break or damage those make sure you disconnect all of those line and the is a red connector also at the rear of the top of the tank make sure you disconnect that. And just make sure careful when remove fuel pump it has a tight fit coming out also when your done make sure all your hoses and lines are reconnected and the red ont too! GOOD LUCK !

    May 23, 2011 | 2006 Chevrolet Trailblazer

    1 Answer

    I recently purchased this 1999 Chevy Blazer and it wont pass inspection because the OBD2 Diagnostic trouble code states it's problem is, code P0440-Evaporative Emission System. The guy said it looks like...


    The evaporative leak detection diagnostic strategy is based on applying a vacuum to the EVAP system and monitoring the vacuum decay rate. The VCM monitors the vacuum level via the fuel tank pressure sensor input. At an appropriate time, the EVAP purge solenoid and the EVAP vent solenoid turn ON, allowing the engine vacuum to draw a small vacuum on the entire evaporative emission system. If a sufficient vacuum level cannot be achieved, a large leak or an EVAP system malfunction is indicated.

    The following conditions can cause this problem:
    * A disconnected or malfunctioning fuel tank pressure sensor
    * A missing, malfunctioning, improperly installed, or loose fuel cap
    * A disconnected, damaged, pinched, or blocked EVAP purge line
    * A disconnected or damaged EVAP vent hose
    * A disconnected, damaged, pinched, or blocked fuel tank vapor line
    * A disconnected or malfunctioning EVAP purge solenoid
    * A disconnected or malfunctioning EVAP vent solenoid
    * An open ignition feed circuit to the EVAP vent or purge solenoid
    * A damaged EVAP canister
    * A leaking fuel sender assembly O-ring
    * A leaking fuel tank or fuel filler neck

    Any of the above conditions can set a DTC P0440.

    Mar 08, 2011 | 1999 Chevrolet Blazer

    2 Answers

    Removal of gas tank


    Fuel Tank Assembly Removal & Installation Single Tank To Remove:
    1. Before servicing the vehicle refer to the precautions at the beginning of this section
    2. Relieve fuel system pressure (See: Fuel System Relieving)
    3. Disconnect the negative battery cable
    4. Raise and support the vehicle
    5. Drain the fuel tank in an approved container
    6. Remove or disconnect the following:
      • evaporative emission (EVAP) canister Disconnect fuel lines for single tank gm_trk_sub15_fuel_line_rem_singl_tnk.gif

      • Chassis fuel lines (B) at the fuel tank (A)
        1. Cap the fuel and EVAP lines to prevent possible fuel system contamination
        Disconnect EVAP vent line gm_trk_sub15_evap_vent_line_rem.gif

      • EVAP vent line at the fuel tank clip (E) Disconnect vent hose and filler hose gm_trk_sub15_vent_filler_hoses.gif

      • Vent hose and filler hose clamp (D, B)
      • Vent hose and filler hose from the line
      Fuel tank removal gm_trk_sub15_fuel_tank_rem.gif

    7. With the aid of an assistant or a suitable jack support the fuel tank
    8. Remove or disconnect the following:
      • Fuel tank strap attaching bolts
      • Fuel tank straps
    9. Carefully lower the rear of the fuel tank slightly
    10. Remove or disconnect the following:
      • Fuel sender cover Fuel tank connections gm_trk_sub15_fuel_tank_conn.gif

      • Fuel sender and the fuel pressure sensor electrical connectors
      • Fuel tank
    11. Place the fuel tank in a suitable work area Fuel lines at the tank gm_trk_sub15_fuel_lines_at_tank.gif

    12. Remove or disconnect the following:
      • Fuel feed and return lines (C) from the fuel sender and the retaining clips
      • Fuel pump assembly from the fuel tank
      • EVAP line from the fuel tank roll over valves (B, D) and the retaining clips (A)
      • Fuel fill hose and the vent hose from the fuel tank
      • Fuel tank
    To Install:
    1. Install or connect the following:
      • EVAP line to the fuel tank roll over valves and the retaining clips
      • Fuel pump assembly to the fuel tank
      • Fuel feed and return lines to the fuel sender and the retaining clips
      • Fuel fill hose and the vent hose to the fuel tank; torque hose clamps,
        1. Torque to: 22 lb-in. (2.5 Nm)
    2. With the aid of an assistant or a suitable jack support and partially raise the fuel tank front end first
    3. Install or connect the following:
      • Fuel sender and the fuel pressure sensor electrical connectors
      • Fuel sender cover
    4. Fully raise the fuel tank
    5. Install or connect the following:
      • Fuel tank straps
      • Install the fuel tank strap attaching bolts;
        1. Torque to 30 lb-ft. (40 Nm)
      • Fuel fill hose and the vent hose to the lines;
        1. Torque hose clamp to 22 lb-in. (2.5 Nm)
    6. Torque the vent hose clamp,
      • Torque to: 22 lb-in. (2.5 Nm)
    7. Connect the EVAP vent line to the fuel tank clip
    8. Remove the caps from the fuel and EVAP lines
    9. Install or connect the following:
      • chassis fuel lines at the fuel tank
      • EVAP canister
    10. Lower the vehicle to the ground
    11. Fill the fuel tank with clean fuel
    12. Install the fuel filler cap
    13. Connect the negative battery cable
    14. Use the following procedure to inspect for leaks:
      • Turn the ignition on for two seconds
      • Turn the ignition off for 10 seconds
      • Turn the ignition on
      • Inspect for fuel leaks
    15. Install the engine sight shield
    16. Road test the vehicle to check performance

    Feb 12, 2011 | 2000 GMC Sierra

    1 Answer

    I need to change the fuel pump on a1995 chevy camaro z28


    The fuel pump is part of the fuel sender assembly located inside the fuel tank.
    1. Release the fuel system pressure and disconnect the negative battery cable.
    2. Drain the fuel tank, then raise and safely support the vehicle.
    3. Remove the fuel tank from the vehicle.
    4. Clean the area surrounding the sender assembly to prevent contamination of the fuel system.
    5. To remove the fuel sender from the tank, remove the fuel sender assembly nuts and retaining ring. Carefully remove the sending unit from the fuel tank. Discard the O-rings.
    6. If necessary, separate the fuel pump from the sending unit assembly.
    To install:
    1. If removed, install the fuel pump to the sending unit. If the strainer was removed, it must be replaced with a new one.
    2. Inspect and clean the O-ring mating surfaces.
    3. Install a new O-ring in the groove around the tank opening. If applicable, install a new O-ring on the fuel sender feed tube.
    4. Install the fuel sender assembly as follows:
      1. The fuel pump strainer must be in a horizontal position, and when installed, must not block the travel of the float arm. Gently fold the strainer over itself and slowly position the sending assembly in the tank so the strainer is not damaged or trapped by the sump walls.

    5. Install the retaining ring and nuts, then tighten the nuts to 63 inch lbs. (7 Nm).
    6. Install the fuel tank assembly.
    7. Lower the vehicle.
    8. Fill the fuel tank, tighten the fuel filler cap and connect the negative battery cable.
    9. Turn the ignition switch to the ON position for 2 seconds, OFF for 10 seconds, then back to the ON position. Check for fuel leaks.


    Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

    Sep 08, 2010 | 1995 Chevrolet Camaro

    1 Answer

    Where do I find the fuel pressure regulator and how to change it on a 2001 hyundai xg300


    The fuel pressure regulator is built in to the fuel pump

    f89c7c1.gif
    Fuel tank and fuel pump assembly—XG 300

    1. Before servicing the vehicle, refer to the Precautions section.
    2. Relieve the fuel system pressure.
    3. Drain the fuel tank.
    4. Remove or disconnect the following:
      • Negative battery cable
      • Fuel supply, return and vapor lines
      • Fuel fill and vent hoses
      • Fuel pump module connector
      • Fuel level sender connector
      • Fuel tank straps
      • Fuel tank
      • Fuel pump module
    To install:
    1. Install or connect the following:
      • Fuel pump module and torque the mounting bolts to 12–24 inch lbs. (1–3 Nm)
      • Fuel tank
      • Fuel tank straps
      • Fuel level sender connector
      • Fuel pump module connector
      • Fuel fill and vent hoses
      • Fuel supply, return and vapor lines
      • Negative battery cable
    2. Fill the tank with fuel and check for proper fuel pump operation.

    Jan 10, 2010 | 2001 Hyundai XG300

    1 Answer

    How to replace fuel pump on chevy malibu 2000


    First you should check your trunk. some newer chevy's have an access pannel uner the trunk liner inside the trunk. you remove the liner, remove the bolts and panel, and the pump is right there. it may take some effort to get it wiggled through, but trust me, it will fit. you must remove the fuel lines and wire harness first, then remove the lock ring completely before attempting to pull the pump through the access hole. if that fails then you need to drop you fuel tank to access the pump. there are instructions for removal and installation of the tank below.

    REMOVAL & INSTALLATION
    1. Disconnect the negative battery cable.
    2. Drain the fuel tank, using a hand-operated pump device to drain as much fuel through the filler tube as possible.



    0900c1528026905d.jpg Fig. View of fuel tank mounting


    0900c1528026905e.jpg Fig. The fuel filler pipe is attached to the body with a bracket and retaining bolt


    0900c1528026905f.jpg Fig. The fuel filler pipe is attach to the tank by a hose clamp
    1. Raise and safely support the vehicle.
    2. Unfasten the muffler hanger bolts.
    3. Remove the rubber exhaust hangers, then allow the exhaust system to rest on the rear axle.
    4. Disconnect the hoses from the fuel tank sender. Grasp the filter and one nylon fuel connection line fitting. Twist the quick-connect fitting 1 / 4 turn in each direction to loosen any dirt within the fitting. Repeat for the other fitting. Using compressed air, blow out the dirt from the quick-connect fittings at the end of the fuel filter.
    5. Detach the quick-connect fittings by pulling the release tabs back on the fuel line quick connector and pulling apart.
    6. Disconnect the hoses at the tank from the filler, vent and vapor pipes.
    7. With the help of an assistant, support the fuel tank, then disconnect the two tank retaining straps and carefully lower the tank.
    8. Detach the fuel sender electrical connector.
    9. Unplug the fuel pressure sensor connector.
    10. Remove the fuel tank from the vehicle.

    To install:
    1. If the tank is being replaced, perform the following:
      1. Remove the sound insulators.
      2. Remove the modular fuel pump/sender assembly, as outlined earlier in this section.
      3. Inspect all connectors for dirt and burrs. Clean or replace, as required. Inspect the fuel line O-rings for cuts, nicks, swelling and/or distortion and replace as necessary.
      4. Install the fuel sender assembly to the new tank, as outlined earlier in this section.
      5. Install the sound insulators.

    2. With the help of an assistant, raise the fuel tank to the vehicle and attach the fuel sender connector and, if equipped, the fuel pressure sensor connector.
    3. Raise the fuel tank into position then fasten the retaining straps. Tighten the retaining bolts to 26 ft. lbs. (35 Nm).
    4. Connect the hoses to the filler, vent and vapor pipes.
    5. Attach the nylon fuel feed and return connecting line quick-connect fittings to the fuel sender, as follows:
      1. Apply a few drops of clean engine oil to the male connector tube ends.
      2. Push the connectors together to cause the retaining tabs/fingers to snap into place.
      3. Once installed, pull on both ends of each connection to be sure they are secure.

    6. Install the rubber exhaust hangers.
    7. Install the muffler hanger bolts, then tighten to 11 ft. lbs. (15 Nm).
    8. Attach the fuel tank sender electrical connector.
    9. Carefully lower the vehicle.
    10. Refill the fuel tank, then connect the negative battery cable.
    11. Turn the ignition to the ON position for two seconds, then turn it to the OFF position for ten seconds. Turn again to the ON position and check for fuel leaks.

    Nov 04, 2009 | 2000 Chevrolet Malibu

    2 Answers

    I need to remove the fuel pump from my 99 chevy blazer , is there an access panel or does the fuel tank have to dropped?


    1. Properly relieve the fuel system pressure.
    2. Drain the fuel tank.
    3. Support the fuel tank.
    1. Remove or disconnect the following:
    2. Negative battery cable
    • Filler neck from the tank
    • Shield from tank and tank straps
    • Fuel lines and vapor hose from pump
    • Electrical connection from fuel pump
    • Fuel tank
    • Fuel pump/sending unit assembly by turning the locking ring (located on top of the fuel tank) counterclockwise using a spanner wrench
    • Fuel pump from the fuel lever sending device
  • To install:
    Install or connect the following:
    • Fuel pump in tank with new seal around opening

    NOTE The fuel pump strainer must be in a horizontal position when the fuel sender is installed in the tank. When installing the sender assembly, make sure that the fuel pump strainer does not block full travel of the float arm.


    • Tank and connect fuel lines and vapor hose
    • Tank to the frame. Torque the fasteners to 33 ft. lbs. (45 Nm).
    • Shield
    • Fuel filler neck and clamp
    • Negative battery cable
    1. Refill the tank.
    2. Run the engine and check for leaks.
    6207c87.gif
    View of the in-tank fuel pump assembly

    Oct 13, 2009 | 1999 Chevrolet Blazer

    2 Answers

    How to change fuel pump 1990 cadillac seville


    The fuel pump and sending unit is located in the tank. I hope your tank is empty, if not you will need to siphon it out. It is dangerous with the gasoline, and remember the fumes burn, not gas. You start by removing the filler hose, then loosen straps, detach sending unit wire and fuel line, then lower tank. Then unscrew the sending unit/pump and replace. reinstall.

    Jul 05, 2009 | 1990 Cadillac SeVille

    1 Answer

    Can you tell me how to change fuel pump on a 1990 chevy lumina


    http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152801dbaf3

    when you drop the tank by following these directions you will have access to the pump

    1989-94 Vehicles
    See Figures 1 and 2
    1. Disconnect the negative battery cable.
    2. Properly relieve the fuel system pressure, as outlined earlier in this section.
    3. Raise and safely support the vehicle.
    CAUTION Observe all applicable safety precautions when working around gasoline. Do not allow fuel spray or fuel vapors to come in contact with a spark or open flame. Keep a dry chemical (Class B) fire extinguisher near the work area. Never drain or store fuel in an open container due to the possibility of fire or explosion.
    1. Use a suitable hand operated pump device to drain the fuel through the filler tube into an approved container.
    Before disconnecting any fuel lines from the fuel tank, thoroughly clean around all hose connections.
    1. Disconnect the fuel filler vent hose from the fuel tank.
    2. Detach the fuel filler hose from the fuel filler inlet tube on the fuel tank. Position the hose out of the way.
    3. Disconnect the vapor hose from the front of the fuel tank.
    4. Detach the fuel return pipe and position the hose out of the way.
    5. Disconnect the two rear rubber exhaust hangers from the rear of the exhaust system and allow the exhaust system to hang down slightly.
    6. Unfasten the exhaust shield mounting bolts, then remove the exhaust shield.
    7. Support the fuel tank with a suitable jack.
    8. Remove the two bolts securing the fuel tank straps, then swing the straps out of the way.
    9. Lower the fuel tank enough to disconnect the vapor hose from the fuel sender assembly and the vapor hose from the vapor pipe at the rear of the fuel tank.
    10. Detach the electrical connector from the fuel sender assembly and remove the two retaining clips.
    11. Remove the tank from the vehicle, slowly to ensure all connections and hoses have been disconnected.
    To install:
    1. Clean all parts well. Inspect the tank for dents, rust or other damage. On high-mileage vehicles, it may be good practice to remove the fuel pump module and replace the flexible strainer on the fuel pump.
    2. Position the fuel tank under the vehicle and raise the tank with a suitable jack.
    3. Connect the vapor hose to the fuel tank at the vapor pipe at the rear of the tank and connect the vapor hose to the sender assembly.
    4. Attach the electrical connector to the fuel sender assembly.
    5. Connect the fuel feed and return lines to the sender assembly.
    6. Raise the tank into position into the vehicle and swing the mounting straps under the tank.
    7. Install the front fuel tank strap mounting bolts and tighten to 35 ft. lbs. (47 Nm).
    8. Remove the jack.
    9. Connect the fuel return pipe to the fuel feed pipe.
    10. Attach the rear fuel feed pipe to the inlet side of the fuel filter.
    11. Tighten the line fittings to 16 ft. lbs. (22 Nm). Make sure to use a back-up wrench to prevent the fuel filter from turning.
    12. Connect the vapor hose to the vapor pipe at the front of the vehicle.
    13. Attach the fuel filler vent hose to the tank. Connect the fuel filler hose to the fuel filler neck of the tank.
    14. Install the exhaust heat shield and the mounting bolts.
    15. Position the exhaust system and install the rubber hangers.
    16. Carefully lower the vehicle, then refill the fuel system
    17. Connect the negative battery cable, then install the fuel filler cap, if not done already.
    18. Turn the ignition switchONfor 2 seconds, OFF for 10 seconds, thenONand check for fuel leaks.

    Jan 14, 2009 | 1998 Mercury Sable

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    149 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Chevrolet Experts

    yadayada
    yadayada

    Level 3 Expert

    64052 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    21990 Answers

    Jeff Turcotte
    Jeff Turcotte

    Level 3 Expert

    6812 Answers

    Are you a Chevrolet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...