Question about Toyota Camry

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Vacuum in gas tank

1988 Camry turns over but will not start. Replaced fuel filter. when I took the cover off the sending unit, under the back seat, I noticed it made a noise like there was a vacuum on the gas tank. What would cause this? Fuel pressure regulator? Fuel cap with a release feature?

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  • Toyota Master
  • 42,108 Answers

Run a fault code check as it sounds like there is a problem with the canister purge valve/solenoid.

Posted on Apr 21, 2013

  • Alex Mulvaney Apr 21, 2013

    Will it pull up a code even if there is no engine light on?

  • Bill Boyd Apr 21, 2013

    There are several sensors that the cpu moniter and that item is included in the tests. Normally the engine light firstly indicates faults that may be detremental to the engine and gear box..With so much vacuum in the tank I am surprised that you have not noticed a problem with performance.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

delgriffith
  • 97 Answers

SOURCE: How to install a new fuel pump in my 1998 Honda

the gas gauge contacts get corroded by the chemicals in your gasoline over time, the only way to fix that is to replace the fuel sender unit...unfortunately the sender unit is usually incorporated into the fuel pump. fuel delivery problems like you describe could be clogged or dirty fuel injectors...if it's dying out on you as you drive it probably is indeed the fuel pump...usually an expensive fix. try an auto wrecker to find one for about 100 bucks.

Posted on Jun 19, 2009

  • 1201 Answers

SOURCE: Where is the fuel regulator located on a 1988 tbi

No, low fuel pressure is caused by a weak fuel pump.
High fuel pressure is caused by a faulty fuel regulator.

Posted on Nov 14, 2009

alicantecoli
  • 22156 Answers

SOURCE: bmw 325tds diesel flowing back to tank when parked

usual problem ,valves in injector worn for the fuel pump.easy quick fix this one ,fit a non return valve in the inlet pipe,check flow direction on valve when fitting and evan better as well is another in the bleed off return pipe .valves available from a motor factor or a specialist garage like bosch or lucas ,cut pipe and fit the valve with a piece of rubber pipe to connect the valve in line.or listen to the people who want to milk the golden cow and have the whole injector pump overhauled .

Posted on Dec 23, 2009

bbbman78
  • 680 Answers

SOURCE: 1996 Ford F-350 460 gas engine. Stalls while going

I'd check the manual transfer valve on the dash. They have a tendency to go bad after awhile. Cause 1000 different symptoms, and be the last thing checked/replaced. It's probably the cheapest place to start. The pump under the driver's feet is usually the last one to go in my experience, but the secondary culprit is normally the main pump in the rear tank.

Next time it tries to stall, toggle the fuel switch and see what happens. Same with a hard start. Back and forth a few times quickly.

Hope this helps.

Posted on Mar 06, 2010

Testimonial: "thanks for the tip. Already replace this switch. "

vetteman3002
  • 2299 Answers

SOURCE: 1989 Bronco II have replaced fuel

Is it the 2.8? I am just thinking of what cycles and would cause the engine to run bad. The fuel relay would not be the problem. Because if it doesn't close, then the engine does not run at all. The power distribution box is a possibility. But I am thinking about what you are saying the problem cycles. That is the strange thing. I think that the cycling has to do with pressure in the fuel tank. Have you tried changing the gas cap? That could be all that the problem is. But it could also be the vent in the fuel tank. The reason why I am thinking this is because the fuel tank builds pressure from the gas sloshing around and when it builds up too much pressure then it relieves. What do you think?

Posted on Dec 15, 2010

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1 Answer

Engine is not recieving any fuel


plugged fuel filter or fuel injectors or bad fuel pump,try fuel injector cleaner if it runs at all,but it will take time for it to work,if not that,then change your fuel filter,it should be under your car on your fuel line coming from your gas tank,other wise it could be under your hood,without having the haynes repair manual for it you will just have to look for it,if its your fuel pump you might have to drop the tank to get at it or see if you can access it under your back seat,or you might have a fuel pump reset switch,either in glove box or trunk,you will just have to check for one because like i said without the manual its guess work

Jan 19, 2013 | 1988 Toyota Camry

1 Answer

How do i replace the fuel level sensor on a 2005 kia sorento


What You'll Need:
  • flat head screwdriver
  • Phillips head screwdriver
  • hammer
  • open end wrenches
  • replacement fuel tank sending unit
    Before you begin, disconnect the negative battery cable to be sure no electrical sparks are possible. You're dealing with gas which is highly flammable!Your fuel tank sending unit is located in the top of the fuel tank, but is accessible under your back seat (or under the carpet in your trunk) on some models. The sending unit will be protected by an access cover, usually held on with a couple of screws. Lift your back seat or trunk carpet and locate the access cover for your fuel tank sending unit. Remove the screws holding the cover in place and remove the access cover to reveal the fuel tank sending unit.
    Safety Note: Gasoline is highly flammable. By removing the fuel tank sending unit, you are opening the gas tank. Be sure there are no sources of spark or flame nearby.
    With the access cover removed, you'll see the fuel tank sending unit right there on top. It will have a wiring harness plugged into the top (this tells your gas gauge how much fuel is in the tank). Unplug the wiring harness and move it safely to the side. If your fuel tank sending unit is screwed or bolted in place, remove the screws or bolts. Some sending units are a "twist-lock" type. They work like the old twist-lock gas caps. You'll see a few notches along the outer ring of the sending unit. Place the tip of a sturdy flat head screwdriver in the notch and gently tap it counter-clockwise. The sending unit will rotate until it's loose. (the picture above shows the fuel tank out of the car to illustrate the fuel tank sending unit's location). Now you can remove the fuel tank sending unit in one piece. Attached to it is a long rod with a float at the end, so you might have to try a couple of different angles to get it out. As usual, installation is the reverse of removal. Don't forget to plug the new sender in or it won't send you anything!

Jun 22, 2012 | 2005 Kia Sorento

1 Answer

How to install fuel filter&pump


  • De-pressurize the Camry's fuel system. With the gas cap open (to release pressure in that location), open the fuse/relay panel under the hood and remove the relay labeled "C/OPN." Start the engine and let it run until it stops. Disconnect the battery's negative cable.

  • Detach the rear seat from the car. Lift up the front edge of the seat bottom cushion, disconnect the mounting bolt underneath and remove the cushion. Pull up the seat back locks, flip the seat backs down and remove the mounting bolts.

  • Remove the service hole cover from the floor under the seat concealing the fuel pump/sending unit.

  • Disconnect the fuel line and electrical connectors from the fuel pump unit. Remove the retaining bolts and withdraw the unit carefully out of the fuel tank.

  • Release the clips on the fuel pump assembly's plastic support with a screwdriver to remove the support. Then pull off the rubber isolator, remove the fuel sock filter and disconnect the electrical connector from the top of the assembly. You can now withdraw the fuel pump from the housing.

  • Connect the new fuel pump into place on the assembly housing. Reassemble the fuel pump/sending unit in order, from the electrical connector to the fuel sock filter, rubber isolator and bottom plastic support.

  • Place the pump unit back within the fuel tank and reattach the bolts. Reconnect the electrical connectors and the fuel line. Reattach the rear seats.

  • Replace the "C/OPN" relay, reconnect the negative battery cable and fill the fuel tank if it is empty.

  • Pressurize the Camry's fuel system by turning the ignition on for a couple of seconds. Then turn it off for ten and repeat this five to ten times.

  • Jan 02, 2011 | 1996 Toyota Camry

    3 Answers

    How do you replace fuel pump 1993 camry


    1992-96 Models

    Be sure this procedure is done in a well ventilated area.
    1. Disconnect the negative battery cable.
    2. Relieve the fuel pressure.
    3. Remove the rear seat cushion.
    4. Remove the floor service hole cover.
    5. Disconnect the electrical fuel pump wiring at the fuel pump assembly. Check for any fuel leakage while in there.

    5b4fccc.jpg

    Fig. 6: Pull back the rug under the rear seat to access the fuel pump and sending unit cover
    1. Remove the gas cap, this will prevent any fuel gas spilling out of any high pressure lines.
    2. Using SST 09631-22020 or an equivalent line (flare nut) wrench, disconnect the outlet

    pipe from the pump bracket.
    1. Remove the pump bracket attaching screws.
    2. Disconnect the return hoses from the pump bracket, then pull out the pump/bracket assembly.
    3. Remove the nut and spring washer, then disconnect the wires from the pump bracket.
    4. Remove the sending unit attaching screws, then remove the unit from the bracket.
    5. Pull the lower side of the fuel pump from the bracket.
    6. Unplug the connector to the fuel pump.
    7. Disconnect the hose from the pump.
    8. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip.
    9. Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
    10. When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration.

    To install:
    1. Install the pump filter using a new clip. Install the rubber cushion under the filter.
    2. Connect the outlet hose to the pump, then attach the pump to the bracket and tighten to 22-25 ft. lbs. (29-34 Nm).
    3. Engage the connector to the fuel pump.
    4. Install the fuel sending unit to the pump bracket.
    5. Install the fuel pump and bracket assembly onto the tank. Use new gaskets. Tighten the pump bracket retaining screws to 34 inch lbs. (4 Nm).
    6. Connect the return hoses to the pump bracket.
    7. Install the service hole cover, then the engage the fuel pump and sending unit connector.
    8. Install the rear seat cushion.
    9. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.

    Hope this help (remember comment and rated this).

    Apr 09, 2010 | 1992 Oldsmobile Cutlass

    1 Answer

    How do you change a fuel pump on a 1995 camry?


    1992-96 Models
    See Figure 6
    Be sure this procedure is done in a well ventilated area.
    1. Disconnect the negative battery cable.
    2. Relieve the fuel pressure.
    3. Remove the rear seat cushion.
    4. Remove the floor service hole cover.
    5. Disconnect the electrical fuel pump wiring at the fuel pump assembly. Check for any fuel leakage while in there.
    fuel pump and sending unit cover
    1. Remove the gas cap, this will prevent any fuel gas spilling out of any high pressure lines.
    2. Using SST 09631-22020 or an equivalent line (flare nut) wrench, disconnect the outlet

    pipe from the pump bracket.
    1. Remove the pump bracket attaching screws.
    2. Disconnect the return hoses from the pump bracket, then pull out the pump/bracket assembly.
    3. Remove the nut and spring washer, then disconnect the wires from the pump bracket.
    4. Remove the sending unit attaching screws, then remove the unit from the bracket.
    5. Pull the lower side of the fuel pump from the bracket.
    6. Unplug the connector to the fuel pump.
    7. Disconnect the hose from the pump.
    8. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip.
    9. Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
    10. When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration.

    To install:
    1. Install the pump filter using a new clip. Install the rubber cushion under the filter.
    2. Connect the outlet hose to the pump, then attach the pump to the bracket and tighten to 22-25 ft. lbs. (29-34 Nm).
    3. Engage the connector to the fuel pump.
    4. Install the fuel sending unit to the pump bracket.
    5. Install the fuel pump and bracket assembly onto the tank. Use new gaskets. Tighten the pump bracket retaining screws to 34 inch lbs. (4 Nm).
    6. Connect the return hoses to the pump bracket.
    7. Install the service hole cover, then the engage the fuel pump and sending unit connector.
    8. Install the rear seat cushion.
    9. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.

    Mar 03, 2010 | 1995 Toyota Camry

    2 Answers

    WHERE IS THE FUEL PUMP ON A 1994 TOYOTA CAMRY


    Fuel pump is located inside the fuel tank and is attached to the sending unit. Do not smoke or have any open flame in the work area when removing the fuel pump.

    REMOVAL OF FUEL PUMP:

    1. Disconnect the negative battery cable.
    2. Relieve fuel pressure
    3. Remove the rear seat cushion.
    4. Remove the floor service hole cover .
    5. Disconnect the electrical fuel pump wiring at the fuel pump assembly. Check for any fuel leakage while in there.
    6. Remove the gas cap, this will prevent any fuel gas spilling out of any high pressure lines.
    7. Use a fare nut wrench to disconnect the outlet.
    8. Remove the pump bracket attaching screws
    9. Disconnect the return house from the pump brackets, then pull ou the pump/bracket assembly.
    10. Remove the nut and spring washing, then disconnect the wires from teh pump bracket.
    11. Remove the sending unit attaching screws then remove the unit from the bracket.
    12. Pull the lower side of the fuel pump from the bracket.
    13. Unplug the connector to the fuel pump
    14. Disconnect the hose from the pump.
    15. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip.
    16. Inspect all the lines, houses and fittings for any sign of corrosion, wear and damage to the surfaces. Check the pump outlet hole and the filter for restrictions
    17. When reassembling, ALWAYS replace the sealing gasket with a new ones. "Also replace any rubber parts showing any sign of deterioration".

    To install:
    1. Install the pump filter using a new clip. Install the rubber cushion under the filter
    2. Connect the outlet hose to the pump and pump bracket.
    3. Engage the connector to the fuel pump. Install the fuel sending unit to the pump bracket. The remainder of the installation is the reverse of the removal.
    4. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.

    Dec 15, 2009 | 1994 Toyota Camry

    2 Answers

    Inside the cabin strong gas smell after fill up for approx 50 miles. 2003 Honda Odyssey 85k miles.


    do you have the same fuel economy as before or does you gas last less miles than before. if you can smell gas whether the car is running or NOT that means you have a leak in your fuel system if it was not a leak, you would not smell it when not running . first thing is check under vehicle after overnight parking and see if there is fuel on the ground if there is , this will give you a starting point where to look for gas leak. Plugged, dirty or poorly connected fuel injector; Leaking fuel filter or fuel filter connections; Punctured or damaged fuel tank; Loose or poorly connected fuel pump; Gas in gas can in trunk.

    Dec 14, 2009 | 2003 Honda Odyssey

    4 Answers

    How do i change a fuel pump on a 1992 toyota camry


    1992–96 Models NOTE: Be sure this procedure is done in a well ventilated area.
    1. Disconnect the negative battery cable.
    2. Relieve the fuel pressure.
    3. Remove the rear seat cushion.
    4. Remove the floor service hole cover.
    5. Disconnect the electrical fuel pump wiring at the fuel pump assembly. Check for any fuel leakage while in there
    Fig. 6: Pull back the rug under the rear seat to access the fuel pump and sending unit cover

    7cf94fb.jpg
    1. Remove the gas cap, this will prevent any fuel gas spilling out of any high pressure lines.
    2. Using SST 09631–22020 or an equivalent line (flare nut) wrench, disconnect the outlet pipe from the pump bracket.
    3. Remove the pump bracket attaching screws.
    4. Disconnect the return hoses from the pump bracket, then pull out the pump/bracket assembly.
    5. Remove the nut and spring washer, then disconnect the wires from the pump bracket.
    6. Remove the sending unit attaching screws, then remove the unit from the bracket.
    7. Pull the lower side of the fuel pump from the bracket.
    8. Unplug the connector to the fuel pump.
    9. Disconnect the hose from the pump.
    10. Separate the filter from the pump. Use a small screwdriver to remove the attaching clip.
    11. Inspect all of the lines, hoses and fittings for any sign of corrosion, wear or damage to the surfaces. Check the pump outlet hose and the filter for restrictions.
    12. When reassembling, ALWAYS replace the sealing gaskets with new ones. Also replace any rubber parts showing any sign of deterioration. To install:
    13. Install the pump filter using a new clip. Install the rubber cushion under the filter.
    14. Connect the outlet hose to the pump, then attach the pump to the bracket and tighten to 22–25 ft. lbs. (29–34 Nm).
    15. Engage the connector to the fuel pump. Install the fuel sending unit to the pump bracket.
    16. Install the fuel pump and bracket assembly onto the tank. Use new gaskets. Tighten the pump bracket retaining screws to 34 inch lbs. (4 Nm).
    17. The remainder of installation is the reverse of removal. Tighten each component to specifications. Start the engine and check carefully for any sign of leakage around the tank and lines. Road test the vehicle for proper operation.
    PLEASE DON'T FORGET TO RATE!!!! THANKS!!!!

    Aug 30, 2009 | 1992 Toyota Camry V6

    1 Answer

    Kia optima2006 2.4 L where is the fuel filter


    The fuel filter is apart of the fuel pump in the gas tank, It's considered at life time filter which means you don't need to replace it unless there is a problem with your fuel pressure or the fuel pump has gone bad and needs to be replaced. The filter it self can be replaced from the fuel pump sending unit, but the filter is a dealer item and the access panel is under the back seat to get to the fuel pump assembly with out dropping the gas tank. Good luck and hope this helps., be glad to help

    Jun 11, 2009 | 2006 Kia Optima

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