Question about 1998 Mazda Pickup

1 Answer

98 mazda b2300 truck wont start.fuel problem.

Is it possible to back-blow air from fuel pressure test site back through tank,or is there a 1-way valve in the way?I think the clog is in the tank because when fuel is almost gone, i begin to have the same fix this prob in the past, i would just fill it w/gas and truck ran fine not this time. any help out there?

Posted by on

  • mds2 Apr 20, 2009

    where is fuel filter?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 334 Answers

I would try replaceing the fuel filter frist.then i would un hook the fuel line and see if you got gas to the fuel filterthat will tell you if your fuel pumpis working or not . ok good luck

Posted on Apr 20, 2009


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers


New pump may be bad--it happens. There should be a check valve that keeps fuel from draining back when you turn it off. If this is not working it could cause this.

Oct 17, 2016 | Mazda B2300 Cars & Trucks

1 Answer

92 Mazda b2600i failed pressure test during emissions testing. Where would I start to fix this? They said there is a problem between the gas tank and charcoal box.

clean out charcoal box filter and try to blow line out from charcoal box to fuel tank with low air pressure from a air compressor

Feb 25, 2015 | Mazda Cars & Trucks

1 Answer

Hi have a issue with a mazda .ford product

need to check timeing and valvs might have jumped time or bent a valve or two when it reved up

Dec 08, 2011 | 2007 Mazda B2300

1 Answer

Wont idle or start without priming tbi

first check fuel pressure with a mechanical fuel gauge that attaches to fuel line schrader valve. around T.B.I. if no pressure with key on check fuel pump relay for correct operation, and also the oil pressure switch has the fuel circuit to it so possible oil pressure switch also. fuel pump has a check valve to keep fuel from going back to tank, so when u turn key on fuel pressure should go up within 1-2 seconds on gauge. if fuel pressure goes down quickly, possible bad fuel check valve, change fuel pump and fuel pump check valve (located right above fuel pump inside tank)

Jan 15, 2011 | 1992 Chevrolet K1500

1 Answer

How do I disconnect the pressurized fuel line on Mazda B2300

You need a special tool called a fuel line disconnect tool.You should be able to get one for your specific vehicle at an auto parts store.However that is not the correct or safest way to check for a bad fuel pump.Check out this link for more info.

Jan 31, 2010 | 2002 Mazda B-Series

1 Answer

Can't get gas in my fuel tank

yes. if you look under the car theres a metal tube that the gas cap goes on then it turns to a rubber hose were it connects to tank, wake sure the hose is not kinked or metal tube is not crushed, good luck ,start there.

Nov 28, 2009 | 2007 Mazda B2300

1 Answer

I just changed my fuel filter on my truck. Now it won't start.

I would avoid useing starting will serve no purpose other than causeing engine damge and a possible fire.....Can you hear the fuel pump run when you turn the ignition on? Look on top of your fuel pressure regulator, there should be a purge valve, (kinda looks like a valve stem) with a small screw driver press the stem in to bleed any air out and to see if you have fuel pressure..Be careful, wear safety glasses, don't get gasoline in your eyes. Turn the key on and repeat if needed. If you don't have any fuel pressure... check the fuel pump shut off switch. On B-series models, the switch is located on the passenger's side of the transmission hump, under the carpet.
Good luck...i hope this helps.

Jun 01, 2009 | Mazda B2300 Cars & Trucks

1 Answer

98 b2300 tr wont start how do i check fuel pressure?

there is a fuel supply pipe above the fuel injectors on the right of engine as u stand in front of the truck, on that pipe there is a valve that has a plastic cap on it, the valve looks like a metal tire valve, fuel pressure is checked there, you will need a test gauge to screw on the test port, about $15 at any Kragen or Autozone.

Apr 17, 2009 | 1998 Mazda Pickup

1 Answer

Hi I have a 94 mazda B2300 4 cylinder, Why very poor gas mileage

check the fuel filter or a possible leak in the fuel line or vacuum lines.your exhaust could be clogged causing too much back pressure

Mar 09, 2009 | 1994 Mazda 2WD B Series Pickup

Not finding what you are looking for?
1998 Mazda Pickup Logo

540 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts


Level 3 Expert

76682 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides