i have a maza b2500 truck im having troble with the motor turns off when engine get warm it takes about 20 min to start it when this happens someone please help me. i have change head, timing belt,sparkplugs and wires. i dont know if fuel relay going out or not


Asked by Feb 25, 2015 at 01:29 AM about the 1999 Mazda B-Series Pickup 2 Dr B2500 SE Extended Cab SB

Question type: Maintenance & Repair

15 Answers


when you start it when cold does it idle normally?

2 out of 2 people think this is helpful.


1 out of 1 people think this is helpful.

when you say turns off do you mean flat out turns off or slowly dies?


yes sir


turn off

1 out of 1 people think this is helpful.

i have to coast to side of the road but wait 10 mins or so it will start back up


ok fuel relay should be swap-able with another relay the same. that would be where i start first ( cheapest) second item would be fuel filter. have you tested your fuel pressure at your fuel rail?


no sir


how u test it


you need to own or borrow a fuel pressure tester. and there should be a little cap usually on the end of your fuel rail called a shraider valve and when you take the cap off it should almost look like a valve stem you put your fuel pressure tester on the end and turn your key on and asses the pressure and ensure its maintaining pressure i am attaching a link to help you out you want to see 56-72 psi or if you have a 3.0L flex fuel 55-75 and make sure it doesnt lose more then 5 psi https://www.youtube.com/watch?v=_oXLUqE4Sf0

1 out of 1 people think this is helpful.

im thinking either fuel relay or your pump is going out (overheating) how many miles on it and have you ever had a pump changed also try with a full tank of gas and see if it still does it as the pump uses the fuel to keep it cool. and do you get any service engine light on or security light and does your accessories stay on when it dies

1 out of 1 people think this is helpful.

to me it is showing signs of a bad pump it pushes the fuel on initial start up and runs the vehicle for a bit but then the pump overheats and quits and wont start again till it cools down. or the relay is heating up and doing sort of same thing. but a clogged fuel filter will also cause the pump to over pressurize and make it quit from working too hard.


thanks alot will try that thanks alot


If you have a b2600i I dont know of a shrader valve onthe fuel rail. However my best suggestion to you is to get a Haynes shop book and look under section 4 which is fuel and emissions and it tell you how to do it. If there is a harbor freight near you then you can pick up a tester fairly cheap. However, if you are not constantly working on cars i suggest renting one for a couple of hours. AutoZone, Oreiillys has a tool loan program. If where you live has none of these places, check with your local auto stores they may know where and how you can get a tester. The operable pressure should be no lower than 27 psi or no higher than 35 on a 90s b2600i.


Also. Your fuel pump relay is in the driver side kick panel. Remove it and start the truck its a yellow looking little box with a plug going to it. While the truck is idling touch it. Is it getting hot? If so replace it. Those are the only things i can suggest.

Your Answer

Add photo

Related Questions

B-Series Pickup

Looking for a Used B-Series Pickup in your area?

CarGurus has 202 nationwide B-Series Pickup listings starting at $1,795.


Search Mazda B-Series Pickup Questions

Mazda B-Series Pickup Experts

#1 BoholMark
Reputation 360
#2 FordNut
Reputation 250
#3 Tracy Hooks
Tracy Hooks
Reputation 220
View All

Related Models For Sale

Used Ford Ranger
209 Great Deals out of 6,719 listings starting at $1,450
Used Toyota Tacoma
627 Great Deals out of 35,082 listings starting at $2,155
Used Ford F-150
2,876 Great Deals out of 212,656 listings starting at $1,000
Used Nissan Frontier
443 Great Deals out of 23,950 listings starting at $1,900
Used Chevrolet S-10
14 Great Deals out of 1,662 listings starting at $1,995
Used Dodge Dakota
119 Great Deals out of 4,308 listings starting at $995
Used Toyota Tundra
621 Great Deals out of 30,696 listings starting at $2,637
Used Dodge Ram 1500
535 Great Deals out of 12,998 listings starting at $2,199
Used Chevrolet Silverado 1500
2,301 Great Deals out of 156,238 listings starting at $1,395
Used GMC Sierra 1500
928 Great Deals out of 62,271 listings starting at $1,395

Used Cars For Sale

2001 Mazda B-Series Pickup For Sale
35 listings starting at $1,795
2000 Mazda B-Series Pickup For Sale
31 listings starting at $2,495
1998 Mazda B-Series Pickup For Sale
34 listings starting at $4,999