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I have a 60 plate Mazda 3! A few times I have stalled my car and when I restart it my fuel gauge will drop 1/4 so for example if I have half a tank then stall I will be left wilts 1/4 of a tank according to gauge! What is the cause of this?

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  • Cars & Trucks Master
  • 1,381 Answers

Could be a dirty sensor needs cleaning.

Posted on Mar 21, 2014


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  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: car stalls when driving and doesn't restart right away

Fuel filter changed recently? If it just started this & you filled up somewhere you don't normally fill up, then I'd try some "heet" additive or similar to remove moisture from gas tank, just in case that's the problem.$5.00 test.

Posted on Jan 02, 2009

  • 42 Answers

SOURCE: Car stalls when oil pressure drops...20 minutes to restart

No it is a fail safe. When your oil pressure drops below (on most cars) 30 psi your computer will shut your fuel pump down until you either let it sit for a while and it resets or until oil pressure builds again. Sorry!

Posted on Mar 11, 2009

  • 1118 Answers

SOURCE: Stalling on our 96 Dodge Caravan

Once a filter plugs its pluged. You drop that much pressure its time for a new fuel pump.

Posted on Mar 21, 2009

  • 8 Answers

SOURCE: 98 Accord won't start

Check the main relay-PGM-FI Main Relay, called a fuel injector relay(a gray little box with a plug at the end). To make sure it is a bad relay, do this: Turn the key to II, listen for a humming sound from behind you. It is a fuel pump working. You should hear a click under the dash after it. It is a main relay click . If you do not hear a click, you car will not start. If you do hear a click, you car will start.
Fix is to take the relay out, resolder the joints and put it back in. Go on www. and both sites will show you how to resolder the main relay and where it is located if it is the PGM-FI Main relay.

Posted on Jul 25, 2009

  • 957 Answers

SOURCE: It runs for about 2-3 miles at 60 mph and then

First off, I appreciate your thorough description of what the symptoms are, ok lets go on. It sounds like your air/fuel ratio is off and is getting progressively worse. I don't think you will get this on the first guess. There are things you need to check out with the trucks systems to help narrow your search down. I don't know the trucks maintenance history but if you know that may help.
Look at the EGR valve, if it is stuck that would let an uncontrolled amount of exhaust gas back into the engine for reburn.
If the CAT is clogged the excessive back-pressure would cause the engine to run richer thus loosing gas mileage.
You really need a scan-tool to help. This type of device would allow you to look at live data and see if the component is operating within the specified range. Also a repair manual would help describe to you, the procedures to test suspected components. If you have anymore questions, let me know.

Posted on May 16, 2010

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2004 jeep GC stalls out after running awhile.Changed fuel pump still have stalling problem

which engine.????

why guess?

ill assume the full 60k mile tune up was done.

you picked the most hard fix of all and guessed wrong, wow.

if the engine is good, compression great.

there are only 3 causes of stalls, in pure Physics. bla bla....

in reality parts wise over 50,, guessing is not going to work.

what does worK? diagnosis, want to test or guess.?

on all jeeps we have this funny thing called ASD,

but first, i must ask a key question. can your right FOOT save the stall if it gets happy footed , at the stall point?????? bid deal important that.?????

ill pretend NO, for THAT.( post the facts ,im showing real tests , and real results here) yours will vary.....

lost spark?, is the cause, not fuel.? (efi cuts fuel for loss of spark in the ECU LOGIC, so spark is first ,if hot compression is not dropping)

but id check the ASD next or drive with a scan tool attached (any) and see the PCM/ECU tell you why it stalled ! , it will 1/2 the time.

in addition to that, the ASD relay must be monitored, (scan tool will do same)

if the RELAY DROPS? then we know why , see?

see the 8 ways to DROP and ASD here !

see those, if they drop , each tells you why.

if the ASD did not drop, then it starved for fuel. (compression good)

Examples more./......

say , you get no DTC errors (scanned), and ASD holds fast,. at stall?

more examples::::

does it starve for fuel with gas cap loose , then wrong cap

its missing the vacuum breaker inside, a 5 buck fix. and kids can change it. or worse?, caused it.LOL

More examples:

we use a fuel pressure guage at the fuel rail (TOOLS RULE)

if the pressure drops, at stall , and not ASD drop.?

then you have bad wiring from the fuel pump relay to the tank pump.

or a bad relay. the volt meter will prove that.. easy.

very common on all EFI cars, bad wiring, and 10x that in the salt belts.

google salt belt, or wiki it.

this is how all 1993 jeep to present run. ASD is first to watch , hint.!

ASD dont drop:

if fuel pressure is good?, then wrong tree to bark up.

if fuel pressure was low, check voltage to pump cranking

must be 12v, or 11, if cold and battery weak

less voltage , is BAD. fix bad. (clean connections.)

only takes 3 tools.

  1. volt meter

  2. compression gauge.

  3. fuel pressure gauge.

a vacuum gauge part of a hand vacuum pump is nice.

most fail paths can be found with minimal tools. about 60 bucks worth. in any DIY shop.

and sorry , you cant fix modern cars with out a scan tool

buy, rent or barrow one. they are everywhere.

all answers, USA and no engine stated so 100% generic answers.!

not flex fuel opted, not CNG engines.

and P0181 not set, pump dead, error fuel pump.

see this page.


click WJ

click Emission

click on diagnosis section see all those DTCs, get any????

no P0215?

loss of cmp , loss of CKP

gross missfiring? codes.

endless really, scan it. at stall , scan it.




Sep 24, 2014 | 2004 Jeep Grand Cherokee

2 Answers

I have a 92 Storm GSI. When driving down the road the car stalls like it is out of gas then starts running. I have replaced the fuel filter, pump and relay. Any other ideas?

For the age of this car it is a combination of both the fuel filter and pump, i owned one several years ago and found that the gas tanks are prone to rust inside, if you have replaced the pump and filter you may want to drop the tank again and check the screen on the pump if it is brown you have rust in the tank: another problem i had ( if you bought an oem pump ) they tend to slip out of position, you can tie the pump it place so it doesn't move......

Jun 29, 2011 | 1991 Geo Storm

1 Answer

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Start by checking your instument cluster fuse as it may have blown. Unfortunately the fuel gauge sending unit is a part of the fuel pump inside the fuel tank. The sending unit may have gone bad even though the pump is still working. to replace the pump it will require dropping the fuel tank to get to it unless there is an access plate above the tank in the rear of the vehicle.

May 08, 2011 | 1993 Jeep Grand Cherokee

1 Answer

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Apr 15, 2011 | 2007 Subaru Impreza WRX Sport Wagon

1 Answer

Fuel gauge needle stopped at half tank when filled up ?

either the gauge in the cluster or the sender in the tank is bad. call a dealer and ask how much to fix each and make a call as to whether or not you will pay to get it fixed. you can buy a repair manual on CD on eBay for about 10 bucks or go to youtube and look for a video of someone removing a gas tank and/or an instrument cluster on a 02-05 mazda. they will all be pretty much the same. then you can decide which you want to attempt. having done both, the cluster is generally easier than dropping a tank. if you drop the tank do the fuel pump as well so you do not have to drop the tank again in 2 years to replace a bad fuel pump. you can generally find used replacement clusters for sale on eBay.

i would suspect the sender unit first, they are simply a float which moves a variable resistor. if the float loses its buoyancy, you get bad readings.

Feb 05, 2011 | 2004 Mazda 3

1 Answer

93 Deville, 4.9L, 113k miles. I'm a decent mechanic (have replaced engines, heads, etc.). The latest problem is an intermittent stall. The first time it happened the car was driven for 10 mins then...

Now you can do the Fuel Pump

They seize up mechanically and fail

Did you drive with a fuel pressure gauge,
taped to the windshield

Got a good fuel filter

Looking won't help you

Always do some type of testing,
before replacing anything

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Stalling on our 96 Dodge Caravan

Once a filter plugs its pluged. You drop that much pressure its time for a new fuel pump.

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