Re: Fuel injection cars and running out of gas
[Re: Adam71Charger]
#2120384
07/29/16 05:20 AM
07/29/16 05:20 AM
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Joined: Jun 2013
Posts: 1,521 Tacoma, Washington USA
Adam71Charger
OP
pro stock
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OP
pro stock
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
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Reason I ask, is that my daily driver (a 2004), that ran perfectly, died in the parking lot of a grocery store today. I had been really busy the last week and had driven it on empty for about 3 days, kept forgetting to stop at gas station. Today, on the way to gas station, it was running on fumes and sputtered and died. It restarted and I made to the gas station and filled it up. I drove it a mile down the road to the grocery store, and it started idling really low when I parked in the stall. I gave it gas, and it had no effect and died.
I couldn't get it to start and had to get towed home. It cranks when I turn the key, but wont start. I cranked it several times and did not smell any gasoline, which makes me think its not an ignition issue. My main suspicion is the fuel pump. Im thinking it was hard on the pump to drive it for so long on empty, and the pump died. I cannot hear it prime when I turn the key to the on position, but that could also be because the car is newer and well insulated and probably has a very quite pump. Ill get too it this weekend and probably rent an OBD tester as well.
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Re: Fuel injection cars and running out of gas
[Re: Andrewh]
#2120460
07/29/16 10:48 AM
07/29/16 10:48 AM
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Joined: Dec 2003
Posts: 23,295 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,295
Here
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Not sure I buy into the common belief about overheatinbg a fuel pump by running low on fuel. Seems to me, if its pumping any fuel, some cooling is taking place, a pump is not likely to run long on low fuel, because when it runs out, engine stops, and there is the liability issue that would arise from an overheated pump on millions of EFI cars.. I also think the out of fuel hard restarting issue came from the old mechanical diesel injection pumps that air locked. I've run many EFI vehicles low in fuel for years over 500K? miles, still waiting for a problem to develop, but that is of course only my experience, and I might just be lucky.
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: Fuel injection cars and running out of gas
[Re: DaytonaTurbo]
#2120474
07/29/16 11:02 AM
07/29/16 11:02 AM
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Joined: Dec 2003
Posts: 23,295 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,295
Here
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Why not, if efi injector pulses open with pressure, why does it care what comes out?
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: Fuel injection cars and running out of gas
[Re: Adam71Charger]
#2120525
07/29/16 12:12 PM
07/29/16 12:12 PM
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Joined: Jan 2003
Posts: 75,282 A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,282
A gulag near you.
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Go to parts store and rent/borrow a fuel pressure gauge for EFI , better yet by it that way you have it on hand , that will end any speculation.
Mainstream Media is the new Pravda
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Re: Fuel injection cars and running out of gas
[Re: jcc]
#2120666
07/29/16 03:11 PM
07/29/16 03:11 PM
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Joined: Jan 2003
Posts: 26,538 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,538
Rio Linda, CA
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Why not, if efi injector pulses open with pressure, why does it care what comes out? The injectors never open during the key-on prime.
The INTERNET, the MISinformation superhighway
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Re: Fuel injection cars and running out of gas
[Re: John_Kunkel]
#2120736
07/29/16 05:00 PM
07/29/16 05:00 PM
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Joined: Dec 2003
Posts: 23,295 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,295
Here
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Why not, if efi injector pulses open with pressure, why does it care what comes out? The injectors never open during the key-on prime. Megasquirt MX3 Pro manual Ver 1.4: "6.3.6.2 Priming pulse This curve allows you to specify an initial pulse, in milliseconds, that is fired on the first turn of the key to clear air from the fuel lines. You can set the pulse width as a function of coolant temperature."
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: Fuel injection cars and running out of gas
[Re: John_Kunkel]
#2120816
07/29/16 06:39 PM
07/29/16 06:39 PM
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Joined: Jun 2003
Posts: 21,794 It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,794
It's a dry heat
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Why not, if efi injector pulses open with pressure, why does it care what comes out? The injectors never open during the key-on prime. A lot of cars shoot an initial pinch squirt as soon as the key is turned on. But otherwise will remain closed until they see engine rpms
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Re: Fuel injection cars and running out of gas
[Re: stumpy]
#2120937
07/29/16 09:55 PM
07/29/16 09:55 PM
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Joined: Jan 2005
Posts: 12,478 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,478
Kalispell Mt.
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Might have picked up enough junk from the bottom of the tank to clog the fuel filter. They are always sucking from the bottom of the tank and usually the lowest spot in the tank. Also I run mine to well below the "E" every single time and have not had a fuel pump die on one of my rigs in 15 years even useing e-10 or e-85 in non flex fuel cars. Seems whenever we do one for a customer it always has dirt in the tank or it was just a chevy, we replace more fuel pumps in them than all other cars combined.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Fuel injection cars and running out of gas
[Re: Mopar_Rich]
#2121046
07/30/16 01:31 AM
07/30/16 01:31 AM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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I always figured nickle and dimeing the first quarter of the tank was as easy as the last quarter. I never understood running low on fuel. My reason for keeping fuel in the tank comes from old carbs not liking ice in the lines in the winter. More fuel in the tank meant less crap in the lines. It just became a habit to keep the tank at 3/4s full.
I have mechanical Aptitude. I can screw up anything.
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Re: Fuel injection cars and running out of gas
[Re: Adam71Charger]
#2121054
07/30/16 01:41 AM
07/30/16 01:41 AM
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Joined: Jan 2003
Posts: 5,791 Hamilton, Ontario Canada
Magnum
master
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master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
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Not true and why.
Fuel is always picked up from the bottom, through a strainer. Fuel flowing through a pump will cool it. For those that believe a pump must be submerged to live, in most pick up trucks, that means 1/2 a tank or more.
I drive all my cars and work vehicles until they are dangerously low on fuel. Like past 0 miles to empty and sitting on the pin. If I fill up and it takes 15 gallons to fill and I have a 17 gal tank, I bought too early.
Another example is, I used to car pool with a dude that would put in like $5 everytime he drove. The car was never off the pin.
I think Adam, your problem is unrelated.
Last edited by Magnum; 07/30/16 01:42 AM.
69 Super Bee, 93 Mustang LX, 04 Allure Super
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