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WhAT IS THE Fuel pump pressure specs 95 4runner 3.0 - Cars & Trucks

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38-40 psi (with no vacuum)

Posted on Jan 03, 2017


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Car dies once it warms up

You hook up a fuel pressure gauge to the test port on the engine's fuel rail, and see if the pressure is correct with what is specified for the car. If the pressure is correct, the pump and filter are good, doing what they are supposed to do. Some stores loan or rent fuel pressure gauges. Multiport fuel injection systems usually have high pressure requirements-about 40-50 psi. Check the specs for your car. Usually, the specs call for a pressure with just key on, no start, and a second pressure (maybe 3-10 psi lower) with the engine running.

When it dies, can you immediately restart it, or do you have to wait a bit? Probably fuel or spark related, Any trouble codes present?

Aug 16, 2014 | 1995 Nissan Sentra

1 Answer

Does a 2003 jeep have an inertia switch?

as always check all fuses first....fuse 12,19,and 24, for sure.
which engine,? there are many and a diesel.
each engine has unique EFI and specs....

did you scan the ECU? some engines has DTCs for pump pressure.
look there. using a scan tool.(any in usa work, newer)
my wild guess , car cranks but dont start?
just a clue here.?

looked at and there are no cut out.s.
no inertial, rollover or oil pressure fuel cuts.

the PCM controls 1 fuel pump relay that powers the pump.
we check fuel pressure cranking, to see if it meets spec.
if not , work that,
if good, pressure, then we back up and check spark
fuel is last, not first test.

and if you had a real FSM it does tell you all permisses
for it to allow pump to run.
it cuts fuel for lost spark is one.
or unflood mode.

1: fuses good?
2: all dash lamps glow key on,including the CEL?
3: got spark cranking? if not there will be no fueling by design (logic)
4: if compression is good, the engine runs with test fuel for
say 3 seconds, so you check fuel pressure cranking
and get 0 PSI (the actual pressure, is very important in this diagnosis.
0 , 10psi, 60? ( can be pump, 12v power to pump or regulator bad.)

that is the order, and if you get to #4 we work that.

Dec 29, 2013 | 2003 Jeep Grand Cherokee

1 Answer

2000 Nissan maxima 3.0L how do i know if the fuel regulator is bad

Check Fuel Pressure with a gauge at the motor

If it is not leaking & press is within spec your okey, then
remove the vacuum hose, if it has one & you should see
a higher pump pressure

May also be able to see press with professional sacn tool

Nov 28, 2012 | Cars & Trucks

1 Answer

Fuel pressure specs for gmc sonoma 4.3

2001-2004 gmc sonoma 4.3 [X, W Eng.] fuel system specs: 60-66 psi when you turn the ignition key (fuel pump) on without starting the engine. If fuel pressure drops back down quickly after fuel pump stops working (works for only 5 sec.) then you have a bad fuel pump or leaking injector spider.

Aug 10, 2012 | GMC Sonoma Cars & Trucks

1 Answer

An engine of Mitisubishi Pajero stall during idlling & ties to off when acceleration

Sounds like a weak fuel pump.Check your fuel pressure and if its not within specs replace pump.

May 11, 2011 | Mitsubishi Montero Cars & Trucks

1 Answer

Po303 cylinder 3 missfire kias ephira 2000 will start when cold but will not start again after shutoff please help thank you

get specs for fuel pressure and check it if not within specs replace pump.More than likely you have a weak fuel pump.

Apr 06, 2011 | 2000 Kia Sportage

1 Answer

Have a 97 VW Passat VR6, it died one day as the check engine light came on, it would run for a few minutes and then die, running shorter each time. Took it in to the shop and got the fuel pump replaced,...

You need to check fuel pressure at the fuel rail.if pressure is at spec. Check spark at the plugs. Also replace relay for fuel pump if it isn't working. Could be a bad new fuel pump. Pull the codes first.

Jun 19, 2017 | 1997 Volkswagen Passat

2 Answers

Fuel pump pressure specs

The fuel pump specs are 14 psi. and 20 gallons an hour.

Sep 08, 2009 | 1991 Chevrolet S-10 Blazer

1 Answer

Have spark &60psi fuel.

Probably a bad fuel pump,Fuel pressure specs are 60 to 66 psi fuel pressure.You are at the lower part of the specs the engine wont fire.

Aug 03, 2009 | 1996 Chevrolet C/K 2500

1 Answer

Need pressure spec for fuel pump on carburated 89 accord

need to know how to change the fuel pump, do i have to drop the fuel tank or can i get to it from under the back seat

Jul 26, 2008 | 1989 Honda Accord 4 Door

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