Question about 1984 Toyota Celica Supra

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No fuel getting to fuel rail whilst cranking engine over engine has not been run for over 2 years it always started ist time for years

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Your fuel pump has probably seized if it hasnt been ran for two years

Posted on Feb 06, 2010

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Have 1999 vw jetta engine code c 2.ol 4cyl. just did a motor swap. same year same engine. turns over but wont start gets fuel to the rail and injectors but wont fire...if i hold a rag over it starts


if donor motor was a runner
should have worked and started no issues

if fuel and spark is there
something not connected
crank angled sensor

if engine light is on has fault codes






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Nov 06, 2016 | Cars & Trucks

3 Answers

What may cause a difficult to start situation? It usually takes 3 attempts, cranking the engine (10-15 seconds), before it will start.


You would need to know if you are lacking fuel pressure or spark when the problem happens to know which system to test.
A relay or ignition component could be getting hot and not working, or the fuel pump could be loosing pressure.

Mar 25, 2015 | Cars & Trucks

2 Answers

Jeep 96 dies sometime going down the road and wont start sometimes. will start after 10 miles at times and 24 hrs sometimes. the dash says check gauges. help woman alone need advice


Fuel pump intermittent, check for fuel pressure before dropping the tank to renew pump.
Otherwise check electrical connection at battery, and make sure you do not have an open circuit.
Loss of connectivity could cause this issue, failed fuel pump sometimes work, but are not reliable.
You should see 30-45 psi at fuel rail, and the regulator should bump pressure 5 psi when reving the motor. Higher pressure indicates failed regulator.

Jun 23, 2014 | 1996 Jeep Grand Cherokee

3 Answers

1987 cheverolet camaro will not start. Replaced a but load of parts...good spark , computer is new and working , fuel pump is new and working , distributor new and working , throttle position sensor new...


I think I would be looking at the crank angle sensor and/or the cam sensors on this vehicle.It seems to me the engine isn't getting the signal to fire up.What happens when you squirt some fuel into the combustion chamber ? If it fires up I would be looking at cleaning the injectors.If it doesn't fire up What's the pressure on the fuel rail. does it have a buy pass pressure valve on the rail.Some suggestions good luck

Jun 07, 2014 | 1987 Chevrolet Camaro

1 Answer

Takes a long time for fuel pump to prime before car will crank. sometimes 15+ minutes


Something is definitely wrong with this picture. It should only take 2 or 3 seconds for the pump to make correct pressure. Just turning the key to on turns the pump on to pressurize the system, then pump will shut off, maintaining pressure, until the computer gets an engine cranking signal, at which time pump should come back on, and stay running when engine is running.
The only way to check fuel pressure is with a fuel pressure gauge hooked onto the fuel rail. If you check and pressure is correct and doesn't drop right away, the problem is elsewhere, not in the fuel delivery. You said takes a long time before car will crank-is there a problem with the engine cranking over with key in start? That would be an ignition or starting circuit problem, not having anything to do with the fuel pressure.

Apr 10, 2013 | 1997 Ford Thunderbird LX

2 Answers

How much fuel pressure is needed? I can not hear the pump but when I crank the engine fuel comes out of fuel rail. Car starts and dies right away


30-40 psi. th epump should run for 2 seconds when turning the key on, then run when engine is cranking and/or running.

Sep 22, 2011 | 1992 Mercury Cougar

2 Answers

Ran out of gas in my 1994 jeep cherokee, put in 2gals and can't get it to start now. Cycled the engine several times and attempted to start again and still nothing. Not sure where to go from here


did you run out of gas or did the pump fail ?? have you bled it off on the fuel rail ,look on the fuel feed to the injectors and there is a tyre valve looking thing ,take the dust cap off and then push it in with a something whilst someone cranks engine and see if you have fuel coming through

Mar 06, 2011 | 1994 Jeep Grand Cherokee

1 Answer

1993 Jeep Grand Cherokee will not start. When


Check your fuel pump ,fuel lines,.One of the most overlooked starting causes is fuel delivery. Find the fuel rail to the injectors. Assuming you don't have a fuel pressure gauge, remove the dust cap on the fitting on the fuel rail and press the center pin in the valve to see if there's a good amount of pressure for a very brief second. There will be no continuous pressure unless the engine is running or is being cranked over. Have somebody crank it for you for a second to see if high pressure is present.

If not, first look at the fuel cutoff switch usually located in the inside stowage compartment of the vehicle. See if the reset button clicks when you press it. Next check the fuel pump fuse and relay, and finally the pump itself could be bad.

Sep 29, 2009 | 1993 Jeep Grand Cherokee

3 Answers

"Cranks, but won't start". Replaced fuel pump, CKP, ICM & nothing


If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine..

Aug 27, 2009 | Chevrolet Camaro Cars & Trucks

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