Question about 1990 Dodge Dynasty

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I believe it is the fuel pump because when I prime it with raw fuel it goes. Then when the fuel is used it wont start. The car has been sitting for quite a while[1yr.] Seems it must be the fuel pump, but where is it located? 1990 Dodge Dynasty 3.3 engine fredhu@Q.com

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Try a new fuel filter first, the pump may be in the fuel tank but I am not sure as I am not familiar with that car.
The fuel filter may be under the car more towards the rear near the rear passengers foot well

Posted on Sep 27, 2010

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Car has been sitting up and will not start now. It seems to not be getting gas and I do not know how to prime a fuel injection system. Any help appreciated.


There is only a few cars fitted with an ancient petrol injection system that needed any priming.

Diesel engines mostly need the injection system priming but petrol injection systems do not.

Lots of cars use a system where the fuel pump runs for a couple of seconds when the ignition is switched on and that is all the time it takes to prime the fuel system. After a couple of seconds the fuel pump switches off and waits to restart when the engine is cranked.

As priming the system takes only a couple of seconds some manufacturers don't bother with the brief priming run of the pump and just have the pump start when cranking.

Could be faulty supply, fuse, pump relay or the pump itself.
If the car is fitted with an immobiliser, perhaps that is the problem.

May 07, 2016 | 1998 Mercury Mystique

1 Answer

Why will my 1998 chevrolet cheyenne not start unless primed after sitting overnight


by primed are you supplying a fuel source if so then the car is not getting fuel to burn. this indicates your fuel pump is bad and needs replacing and change the fuel filter also. the reason the pump won`t work sitting overnight is that the pump can`t build up enough pressure possibly because the fuel pressure is not being held, but after the first start up the system can maintain enough pressure to start through out the day. you can have the fuel pressure and volume checked with a gage when the problem occours to verify.

Aug 25, 2014 | Cars & Trucks

1 Answer

WHEN LEFT FOR AN HOUR MY 2010 SPRINTER TAKES A LOT OF CRANKING BEFORE IT STARTS. WHEN IT HAS BEEN RUNNING THERES NO PROBLEM UNTIL I LEAVE IT FOR AN HOUR IT WONT START AGAIN SOMENE SAID IT COULD BE THE FUEL...


I've had the same problem with my truck. It's not unusual for one to have to re-prime the fuel pump. just turn the key on, let it sit for a second, and when you no longer hear the fuel pump priming fuel (sounds like a whining noise before you start the engine), crank it up.

Sep 16, 2013 | 2010 Mercedes-Benz Sprinter

2 Answers

1999 blazer only starts when primed and then wont start after sitting


Black smoke is usually extra fuel, but you say you are priming it to start so that could be why.
Have you checked fuel pump pressure before and after cranking ?

Mar 04, 2013 | 1996 Chevrolet Blazer

1 Answer

The problem is it wont start it has a good battery its turning over just wont start


Really-- 3 mufflers,rather than figuring out why
the first one went

I guess you asked for a new muffler & no other
diagnosing, as to the cause

Now after 5months-- maybe someone on the internet
could guess

If the fuel pump check valve has failed, it will take longer
to start, but only after a long sit

You have a problematic fuel pressure regulator under the
intake manifold, that could be leaking & dumping raw gas
into the exhaust

Buy now your exhaust converters are ruined by you
procrastinating & all the raw full

Dec 06, 2012 | 1999 Chevrolet Blazer

1 Answer

My 1998 Ford Contour will either start or it wont, when it does start it does so just fine, but sometimes it wont prime (it wont make that short whirring sound before you start the engine) and wont start,...


You might want to change the fuel pump Relay. You seem to know when it is getting fuel and when it does not. It is a lot easier to change a Relay than misdiagnose a bad pump. There are several signals which combine to make all the terminals on the fuel Relay switch work. The ignition wire makes the coil inside the Fuel relay connect other terminals. If the contacts are worn out, you can get an intermittent connection.

Next, for how it runs when first started, the brain gets a signal from a water temperature sensor which is an additional sensor than the water gauge. You should notice a higher RPM for a few minutes and then it will drop to normal. This action is the Cold Start Routine. It also makes the fuel mix richer. If the car is missing this routine, the engine can die at idle.

You can get a free scan at Autozone or Oreillys and it may show more details.

Dec 27, 2010 | 1998 Ford Contour

1 Answer

93 Dodge Shadow 2.2l started having issue of running then dying, replaced fuel pump and filter. Car ran till warm up, shut it down to clean up for a test drive, stalled and now wont start, cranks but no...


I would look for spark, you may have an ignition problem. it would be a sensor that goes into your distributor, the plug should be a round one with i believe 4 wires.

Oct 29, 2010 | 1993 Dodge Shadow

1 Answer

My 1995 Lincoln Mark 8 wont start how do I know its the fuel pump


go out and sit in your car with the door open turn on the ignition key and when you turn it on you should hear the fuel pump prime in the gas tank, if you hear it prime up then its something else. If you don't its the pump.

Nov 05, 2009 | 1993 Lincoln Mark VIII

1 Answer

Running fine then now wont start, fuel pump or will the fuel relay module cause the car to get no gas


More likely the fuel pump.........check for power to the pump on the gray wire at the fuel pump connector at the tank.(wires from the tank)You should see a prime cycle voltage as you turn the key on...if the key has been off 15 seconds. If you see a test light, light.......change the fuel pump.
Tip....a lot of relays are the same in the relay center....switch the fuel pump relay for one of the (same) others to test it if needed.

Before you do this....sit in the car and turn on the key to run.....not start.......do you hear the pump do it's prime cycle?
Total silence means.......in 99% of cases...a new fuel pump is needed.
If you hear it.......no pump should be needed....look elsewhere first.

Aug 10, 2009 | 1991 Oldsmobile Cutlass Supreme

1 Answer

Could this be a cold start problem


defective fuel pump the check valve is allowing it to lose prime replace fuel pump.

May 28, 2009 | 1996 Chevrolet Blazer

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