Question about 1990 Dodge Dynasty

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Turns over then stalls out

Put new fuel pump on it but will not stay running...

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  • 74 Answers

Shorted alternater will cause automatic shut down relay to shut down unplug alternater from circuit see if fixed

Posted on Aug 26, 2008

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Either you made a mistake when putting in the fuel pump on or you might just have air in the system or bad fuel pump relay

Posted on Aug 26, 2008

6 Suggested Answers

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SOURCE: stalls after it runs awhile,

I had this problem with my 2001 Pontiac Sunfire, I ended up having to replace to torque converter. And that fixed it.

Posted on Sep 17, 2008

  • 52 Answers

SOURCE: won't stay running

Well first i domt think this vehicle is carburated it is fuel injected anywho may be a vacume leak check aLL hoses for cracks or any that are unattached then i would check the idle control valve or(IAC)_may be stuck try spraying throttle cleaner and swabbing out the throttle body

Posted on Apr 30, 2009

lastech
  • 408 Answers

SOURCE: STALLING PROBLEM TURNED INTO NO START 1990 MB 300 SL

hello,good day,first we are in fuel side,better to install a fuel gauge,to determine the right pressure, is not mention your fuel pump relay,this should also check,some occasion the power supply is missing,now if all is in order (fuel side) then your switching unit(transistor box) need tobe check,assuming your engine is 103 engine,ty

Posted on May 19, 2009

dennymulford
  • 1055 Answers

SOURCE: 1998 GMC Sierra- runs rough then stalls when

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Posted on Jun 06, 2009

mlapres
  • 757 Answers

SOURCE: I have a 1997 Pontiac Grand Prix GTP. Recently put

If you replaced the fuel pump then there is a possibility that during the job then some debris from the tank and/or filter got loose somewhere into the fuel system and is in your lines. It could even be a very tiny speck of gasket material, old or new.

Posted on Jun 20, 2009

  • 1 Answer

SOURCE: 93 yukon 350 wont stay running at idle

mine was doing the same. throttle positioning sensor was the prob.

Posted on Jul 27, 2009

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1 Answer

Put on new fuel pump got pressuer but want stay cranked


Your post is lacking any detail. However, if you are stating that the engine starts after being cranked but dies out (wont stay running) there are 2 ways the fuel pump is activated. When the key is first turned on, there is a 5 second fuel pump run (the ECM energizes the fuel pump relay). After the engine starts, the fuel pump relay will only stay energized when the oil pressure switch closes keeping the fuel pump relay on (oil pressure is above 5-7 psi). If the oil pressure switch is faulty or there is no oil pressure, the engine will stall just after starting.

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It could be the pump but you need to verify if you can hear the pump running after it stalls and you turn the key back on to try and start it. If you don't hear it it isn't running.
The pump is inside the tank but it dosen't come inside, you need to put it in there. That requires removing the tank. On a 90, there is a filter mounted on the chassis near the left rear tire. I'd replace that first as if you replace the pump, that should be replaced as well and if it's plugged up it may in fact be the only problem.

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ARE YOU SURE THE FUEL PUMP STAYS RUNNING.
FUEL PUMP FAILURE IS VERY COMMON FOR OLDER FORDS.

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1998 GMC Sierra- runs rough then stalls when


had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Jun 04, 2009 | 1998 GMC Sierra

1 Answer

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