Question about 1988 Ford Mustang

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My 1988 2.3 liter mustang will not start after sitting overnight

Car sits overnight and will not start in the morning without using starting fluid after that starts fine until it sits again for a few hours this problem happened suddenly car was running fine when I turned it off one night and in the morning the problem started I don't know where to start to diagnose the problem and can not afford to spend a lot of money.

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  • 7 Answers

Being that this vehicle is a 1988 it is most likely still using an electric choke. When your vehicle is cold (even just not warm enough) it needs a richer fuel/air mixture to start which is what the choke is there for. When you turn the key the choke will automatically shut so the suction from the engine will pull fuel from all circuits of the carb. Anyways.. long story short for some reason it would seem your choke isnt closing as it should. This is generally just a hot wire thats connected to your carb.... maybe a short maybe its stuck open for some reason.. idk but that is where you should focus your attention. Hope this helps.

Posted on Dec 27, 2013

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Posted on Jan 02, 2017

  • 95 Answers

SOURCE: 1985 diesel after sitting overnight will not start

The check valve is a small brass fitting where the return line attaches to the filter head. I believe it takes a 7/16" wrench. There is a 'duck bill' inside that prevents fuel from leaking back to the tank causing air in the system. It should allow flow in only on direction. Some times you can see light through it if it's bad enough. Also, the lines between the injectors can dry out and start to leak air. Air will leak in before fuel leaks out, and you won't see it. There are plastic, cup-shaped connectors for these hoses that press onto the top of each injector. They are sealed by two o-rings on each injector body where it meets the connector. These o-rings can dry out and also leak air and fuel. Your Ford dealer or diesel service professional should have the proper o-rings. Any other o-rings might not seal, as they won't be the exact size. You already changed the fuel solenoid when you replaced the pump. It is inside. There has to be battery cranking voltage to it while cranking, and battery voltage with key in 'on' position. The wire attaches to the top of the pump. This is not likely to be the problem, since it restarts every 2 hours.

Posted on Jan 11, 2009

jaysonemanme
  • 500 Answers

SOURCE: 2004 mustang fuel pump issue, start car runs for a

sounds like the fuel pump is getting tired

Posted on Sep 11, 2011

skychief2001
  • 21873 Answers

SOURCE: Ford explorer starting problems

Has anyone checked base fuel pressure before and after the engine is first started ?

Posted on Apr 28, 2013

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