99 Mercury Cougar no start?

Tiny
72GUY
  • MEMBER
  • 1999 MERCURY COUGAR
Replaced fuel pump alternator battery and spark, plugs good fuel pressure in the fuel rail. Cars getting spark engine and cranking fine so starter is good but the car still wont run
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No
Saturday, April 28th, 2012 AT 10:33 PM

10 Replies

Tiny
ASEMASTER6371
  • EXPERT
Fuel, spark and compression are required to start. One of them is missing. You say you have spark. Good, now you need to measure the fuel pressure. Should be around 40+ lbs.

Roy
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Saturday, April 28th, 2012 AT 10:35 PM
Tiny
72GUY
  • MEMBER
Have all 3 of those the car still doesnt start that is the problem
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Saturday, April 28th, 2012 AT 11:10 PM
Tiny
ASEMASTER6371
  • EXPERT
Maybe it is flooded. What is the compression and fuel pressure

Roy
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Saturday, April 28th, 2012 AT 11:17 PM
Tiny
72GUY
  • MEMBER
Its almost as though there is fuel through the rail the injectors arent opening
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Saturday, April 28th, 2012 AT 11:19 PM
Tiny
ASEMASTER6371
  • EXPERT
Almost? You need to measure the fuel pressure. Try sparying carb cleaner into the air filter and see if the motor fires up for a few seconds.

Roy
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Saturday, April 28th, 2012 AT 11:25 PM
Tiny
72GUY
  • MEMBER
Already did with starter fluid
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Saturday, April 28th, 2012 AT 11:27 PM
Tiny
ASEMASTER6371
  • EXPERT
And? Did it start
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Saturday, April 28th, 2012 AT 11:30 PM
Tiny
72GUY
  • MEMBER
Yes
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Saturday, April 28th, 2012 AT 11:33 PM
Tiny
ASEMASTER6371
  • EXPERT
Ok, I bet you have a failed fuel pump. It may not have enough pressure to start it.

Check the inertia switch as well. It may be in the trunk behind a door clearly marked or it is behind the right front kick panel in front of the passenger door.

Roy
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Saturday, April 28th, 2012 AT 11:35 PM
Tiny
72GUY
  • MEMBER
Have fuel pressure up to 40 psi but having an issue where I have to pump it up by turning the key on and off or wiggeling the relay so the pump goes on and off also was wondering what the five wires are on the plug for the pump boot
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Monday, April 30th, 2012 AT 10:56 PM

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