Hard starting

Tiny
BUCKHUNTER
  • MEMBER
  • 1983 LINCOLN MARK VI
  • V8
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
Sometimes it will start right up and run fine, but most times it will not start till I put gas in throttle body, once it starts it runs fine, I checked for fuel pressure at the fuel pressure relief valve and the gas hits the fender when I push in steam, I ture over and pressure is right back up, I unhook fuel line at filter turn on key and pumps gas big time, so I think what I need to know is WHAT TELLS THE INJECTOR TO SPRAY THAT FIRST SHOT OF FUEL TO START THE CAR, no I am not just driveing a old cluncker, the car is like new last full size two door made by lincoln, I only use it mabie 1000 a year, so please try and help PLEASE, Thanks for your time eather way.
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Wednesday, March 12th, 2008 AT 6:27 PM

13 Replies

Tiny
BLACKOP555
  • EXPERT
Hello,

This sounds like you have a weak fuel pump not priming the system here are two guides to help us get started.

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

and

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please run down these guides and report back

Cheers
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Wednesday, March 12th, 2008 AT 8:40 PM
Tiny
BUCKHUNTER
  • MEMBER
If I put fuel in the throttle body it will start and I drive it all around the yard till it is hot, turn it off and it will not start unless I add fuel by hand.
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Friday, March 14th, 2008 AT 9:48 AM
Tiny
PGPETERG
  • MEMBER
When you attempt to start the car cold, if you cycle the key to the run position 4 or 5 times, will the car start then? If so, the pressure is being lost after shutdown and I think it is either a bad injector or fuel pump(in the tank) The fuel pressure needs to be 39psi at the rail. Aside from that I bought a book called "How to tune and modify ford fuel injection" the first edition covers the eec III and eec IV fuel injection systems thoroughly. It should be all you need to get her up and running. Good luck.
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Thursday, March 27th, 2008 AT 10:13 PM
Tiny
BUCKHUNTER
  • MEMBER
Thank You PG, I have already put the new fuel pump in the tank, and I have tryed the off and on of the key, that will not do it, and I have pushed the pressure vale before trying to start it to see if it was loseing its pressure from sitting and it was there, I weill try to get the books you said, is there a way to check the injector, also it is notthing to do with a cold start thing as I can put fuel in thorttle body start it drive all around the yard, passing gear everything works fine, now warmed up shut it off try to start it right back up and will not start until I put fuel in the throttle body, LOL I just don t get it.
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Friday, March 28th, 2008 AT 9:08 AM
Tiny
OZZYOSBOURNE1999
  • MEMBER
I had the same problem with my 1983 lincoln contental valentino. It was the inline fuel pump. These lincolns have 2 fuel pumps, one in the tank and one inline just b/f the fuel filter. Try changing that one if you havent already and see what that does. Mine was doing the same thing, or it would start but if youd give it gas it would die. Bad ford design is my theory. But what do I know
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Monday, March 31st, 2008 AT 5:04 PM
Tiny
BUCKHUNTER
  • MEMBER
I have changed the fuel filter that is on the fram on the right side near the rear, is that the one you mean? As I sure did not see anything else on the fram, and I just looked at the book and it only showed the one in the tank, I can t go check now as it is dark and wet out so I will get under there after work, but that is the filter you are talking about, right side on fram just ahead of the rear tire. Well Thanks for your time
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Monday, March 31st, 2008 AT 5:20 PM
Tiny
BUCKHUNTER
  • MEMBER
See here, they say ONE fuel pump? I looked could not see # 2,
Description and Operation
Ford Full-Size Cars 1968-1988 Repair Guide

Central Fuel Injection (CFI) is a throttle body injection system in which two fuel injectors are mounted in a common throttle body.

Fuel is supplied from the fuel tank by a high pressure, in-tank fuel pump. The fuel passes through a filter and is sent to the throttle body where a regulator keeps the fuel delivery pressure at a constant 39 psi (265 kPa). The two fuel injectors are mounted vertically above the throttle plates and are connected in line with the fuel pressure regulator. Excess fuel supplied by the pump, but not needed by the engine, is returned to the fuel tank by a steel fuel return line.

The fuel injection system is linked with and controlled by the Electronic Engine Control (EEC) system.
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Tuesday, April 1st, 2008 AT 9:01 AM
Tiny
BUCKHUNTER
  • MEMBER
It was the fuel pump in the tank I found I had some bad gas as well all fixed! I love this site.
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Tuesday, April 1st, 2008 AT 4:43 PM
Tiny
TONYT2323
  • MEMBER
  • 1983 LINCOLN MARK VI
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Car ran fine. Until I changed the battery and accidently put it in backwards.I burnt a couple of fuses but have changed them. The car turns over but will not start. Have tried to trace the wiring and seem to be getting no spark coming from my coil.I cant seem to figure out why it wont turn over
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Tuesday, October 9th, 2018 AT 12:35 PM (Merged)
Tiny
RASMATAZ
  • MEMBER
No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor /distributor pick-up coil, ignition control module, ECM, Ignitor camshaft and crankshaft sensors and computer. Note: If it doesn't apply disregard it
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Tuesday, October 9th, 2018 AT 12:35 PM (Merged)
Tiny
BUCKHUNTER
  • MEMBER
  • 1983 LINCOLN MARK VI
  • V8
  • 2WD
  • AUTOMATIC
  • 123,000 MILES
When you first go out it will start right up and run fine, but after you run it awile turn it off then try to start it, it turns fine but will not start till it has set agood wile to be cold again, then it will start, it has the fuel pump in tank, I changed that, also the weather has no bearing on it, Thanks.
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Tuesday, October 9th, 2018 AT 12:35 PM (Merged)
Tiny
TCRON
  • MEMBER
Check the connection to the coil.
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Tuesday, October 9th, 2018 AT 12:35 PM (Merged)
Tiny
FIXITMR
  • MEMBER
Did you resolve? Have you tried pushing down on gas pedal even all the way to floor and holding to see if it starts?
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Tuesday, October 9th, 2018 AT 12:35 PM (Merged)

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