Car starts and dies

Tiny
OLIVER STARKWEATHER
  • MEMBER
  • 1986 FORD THUNDERBIRD
  • 100,000 MILES
Will run if given enough gas at start up. Runs if I remove 2 spark plugs not clogged catalytic converter, removed catalytic converter
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Monday, January 23rd, 2012 AT 8:12 PM

6 Replies

Tiny
RIVERMIKERAT
  • MEMBER
"if given enough gas". What does that mean? If you pour gas into the air cleaner housing? Or if you hold the pedal to the floor?
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Monday, January 23rd, 2012 AT 8:25 PM
Tiny
OLIVER STARKWEATHER
  • MEMBER
If I push the pedal to the floor when I turn it over it keeps running when I let up it stalls. The car has fuel injectors and it is impossible to pour gas into the system.I guess what it doesnt do is idle. But then why does it run when I remove 2 plugs? The last time this happened it was the catalytic converter clogging up. That is not the problem this time.
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Monday, January 23rd, 2012 AT 10:45 PM
Tiny
RIVERMIKERAT
  • MEMBER
Check the spark on those 2 plugs. Check compression all around.

Fuel injection: Pushing the pedal to the floor means opening an air valve, not adding gas, or "giving it gas."

Check fuel pressure. Check to see if the injectors are being pulsed or they're staying energized. Check for vacuum leaks.
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Monday, January 23rd, 2012 AT 11:18 PM
Tiny
OLIVER STARKWEATHER
  • MEMBER
Its not the plugs. It will run if I put the pedal to the floor, or if I remove 2 plugs. If I only remove 1 plug it runs better but not that well. If your catalytic converter clogs up you ca nremove 2 plugs and the car will run.I removed the catalytic converter so thats not the problem. My guess is that removing the plugs lets air into the intake manifold.
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Tuesday, January 24th, 2012 AT 2:42 PM
Tiny
RIVERMIKERAT
  • MEMBER
Removing the plugs lets air into those 2 cylinders only. A plugged catalytic converter will normally only affect driving performance, not starting.

You need to determine WHY it wants to start when you remove 2 plugs. Does it matter which 2, or any 2? Have all of the plug wires been removed recently?

Which engine does this car have?
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Tuesday, January 24th, 2012 AT 7:47 PM
Tiny
HARRISOK
  • MEMBER
Mine did that. So I replaced the ignition module. Ran even since
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Wednesday, February 8th, 2012 AT 1:42 AM

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