Engine runs fine when it's cold, after it warms.

Tiny
DKEITHM
  • 1991 FORD THUNDERBIRD
  • 140,000 MILES

Engine runs fine when it's cold, after it warms up it starts to run badly and the engine light comes on and it has a small backfire and no power.

I've changed the plugs, wires, ignition control module, cap, rotor, coil.

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Thursday, December 6th, 2012 AT 9:30 PM

1 Reply

Tiny
JDL
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  • 16,281 POSTS

The 02 sensors are part of a tune-up. The coolant temp sensor can cause some temp related issues. Check engine light coming On-scan the computer for code/s this is your starting point of diagnosis-then comeback with the code/s if any present-

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Thursday, December 6th, 2012 AT 9:38 PM

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