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Old 10-07-2010, 17:02   #1 (permalink)
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93 GT running hesitates, getting worse

My 93 GT started with an occasional shudder upon accelerating from a slow down, like rounding a corner. Then it got worse. Now, when accelerating, it hesitates and bucks badly. It runs better once up to speeed, but I can still feel it hestitating.

I thought it was the clutch going bad, so took it to a dealer. They said it wasn't the clutch, but was in the ignition. They put in a new set of plug wires, 'cause they said there was shorting. That didn't fix it.

They said they found a vacuum host leak. That didn't fix it.

They said it was my NGK spark plugs. I told them I had run NGK's for 10 years without a problem.

The disty is a rebuild, 2 years ago, with a new cap.

Any ideas?
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Old 10-07-2010, 19:48   #2 (permalink)
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Re: 93 GT running hesitates, getting worse

Try this and see what codes it may have. Ford Fuel Injection How To Run a Self-Test
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Old 10-08-2010, 19:01   #3 (permalink)
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Re: 93 GT running hesitates, getting worse

We had a similar issues after some new leads; check to make sure all the connections are seated properly on the plugs.
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Old 10-18-2010, 14:31   #4 (permalink)
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Re: 93 GT running hesitates, getting worse

Turned out to be the distributor, a rebuild from 3 years ago. I had kept the original and changed that from process of elimination.
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Old 10-18-2010, 20:18   #5 (permalink)
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Re: 93 GT running hesitates, getting worse

Glad you got it fixed. Thanks for the update.
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