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91 mustang 5.0 timing

2050 Views 6 Replies 6 Participants Last post by  Smurf stang
im having a timing isue with my car when i put a timing light on the marks at an idle the mark bounces all over the placebutwhen i rev the motor up and keepthe rpmsup the mork shows perfect right were it is supposed to be and at an idle the car wants to die on me any help would be great and i have all ready changed the timing chain
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Did you remove the spout connector? It is located on the end of an electrical connection hanging from your distributor. It's a small plastic piece. You have to pull it off before setting the timing, then put it back on after setting timing.
If you already did, I'm not sure of your issue. Like said, perhaps vacuum?
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