Question about 1994 Mercury Cougar

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1994 Mercury Cougar idles good but sputters when given gas.

It's a 94 Cougar with the 4.6 engine. It idles right, but sputters when I give it gas. It isn't like a dead miss but more like running out of gas or not getting enough spark. What should I be looking for?
Thanks, Scott

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  • Sammie Moore Sr
    Sammie Moore Sr May 13, 2009

    I REPLACED THE FUEL PRESSURE REGULATOR,AND THE FUEL PUMP OM MY 94 COUGAR. IT NOW STARTS ,BUT WILL ONLY RUN A FEW SECONDS(5/8).

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Vacuum leaks,Use carby cleaner sprayed lightly around suspect areas like injector seals engine will react and pin point a leak.H/T leads could be tracking or breaking down.Plugs may require replacement.Injectors could be dirty,try can of injector cleaner next time you fill the vehicle up.Is the air box and lid securely fastened and intake tube to throttle body leak free with no holes etc?There are a number of things it could be and tried to cover a few of them as its hard to imagine engine condition etc.Check that advance/****** can on distributor is functioning correctly(not leaking)Could also be air flow meter anyway let me know how you go Good luck

Posted on Nov 17, 2008

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