Question about 1986 Nissan King Cab

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I have a 1986 D-21 Nissan SE that would not idle properly it would idle from 700 to 1100 rpm, and when you drive it sometimes it runs good for awhile and then you come to a stop light and the truck stalls. It has new spark plugs, new wires, new cap, new injectors, I just cant figure this out, one thing I notice is when the car is idling rough from 700 to 1100 rpm it seems like it has a vacuum leak, when I spray carb. cleaner around the throttle body the rpm picks up right away, I changed all my hoses too can it be the throttle body it self ? I hope you can help me . Thanks.

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Sounds like a vacuum leak around the throttle body. i would try replacing it with an identical used one.

Posted on Nov 06, 2010

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