Question about 1989 Pontiac Grand Prix
Grand Prix ... my fave, too.
It is the "accelerator pump" on the carb; or rather the rubber diaphragm inside the accelerator pump.
The pump "arm" is visible on the top-front of the carb. Maybe the arm got loose or disconnected, but it's most likely the diaphragm inside.
The accelerator pump squirts extra gas when you stomp it.... while the fuel pump tries to keep up, but can't...
Maybe $10 at any auto parts store...
Posted on Sep 09, 2009
Testimonial: "Thanks for the suggestion, but my 89 Crand prix is equiped with a throttle body,it don't have a carb."
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Posted on Jan 02, 2017
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