Question about 1998 Pontiac Grand Prix
There are 2 things that usually case a car to die after taking your foot off the gas.
1. A broken vacuum hose / line / serious vacuum leak in a gasket or manifold.
2. An EGR valve that is sticking open due to carbon deposit buildup inside the passages of the valve.
There can be other causes but these are the 2 most common.
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Posted on May 13, 2010
Have a look at the throttle position sensor, iac(idle air controler and the egr valve
Posted on May 12, 2010
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Posted on Jan 02, 2017
seems a simple job a restricted throttle body, just have to remove it spray some injector cleaner and done .notice there is a small hole that get clogged for which the engine get it air to idle clean it that should do it.
Posted on Feb 23, 2010
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