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Why would a 96 Tahoe start good cold but not when it is warm you smell fuel bad you have done a tune up and replaced map sensor ecm and it pulls miss fire code and wont reset?
Wiki User
∙ 12y ago
Keep in mind the #1 problem with these vehicles is fuel pumps. As the fuel pump gets weak it can still allow the car to run but, it will have starting problems like you mentioned. Have the pressure tested.
Sounds like broken fuel pressure regulator. it is loccated on driver side of engine with vacuum hose to it and a clamp similar to ac hose connector clamp. If diaphragm is broken in this regulator it will allow raw gas to "flood the engine" when the engine is warm. When the engine has time to cool, the extra gas evaporates.
Wiki User
∙ 12y ago
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