Catalytic Convertor Problems of GMC Sierra

GMC Sierra owners have reported 1 problem related to catalytic convertor (under the engine and engine cooling category). The most recently reported issues are listed below.

1 Catalytic Convertor problem of the 1999 GMC Sierra

Failure Date: 01/10/2003

Fuel pump will over heat and than short out. Exhaust always rattles engine knocks cat. Converters went out digital display stopped working.

See all problems of the 1999 GMC Sierra 🔎.

Other Common Engine And Engine Cooling related problems of GMC Sierra

Problem Category	Number of Problems
Engine And Engine Cooling problems	50
Gasoline Engine problems	19
Car Stall problems	17
Check Engine Light On problems	15
Engine Cooling System problems	15
Engine Exhaust System problems	14
Manifold/header/muffler/tail Pipe problems	13
Engine problems	12
Gas Recirculation Valve (egr Valve) problems	9
Diesel Engine problems	8

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