99 Suburban Starts Rough When Cold

Volume 1 Issue 2 - 6.2/6.5 Issues and Answers

Our 1999 Suburban has been a great family car and it has always run well, except for the PMD problem (now fixed). It has 175K miles on it. The problem we are having now is that it does not start well the first time each day. It starts quickly but then shakes, misses and smokes for about 10-15 seconds. Then suddenly, it will straighten up, run smooth and the smoking stops. The local dealer shop told us it needed a new fuel injection pump, but I am not convinced. What should we do?


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