Why does truck run very rough on 1st start up and after warming up then run fine?

Asked by Michael Mar 28, 2014 at 02:15 PM about the 2001 Dodge RAM 1500 ST LB 4WD

Question type: Maintenance & Repair

1st start in morning truck runs very rough. Can't drive until it warms up at least for 10
minutes. If you press accelarator valve tap and truck shutters. Then all of a sudden it
starts to purr and then runs great the rest of the day. ????? Just had complete tune up.

1 Answer
10

Eldamatic answered 10 years ago

Same issue on mine. If I pump the accelerator pedal it will hold rpms.

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