Just changed the engine in my truck it runs great, starts and idles normally. But once in awhile it stumbles and surges well driving at 1200-1400 RPM and sometimes does that in slow reverse to. No engine light on for the time being and there was no DTC showing up, but the last time the light went on I put a DTC to it and got a fuel system to lean kinda reading. Any suggestions?
have the same problem?
Wednesday, July 29th, 2015 AT 5:39 PM