Join Date: Oct 2019
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White smoke when grid heater cycles
So I’m trying to figure out what’s going on with my truck, it all started a few weeeks ago when I noticed white smoke on start up from the exhaust after some diagnosis and research I put a set of stock reman industrial injection injectors in it and just to my luck it didn’t seem to change much, all injectors seem to be firing correctly when I shoot the exhaust ports with a thermometer, the original injectors had 205,000 on em and I’m sure needed replaced so I’m not to bummed I put a new set in.
At the same time I put a new Cummins FCA in the truck and drained all fuel in entire fuel system new fuel filters and cleaned the tank which was almost spotless already.
So when I start the truck it smokes when the grid heater cycles on so I dissconnected the grid heater and it still smokes at idle until the voltage increases or I hold it around 1000 rpm and once the voltage comes up it runs and drives fine only code it threw was for the grid heater being disconnected.
So I order a new Cummins grid heater, relays and gaskets, I put them on and the first couple start ups it didn’t smoke and even kicked into high idle by itself then I went to start it up yesterday morning and it was doing the same thing so I removed all the wires for the gridheater system and inspected them all and they all seemed good I then went crazy with cleaning every connection and bolt even more then I already had still didn’t fix it.
I’m beating my head against a wall with this thing and I need it for work I’m 19 and travel the country for work so I don’t have all the money in the world to throw at it truck is pretty much bone stock except for intake horn, banks intercooler, electric fans, airdog 165. And the previous owner put a brand new stock turbo on it not too long before I bought it, the turbo feels tight and doesn’t make any funny noises on spool up.
And there’s no delay on start up it always fires right up even with the grid heater disconnected and up here in New England it’s already hitting lows 20s high teens at night
I need help any advice would be greatly appreciated