Miss/smoke on cold start NOT injectors

No_Cash · 07-01-2009, 05:12 PM

My truck seems to have a miss almost always with white smoke when it starts up with the engine cold. It doesn't do it every time but the majority of the time. Truck runs great and starts great warm.

Injectors are new. FCA is new and I tried a friends. Overflow valve is new, and I also tried swapping rail pressure sensors with a different truck. Fuel filter is relatively new. I've done several return test and get about 60ml of injector return and 700 pump return 1 min at idle, though I haven't checked it since doing the overflow valve. Pressure relief doesn't leak at idle or wot. No codes and about 8psi supply pressure. Also adjusted the valves fairly recently.

Any thoughts? This thing is really frustrating me.

***lakelife79*** · 07-01-2009, 05:23 PM

Sorry, but it sounds like you still have an injector acting up. Who did you get your injectors from?

No_Cash · 07-01-2009, 05:28 PM

bought them from the local fuel shop, any idea how to tell which one? If I pop them out and get them tested do you think it will show up on the bench?

Also I use Stanadyne performance formula in every tank.

**SOUTHERN SMOKE** · 07-01-2009, 05:31 PM

yes it will show up on a bench test, our injectors are electronic, so it can never hurt to have them flow tested, your getting the white smoke from an injector leaking down into the bowl, and possibly the miss from one not firing, etc... check the oil see if it has been diluted thin, and smells like diesel fuel...

***lakelife79*** · 07-01-2009, 05:32 PM

Well if you know someone with a scantool or dodge tech that has access to a starscan you could cut out one injector at a time to see if you notice one injector is making the truck run different. Other than that you probably will have to pull them and send them to be tested. Were they new or remans? I have had several sets of remans in my old truck and never had one set turn-out right.

No_Cash · 07-01-2009, 05:37 PM

Bosch reman so made in Brazil, I can get access to a DRB once and a while anything else to look for?

I'll check the oil.

No_Cash · 07-02-2009, 07:56 PM

Oil seemed fine. I switched back to my FCA and rail sensor today and decided to have another look at the relief and sure enough it is just pouring out at idle. It didn't before though the banjo was wet the first time I looked at it(after I did the injectors) but wasn't leaking at the time. I got a new one on the way if it doesn't fix it I pulling the injectors, getting them tested and checking the compression.

So are dodges really this ****ty? I have only owned mine for 3 months and it only has 80,000kms(about 50,000miles) on it and I have spent by far more on repairs then any other vehicle I have owned. Everything but the overflow was justified. I am sick of it.

Revolution · 07-02-2009, 09:26 PM

i got the same problem to. and cant figure it out at all. i hope it isnt injectors

***lakelife79*** · 07-06-2009, 12:27 PM

Well some of them are money pits. Just like anything else there are some bad ones. I had an 06 that was a pain in my butt and spent lots of money on it. Had three sets of injectors in it and then sold it. I bought it used with 17k on it. I am weary of used trucks now.