Has anyone else had this problem with their truck sometimes it takes longer to start than others , most of the time she hardley turns over and starts but other times she winds ofer a lot before starting, Thanks for any input or help you may have James

 

could be a leaky injector...get it checked out before it leaves you stranded.

 

I have the same issue and there's other's on here as well... I can't seem to locate the thread about it though! I think there is actually a TSB out on it now! It's somewhere on here!


Tony

 

Oops....yes there is.........SYMPTOM/CONDITIONS:
The vehicle operator may experience extended engine crank time in cold ambient temperatures on vehicle equipped with manual transmissions.
This Flash also provides the following enhancements:
· Improved Automatic Transmission shifting
· Engine fan is activated if the coolant temperature sensor fails
· Enhanced battery charging

 

Mine seems to crank longer when the engine is warm, starts up quick when shes cold.

 

Mine cranks fine most of the time but about once or twice a month it will crank over for about 5 seconds before it fires. I was told it was normal. Our FedEx delivery guy got a new delivery truck that has a common rail cummins in it and I asked him if it ever takes a while to crank. He said watch this. It cranked for about 10 seconds and fired up. I just thought mine was bad. That delivery truck did that every time to.

 

It never does it on cold starts, it always been warm after the engine has been ran awhile

 

I just had the TSB done to mine yesterday and I think it made a difference in fact I know it did on the shifting it now shifts very smooth and the overhead MPG went up as well from what I was getting before the flash.

TSB number is 18-003-06

JIM

 

I had mine done also. Havn't had a chance to check the mpg yet. I also never had the hard starting issue. The one thing that i can tell you is the trans. shifting is alot smoother. If you think yours shifts to firm. Get this done and you will be happy.

 

I have noticed the slow starting sometimes too, mine is once the engine is warmed up?? Also getting crappy mileage so far (only 825 miles), haven't seen 13 mpg yet??? Should i be worried, that is part of the reason i bought this truck because everybody claiming to get 20mph??

 

My truck is sucking in the mpg section also I am getting 10.7 1100 miles I hope it gets better

 

Hmm. I got 15.8 on my first tank. Im on my second and i can tell its gonna be better than the first.

 

The 06's seem to have a big difference in MPG from truck to truck even with the same set up. My observation from reading the posts is it seems to be timing related. Guys that have the lowest MPG seem to have the best luck with the RokkTech mod or tone ring mod. Also with the tone ring mod you don't necessarily need to actually mod it to get an improvement. Simply loosen the 4 bolts holding it on and rotate the tone ring as far clockwise (looking at the engine) as it will go. retighten bolts to 30 ft/lbs plus 60 degrees and you may see a gain in MPG , low end torque and the other benefits others are reporting. Personally I have installed the Rokktech and seen a slight increase in MPG and it has smoothed the power spike some, when the weather gets better I will be doing the tone ring mod. Was seeing avg MPG before rokktech of 12.4 now 13.6 at 4600 miles. Ohh yeah my truck cranks alot long when warmed up, sometimes even have to let off and hit it a second time.

 

im getting 21.3 at 18100. was low till about 6000 miles then started going up

 

mine takes a while to crank to sometimes and other times it cranks right up. but think i got an injector going out