Chevy Silverado and GMC Sierra Forum banner

Engine start problems 2011 Sierra SLE

22K views 36 replies 16 participants last post by  talon118  
chevymike74 said:
I took mine in the shop the other day to be checked out, the computer is showing alcohol percentage of 69%. I use only BP gas in my truck. They are getting a tool to measure the alcohol in my fuel before they reset the computer to make sure, that's what GM said to do.
BP is your problem. Start using someone else. unfortunately BP adds a lot of alcohol to their gas to make it "cheaper". Ive seen a lot of people ruin their engines because of BP gas. Especially if they are not tuned for say E85 (from what I understand the alcohol they use is different than E85). If I remember correctly its from the lack of lubrication that alcohol gives. So your truck is probably correct in the amount of alcohol you have in your gas. Stay away from BP.

as for seafoam use.... Use it every other tank not 30-35k miles or at least once a month. Seafoam eats all the carbon. I don't use it as I DO run E85 in my truck (only problem starting is on really really cold nights). I also use seafoam before any oil change as it helps get all the crap out of the oil (running e85 has eliminated that problem for me).
 
LOL that would be excessive... Most people use a tank of gas a week. Me im not most people in that if my kids don't have something going on (like all im doing is driving back and forth to work) I can go 2 weeks on a tank of gas. If my kids are in session (which they are all but 1 month out of the year darn travel sports) then its a tank of gas a week sometimes a tank and a half.

When I had the motorcycle I used seafoam once a month. Miss my bike. had to fill her up every 4 days but a tank of gas on that thing used to be $8. Today it would be $3.
 
stocksilverado25 said:
There's still wires going from the coil pack to the plug. Last I checked there still calling them spark plug wires lol. I could be wrong if I am show me proof and I will change my wording from now on. And yes they "can" go 150000 miles but come on man. Do you seriously think there burning just as efficiently and as hot as they did on day onE.

Yea sure these plugs hav 150000miles on them my truck still runs. Drives straight down the road. Starts every day. So my plugs must be in good enough shape that I should not spend the 9$ a piece and replace the plugs. Nope there good
what part of my post says "your truck runs good until 150k on those spark plugs"? My point was they run all the time over 100k and still function. I replaced my wifes spark plugs (not coil packs) at 106K. Not because I wanted to wait that long but because I am not exactly someone that has all kinds of time to do things. There was no noticeable difference in how the thing drives.

They don't have spark plug wires. Its called a spark plug and coil pack. The wires going to the coil pack are just normal electrical wire.

http://www.ebay.com/itm/like/1814219055 ... ps&lpid=82

The link is for reference only. This is what most newer vehicles now have.