Thread: 06 gp not firing on 2-4-6 cyl

sugars not really has bad as one thinks on a car. Usually run bad for a tank or 2 of gas. Bleach is by far worse on a car. And will take out a motor usually.

I think your miss fire issue is unrelated. the ignition control modual on these cars are hit and miss on reliability. Most anyone can test them for free.

OK, if nobody else is going to, I'll bring up the worst case scenario. It seems odd to me that the 3 cylinders that are misfiring are the entire right bank, if your fuel filter failed, maybe some sugar got by and plugged up your fuel rail?

Sugar doesn't really dissolve in gasoline, so it would stay in granular form if it made it that far, which it shouldn't since the filter should catch it. Thinking about it more, though, on the L36 the fuel goes to the rear bank first (L67 goes to the front bank first, which is what I was thinking of), so that's probably not the issue, unless just enough got by to clog the rear injectors and not get up to the front bank. That's an extreme long shot.

I would guess the problem isn't related to the sugar incident at all, as has already been said, just trying to figure out how what would tie the entire right bank together.

I thought the '04+ GP's had a returnless fuel system?

update, sorry it took so long i work strange hours. when i first checked the engine i removed the spark plug wires at the coil pack one at a time and the even cyl. did not make a difference when i removed them but there was spark at the coil pack. the motor did sound like it has a lot of lifter noise so i removed the front valve cover and have verry little oil ozzing out of 4 of the 6 push rods. i am 99% shure i have a oil pressure problem causing the lifters to make noise. the idiot light is not coming on for the oil pressure. what is my next step? pull the pan and check the pick up screen? try a new oil filter? by the way my son did have the last oil change at a oil lube shop 1000 miles ago and the oil level in ok.

Originally Posted by bluegtp91

I thought the '04+ GP's had a returnless fuel system?

Good point, I totally missed the "06" in the title. I don't know how the rails are set up, then.

You can put B12 /seafoam or any other brand in your oill. This will thin it out and hopefully loosen a clog if you have one. Follow then instructions on the can. You don't leave it in the oil long before you flush it.

Originally Posted by Scimmia

Good point, I totally missed the "06" in the title. I don't know how the rails are set up, then.

Well after working on Riley's car I noticed how the Comp G's rails kinda look like the L36 rails...only one line going across the blower. I had a misfire just like that...it was a stuck valve. Not sure if it is exactly the same issue but if it is you can pull off the rear valve cover...lean the motor forward...remove the rockers and pushrods...and beat on the top of the valve spring retainers with a rubber mallet. You might know them loose or seat the valve all the way...at least that is what cured my issue...

Brown Syrup? GOO? Sounds like you might have more issues...might be needing another motor...

man i would beat somebodys ass for doing that ****. act of coward. i bet the sugar got to the piston rings and ruined them. did you happen to try a compression test before you took the heads off?