Coil went out at high rpm car backfired and will not start
#1
Coil went out at high rpm car backfired and will not start (injuneer or shoebox?)
I have the car in my sig. I was in the gas and the car back fired ran like poop for 1/2 mile, then died. Wouldn't restart, discovered the coil died and had no spark. I replaced the coil have spark and it will not start. seems like it wants to backfire when I stop cranking it over. Also smells real rich out tails. Please help! Pulled one plug looked good not fouled.
Last edited by remaxracer45; 10-22-2009 at 10:36 AM.
#6
seems to be plenty fuel and I have pulled 4 of the 8 plugs and they seem fine. will pull the other 4 soon. its a pain to do a compression test on these so thats my last resort. why would I have bad compression. I don't suspect any piston or ring damage as it wasn't smoking when it finally died
#11
when the car backfired it is posible it damaged the MAF , or created a large air leak from the throttle body to the maf,,, check the tube from t/b to maf, and try another maf( the maf is the same as any 4.8, 5.3, 6.0L silverado / GMC truck 1999 and newer)
Last edited by jay_lt4; 10-23-2009 at 09:22 PM.
#13
#14
I had the elbow off its a coated trickflow and I didn't see any thing inside, I will try a diferent maf the guy that has my old 97 will let me borrow it. I did for ****s check the fuel pressure 40 pounds. if the screws in the rotor let go would I still have spark at the plugs? I am gonna get a code scanner and see if there is anything there. Jay I replaced the opti with a new gm unit when I replaced the ignition box with the msd 6al and went with otvc msd wire kit. The only thing I didn't replace was the coil and that was on the list. (I hate being too late) This was all less than a year ago. The old opti is on the shelf and it seemed to have alot of play.