GM tech
New member
I've had my Typhoon for 3-4 months,bought it with 13,053 miles and it has just over 16,000 now.It has a few problems I feel may be related but I can't pin down the cause.
1.off idle hesitation-there when I bought it.
2.stumble between 2000-2500 rpm,when driving or in park.Just started in last 1000 miles
3.ping under full throttle,getting more frequent over last 1000 miles.
4.Rough idle,DTC set for IAC,replaced IAC,no change(got lazy,relaced when found code).
Over all the truck runs good,none of the concerns are so bad it won't drive normal.The scary thing is I did my first oil change today and found a good amount of metal on the plug.Pieces big enough to roll between your fingers.It has had plugs,wires,cap/rotor and all fluids changed from bumper to bumper.I am feeling like maybe the distributor is going south,but I'm not very familiar with turbo vehicles and there drivabilty symptoms.Timing is fine,plugs look good.What to look for next?????
Nobody at the dealer I work at want's to get involved because of the mods,and this is the first Sy/Ty I've ever had in my rack,any opinions are welcome.
Thanks for reading this,I tryed to make it as short as possible.
1.off idle hesitation-there when I bought it.
2.stumble between 2000-2500 rpm,when driving or in park.Just started in last 1000 miles
3.ping under full throttle,getting more frequent over last 1000 miles.
4.Rough idle,DTC set for IAC,replaced IAC,no change(got lazy,relaced when found code).
Over all the truck runs good,none of the concerns are so bad it won't drive normal.The scary thing is I did my first oil change today and found a good amount of metal on the plug.Pieces big enough to roll between your fingers.It has had plugs,wires,cap/rotor and all fluids changed from bumper to bumper.I am feeling like maybe the distributor is going south,but I'm not very familiar with turbo vehicles and there drivabilty symptoms.Timing is fine,plugs look good.What to look for next?????
Nobody at the dealer I work at want's to get involved because of the mods,and this is the first Sy/Ty I've ever had in my rack,any opinions are welcome.
Thanks for reading this,I tryed to make it as short as possible.
