03 Silverado 6.0 sluggish at full throttle???
#1
03 Silverado 6.0 sluggish at full throttle???
Hello, newbie here.
I was just curious if anyone might have an idea of what my problem might be.
The truck runs fine up to half throttle but if I floor it , it almost seems like the timing is off. I filled up with 91 oct and put some injector cleaner in the tank.
I will scan it with my obd2 tonight and see if I get any error codes, the engine light is not on at the moment and never was during this problem.
My guesses are:
Dirty fuel filter.
Dirty injectors.
Possibly the spark plugs which are stock but 5 years old.
Thanks in advance
Mike
I was just curious if anyone might have an idea of what my problem might be.
The truck runs fine up to half throttle but if I floor it , it almost seems like the timing is off. I filled up with 91 oct and put some injector cleaner in the tank.
I will scan it with my obd2 tonight and see if I get any error codes, the engine light is not on at the moment and never was during this problem.
My guesses are:
Dirty fuel filter.
Dirty injectors.
Possibly the spark plugs which are stock but 5 years old.
Thanks in advance
Mike
#3
Thanks Chris.
I ran a scan and got a "Lean Bank 2" which most likely means low fuel pressure to one side, so Ill try the fuel filter first. If I had the $$ I would do all the above but that will have to wait a bit. Dang Economy!
Mike
I ran a scan and got a "Lean Bank 2" which most likely means low fuel pressure to one side, so Ill try the fuel filter first. If I had the $$ I would do all the above but that will have to wait a bit. Dang Economy!
Mike
#5
Just out of curiousity how many miles were on that filter? Congrats by the way on fixing the problem, it was good info for me as well for future experiences. I have a problem with my truck running rich at full throttle and hope to lean out a little of that with a ram air kit from Vararam before doing a custom tune that costs more than I want to spend. The economy has hit me as well so I hear ya!
#6
72,000 on that filter. Its the original one from when I bought the truck. I hear these should be changed at least every 20,000 miles.
I too am looking to get a intake kit, I do have the stock air box off and have a K&N filter in place of it. In my opinion , it runs better with the stock air box on it with the stock intake. I will snap a few pics and post what I did.
I too am looking to get a intake kit, I do have the stock air box off and have a K&N filter in place of it. In my opinion , it runs better with the stock air box on it with the stock intake. I will snap a few pics and post what I did.
Last edited by Mike Sigmond; 04-05-2009 at 11:41 AM.
#9
Its all the original intake from the throttle body to the MAF. I just got a rubber reducer from ACE hardware to attach the K&N.
#10
I may just have to go down to Home Depot later. The only thing is that everytime I drive my truck up to the parking lot I have to ignore all the guys sitting around outside begging to help me move haha.