For a while now I?ve been noticing my truck has been acting funny under a load. Acting like it wants to go but something is holding it back. I have an 02 Avalanche 2500 with 191,000 miles on it. I?ve noticed that it doesn?t do the hesitation in the mornings mostly in the afternoon and usually at about 60 mph. It has done it at slower speeds but not as often or as much. When this happens I give it more gas and it evens out like nothing happened. Th other day when it started acting up the service engine soon light came on and started flashing. So I bought a scanner and the code it gave was P0300. Now to figure out what is the cause of the problem.
A couple of years ago I did a full tune up on the truck also around the same time I replaced my fuel filter and pump as well. So I really don?t think any of those are the problem but who knows. Someone had mentioned to me that it might be the catalytic converter that?s the problem. How do I go about figuring out if I do have a bad cat or if it is something else without just throwing parts at?
A couple of years ago I did a full tune up on the truck also around the same time I replaced my fuel filter and pump as well. So I really don?t think any of those are the problem but who knows. Someone had mentioned to me that it might be the catalytic converter that?s the problem. How do I go about figuring out if I do have a bad cat or if it is something else without just throwing parts at?
