I have a 98 dodge ram truck (gas) when towing or going up a hill and I give it gas the check engine light will come on and start blinking, then go off. I have also noticed that when punching it does not seem to shift, it will get to a bit over 3k rpms the slowly climb not shift until you let off the gas. during this acceleration no real power. (get up and go) any thoughts
thanks rrh