It looks like you're new here. If you want to get involved, click one of these buttons!
GMC Jimmy chugging
The problem I am having has occured and got worse over a couple months. It will start perfectly fine. It then at start at about mid RPM range start to chug then running a minute longer it will over come the whole RPM range and wont be able to accelorate and then sometimes putt out. But then not even 10 seconds or as soon as possible i can restart and then have the same problem. It has a recently new pump(4months), new plugs-wires-cap-rotor(yesterday), new fuel filter last week. Cleaned the TPS and IAC. Removed and blocked EGR. Took care of a couple vacuum leaks I could see. Fuel pressure tested OK and volts to the pump was right around 13.7. The oil seems a little gassy to me but not exactly sure. There is no smole out of the exhaust and no cat. Also i am going to try to clean the map/f sensor soon but where is it at. I am at work now no chiltons