I have a 1999 Dodge Dakota, 5.2 litre, 4 X 4. Recently the engine started to stumble around 1500 rpm. If I hit theexcelrator it will run throuh the missing. It only has 40,000 miles. Any ideas? Thanks - Bruce M.First, checkyour vehicle for any pending codes. You can also take a look at the O2 sensors, the fuel pressure (should change withload). Also, check the TPS, map, and crank sensors. You might also want to check for chaffing in the wire harness nearthe front of the left cylinder head.