Engine runs perfect it seems, except sometimes when SLIGHTLY pushing on accelerator to go up a hill or slight incline, the engine and transmission will make a load bang or **** and the gauge cluster needles bang down like everything has lost electrical power for a split second. It only does it when you first just touch the accelerator going up a incline. Does not always do it, but 75% of the time. Does not seem to do it on level ground or downhill. When it happens the transmission also bangs real loud like it has also lost power. I think the trani is going out (been thinking that for 2 years) because it is hanging once in awhile between 2nd and 3rd up shift - but mainly has trouble DOWNSHIFTING with a bang between 2nd to 1st, especially if I pull up to a stop a little fast and apply the brakes. If I coast real slow to a stop it seems to be able to keep up. I have also noticed my fuel economy has been going downhill. The onboard computer tells me I only getting about 12 mpg avg. Seems like it is really bad when accelerating. When keeping it at an EVEN speed on the hwy. It is still getting about 22mpg. On constant speed on level ground. When I hit the accelerator it says I go down to 6 or 7 mpg. I have always done ALL maintainenance on this vehicle regularly. I just put new struts / tires / plugs&wires / trani fluid and filter change last spring. The trani was replaced by a dealer many miles ago (@75K). Will a diagnostic scanner be able to isolate or tell me what the problem is? I just hate to let this van go, it has been so good to our family.
have the same problem?
Tuesday, November 30th, 2010 AT 12:26 AM