GMC CANYON STALLS
I have a 2009 GMC Canyon with about 117,000 miles on it. It has a problem where it keeps wanting to stall when I'm driving it. It stalls at stop lights, stalls when going around corners (left or right) stalls when driving in a straight line. It has done it at different speeds. The really strange thing is it only seems to happen in the evening between about 5:30 and 7:30. It will stall and usually start back up with one to three tries. some time it will do it 3 or 4 times in a row and then it runs just fine for a few more days and then it does it again.
have had it to two different shops including a GM dealer and they cannot replicate the problem during their normal business hours. I have changed the Fuel Pump Control Module and have had the throttle body cleaned. I have also put fuel stabilizer in it. None of these things has solved the problem. What can I tell them to possibly check that all of their fancy diagnostic equipment isn't showing them?