My 2001 Chevy Malibu is giving me a headache while I’m driving. Initially my wife told me that it’s psychosomatic, until she started getting headaches too. At first there was a smell, my mechanic replaced the EGR valve, replaced the water pump and a couple of hoses. No smell now, the exhaust has been checked out seems to be fine. The headaches still persist. I had the car checked for CO-2 by the fire department and it seems to be fine. What is causing these headaches?
The gas tank seems to be having a pressure issue when I fill it, could that be the problem? The mechanic has gone through it, doubts it’s the gas tank and really can’t find the problem. The car is in great shape otherwise and only 79,000 miles on it. It would be a shame to get rid of it.