I have a 94 thunderbird, 180,000 miles on it. it surges back and forth at all speeds although, I did put it in second gear and brought it up past
3500 rpm and it seemed to run fine. I also noticed that my oil pressure keeps dropping to low then goes back to normal. I know that my valve seals are leaking cuz I get a puff of smoke when I start the car but, that shouldn't make the car run bad. I just changed the oil put new plugs, cap and rotor in. timing is good. I put a new fuel filter in and a pcv valve. I had a vacuum leak, fixed that. i checked the codes and I only get a code for the hego sensor but that has been like that for about 4 years now. the car always ran great. I would appreciate any help. thank you- posted
17 years ago