My car hasnt wanted to start while the engine was up to temp for a while but now it doesnt matter if its warm or cold, it just doesn't want to start. Have to pump it and crank for 5-10 seconds to get it started and have to hold it at 2-3k rpm for another 10 seconds to keep it from dying. After that, it drives just fine. Cars a 90 wagon 1.5 fwd. Anything I should look for?